/*****************************************************************************
** FILE IDENTIFICATION
**
-** Name: imagefile.cpp
-** Purpose: Imagefile classes
-** Programmer: Kevin Rosenberg
-** Date Started: June 2000
+** Name: imagefile.cpp
+** Purpose: Imagefile classes
+** Programmer: Kevin Rosenberg
+** Date Started: June 2000
**
** This is part of the CTSim program
-** Copyright (c) 1983-2001 Kevin Rosenberg
-**
-** $Id: imagefile.cpp,v 1.37 2001/01/28 19:10:18 kevin Exp $
+** Copyright (c) 1983-2009 Kevin Rosenberg
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License (version 2) as
******************************************************************************/
#include "ct.h"
+#ifdef HAVE_CTN_DICOM
+#include "ctndicom.h"
+#endif
+#include "interpolator.h"
+
+const double ImageFile::s_dRedGrayscaleFactor = 0.299;
+const double ImageFile::s_dGreenGrayscaleFactor = 0.587;
+const double ImageFile::s_dBlueGrayscaleFactor = 0.114;
+
+
+const int ImageFile::EXPORT_FORMAT_INVALID = -1;
+const int ImageFile::EXPORT_FORMAT_TEXT = 0;
+const int ImageFile::EXPORT_FORMAT_PGM = 1;
+const int ImageFile::EXPORT_FORMAT_PGMASCII = 2;
+#ifdef HAVE_PNG
+const int ImageFile::EXPORT_FORMAT_PNG = 3;
+const int ImageFile::EXPORT_FORMAT_PNG16 = 4;
+#endif
+#ifdef HAVE_CTN_DICOM
+const int ImageFile::EXPORT_FORMAT_DICOM = 5;
+#endif
+const int ImageFile::EXPORT_FORMAT_RAW = 6;
-const int ImageFile::FORMAT_INVALID = -1;
-const int ImageFile::FORMAT_PGM = 0;
-const int ImageFile::FORMAT_PGMASCII = 1;
+const char* ImageFile::s_aszExportFormatName[] =
+{
+ "text",
+ "pgm",
+ "pgmascii",
#ifdef HAVE_PNG
-const int ImageFile::FORMAT_PNG = 2;
-const int ImageFile::FORMAT_PNG16 = 3;
+ "png",
+ "png16",
+#endif
+#ifdef HAVE_CTN_DICOM
+ "dicom",
#endif
+};
-const char* ImageFile::s_aszFormatName[] =
+const char* ImageFile::s_aszExportFormatTitle[] =
{
- {"pgm"},
- {"pgmascii"},
+ "Text",
+ "PGM",
+ "PGM ASCII",
#ifdef HAVE_PNG
- {"png"},
- {"png16"},
+ "PNG",
+ "PNG 16-bit",
+#endif
+#ifdef HAVE_CTN_DICOM
+ "Dicom",
#endif
};
+const int ImageFile::s_iExportFormatCount = sizeof(s_aszExportFormatName) / sizeof(const char*);
+
+
+const int ImageFile::IMPORT_FORMAT_INVALID = -1;
+const int ImageFile::IMPORT_FORMAT_PPM = 0;
+#ifdef HAVE_PNG
+const int ImageFile::IMPORT_FORMAT_PNG = 1;
+#endif
+#ifdef HAVE_CTN_DICOM
+const int ImageFile::IMPORT_FORMAT_DICOM = 2;
+#endif
+
-const char* ImageFile::s_aszFormatTitle[] =
+const char* ImageFile::s_aszImportFormatName[] =
{
- {"PGM"},
- {"PGM ASCII"},
- {"PNG"},
- {"PNG 16-bit"},
+ "ppm",
+#ifdef HAVE_PNG
+ "png",
+#endif
+#ifdef HAVE_CTN_DICOM
+ "dicom",
+#endif
};
-const int ImageFile::s_iFormatCount = sizeof(s_aszFormatName) / sizeof(const char*);
+const char* ImageFile::s_aszImportFormatTitle[] =
+{
+ "PPM",
+#ifdef HAVE_PNG
+ "PNG",
+#endif
+#ifdef HAVE_CTN_DICOM
+ "Dicom",
+#endif
+};
+const int ImageFile::s_iImportFormatCount = sizeof(s_aszImportFormatName) / sizeof(const char*);
setDataType (Array2dFile::DATA_TYPE_REAL);
}
-void
+void
ImageFile::getCenterCoordinates (unsigned int& iXCenter, unsigned int& iYCenter)
{
if (isEven (m_nx))
}
-void
-ImageFile::filterResponse (const char* const domainName, double bw, const char* const filterName, double filt_param, double dInputScale, double dOutputScale)
+void
+ImageFile::filterResponse (const char* const domainName, double bw, const char* const filterName,
+ double filt_param, double dInputScale, double dOutputScale)
{
ImageFileArray v = getArray();
SignalFilter filter (filterName, domainName, bw, filt_param);
-
+
unsigned int iXCenter, iYCenter;
getCenterCoordinates (iXCenter, iYCenter);
}
}
-int
-ImageFile::display (void) const
-{
- double pmin, pmax;
-
- getMinMax (pmin, pmax);
-
- return (displayScaling (1, pmin, pmax));
-}
-
-int
-ImageFile::displayScaling (const int scale, const ImageFileValue pmin, const ImageFileValue pmax) const
-{
- int nx = m_nx;
- int ny = m_ny;
- ImageFileArrayConst v = getArray();
- if (v == NULL || nx == 0 || ny == 0)
- return 0;
-
-#if HAVE_G2_H
- int* pPens = new int [nx * ny * scale * scale ];
-
- double view_scale = 255 / (pmax - pmin);
- int id_X11 = g2_open_X11 (nx * scale, ny * scale);
- int grayscale[256];
- for (int i = 0; i < 256; i++) {
- double cval = i / 255.;
- grayscale[i] = g2_ink (id_X11, cval, cval, cval);
- }
-
- for (int iy = ny - 1; iy >= 0; iy--) {
- int iRowPos = ((ny - 1 - iy) * scale) * (nx * scale);
- for (int ix = 0; ix < nx; ix++) {
- int cval = static_cast<int>((v[ix][iy] - pmin) * view_scale);
- if (cval < 0)
- cval = 0;
- else if (cval > 255)
- cval = 255;
- for (int sy = 0; sy < scale; sy++)
- for (int sx = 0; sx < scale; sx++)
- pPens[iRowPos+(sy * nx * scale)+(sx + (ix * scale))] = grayscale[cval];
- }
- }
-
- g2_image (id_X11, 0., 0., nx * scale, ny * scale, pPens);
-
- delete pPens;
- return (id_X11);
-#else
- return 0;
-#endif
-}
-
-
// ImageFile::comparativeStatistics Calculate comparative stats
//
ImageFileArrayConst v = getArray();
if (v == NULL || m_nx == 0 || m_ny == 0)
return false;
-
+
ImageFileArrayConst vComp = imComp.getArray();
-
+
double myMean = 0.;
for (unsigned int ix = 0; ix < m_nx; ix++) {
for (unsigned int iy = 0; iy < m_ny; iy++) {
}
}
myMean /= (m_nx * m_ny);
-
+
double sqErrorSum = 0.;
double absErrorSum = 0.;
double sqDiffFromMeanSum = 0.;
absValueSum += fabs(v[ix2][iy]);
}
}
-
+
d = ::sqrt (sqErrorSum / sqDiffFromMeanSum);
r = absErrorSum / absValueSum;
-
+
int hx = m_nx / 2;
int hy = m_ny / 2;
double eMax = -1;
eMax = error;
}
}
-
+
e = eMax;
-
+
return true;
}
ImageFile::printComparativeStatistics (const ImageFile& imComp, std::ostream& os) const
{
double d, r, e;
-
+
if (comparativeStatistics (imComp, d, r, e)) {
os << " Normalized root mean squared distance (d): " << d << std::endl;
os << " Normalized mean absolute distance (r): " << r << std::endl;
ImageFile::printStatistics (std::ostream& os) const
{
double min, max, mean, mode, median, stddev;
-
+
statistics (min, max, mean, mode, median, stddev);
if (isComplex())
os << "Real Component Statistics" << std::endl;
-
+
os << " min: " << min << std::endl;
os << " max: " << max << std::endl;
os << " mean: " << mean << std::endl;
os << " mode: " << mode << std::endl;
os << "median: " << median << std::endl;
os << "stddev: " << stddev << std::endl;
-
+
if (isComplex()) {
statistics (getImaginaryArray(), min, max, mean, mode, median, stddev);
os << std::endl << "Imaginary Component Statistics" << std::endl;
{
int nx = m_nx;
int ny = m_ny;
-
+
if (v == NULL || nx == 0 || ny == 0)
return;
-
+
std::vector<double> vecImage;
int iVec = 0;
vecImage.resize (nx * ny);
for (int iy = 0; iy < ny; iy++)
vecImage[iVec++] = v[ix][iy];
}
-
+
vectorNumericStatistics (vecImage, nx * ny, min, max, mean, mode, median, stddev);
}
int nx = m_nx;
int ny = m_ny;
ImageFileArrayConst v = getArray();
-
+
if (v == NULL || nx == 0 || ny == 0)
return;
-
+
min = v[0][0];
max = v[0][0];
for (int ix = 0; ix < nx; ix++) {
{
if (dataType() != Array2dFile::DATA_TYPE_REAL)
return false;
-
+
if (! reallocRealToComplex())
return false;
-
+
ImageFileArray vImag = getImaginaryArray();
for (unsigned int ix = 0; ix < m_nx; ix++) {
ImageFileColumn vCol = vImag[ix];
for (unsigned int iy = 0; iy < m_ny; iy++)
*vCol++ = 0;
}
-
+
return true;
}
{
if (dataType() != Array2dFile::DATA_TYPE_COMPLEX)
return false;
-
+
ImageFileArray vReal = getArray();
ImageFileArray vImag = getImaginaryArray();
for (unsigned int ix = 0; ix < m_nx; ix++) {
vImagCol++;
}
}
-
+
return reallocComplexToReal();
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::subtractImage]");
return false;
}
-
- if (isComplex() || rRHS.isComplex() && ! result.isComplex())
+
+ if (isComplex() || (rRHS.isComplex() && ! result.isComplex()))
result.convertRealToComplex();
-
+
ImageFileArrayConst vLHS = getArray();
ImageFileArrayConst vLHSImag = getImaginaryArray();
ImageFileArrayConst vRHS = rRHS.getArray();
ImageFileArrayConst vRHSImag = rRHS.getImaginaryArray();
ImageFileArray vResult = result.getArray();
ImageFileArray vResultImag = result.getImaginaryArray();
-
+
for (unsigned int ix = 0; ix < m_nx; ix++) {
for (unsigned int iy = 0; iy < m_ny; iy++) {
vResult[ix][iy] = vLHS[ix][iy] - vRHS[ix][iy];
}
}
}
-
+
return true;
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::subtractImage]");
return false;
}
-
- if (isComplex() || rRHS.isComplex() && ! result.isComplex())
+
+ if (isComplex() || (rRHS.isComplex() && ! result.isComplex()))
result.convertRealToComplex();
-
+
ImageFileArrayConst vLHS = getArray();
ImageFileArrayConst vLHSImag = getImaginaryArray();
ImageFileArrayConst vRHS = rRHS.getArray();
ImageFileArrayConst vRHSImag = rRHS.getImaginaryArray();
ImageFileArray vResult = result.getArray();
ImageFileArray vResultImag = result.getImaginaryArray();
-
+
for (unsigned int ix = 0; ix < m_nx; ix++) {
for (unsigned int iy = 0; iy < m_ny; iy++) {
vResult[ix][iy] = vLHS[ix][iy] + vRHS[ix][iy];
}
}
}
-
+
return true;
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::subtractImage]");
return false;
}
-
- if (isComplex() || rRHS.isComplex() && ! result.isComplex())
+
+ if (isComplex() || (rRHS.isComplex() && ! result.isComplex()))
result.convertRealToComplex();
-
+
ImageFileArrayConst vLHS = getArray();
ImageFileArrayConst vLHSImag = getImaginaryArray();
ImageFileArrayConst vRHS = rRHS.getArray();
ImageFileArrayConst vRHSImag = rRHS.getImaginaryArray();
ImageFileArray vResult = result.getArray();
ImageFileArray vResultImag = result.getImaginaryArray();
-
+
for (unsigned int ix = 0; ix < m_nx; ix++) {
for (unsigned int iy = 0; iy < m_ny; iy++) {
if (result.isComplex()) {
vResult[ix][iy] = vLHS[ix][iy] * vRHS[ix][iy];
}
}
-
-
+
+
return true;
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::subtractImage]");
return false;
}
-
- if (isComplex() || rRHS.isComplex() && ! result.isComplex())
+
+ if (isComplex() || (rRHS.isComplex() && ! result.isComplex()))
result.convertRealToComplex();
-
+
ImageFileArrayConst vLHS = getArray();
ImageFileArrayConst vLHSImag = getImaginaryArray();
ImageFileArrayConst vRHS = rRHS.getArray();
ImageFileArrayConst vRHSImag = rRHS.getImaginaryArray();
ImageFileArray vResult = result.getArray();
ImageFileArray vResultImag = result.getImaginaryArray();
-
+
for (unsigned int ix = 0; ix < m_nx; ix++) {
for (unsigned int iy = 0; iy < m_ny; iy++) {
if (result.isComplex()) {
}
}
}
-
+
return true;
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
return false;
}
-
+
if (isComplex() && ! result.isComplex())
result.convertRealToComplex();
-
+
ImageFileArrayConst vLHS = getArray();
ImageFileArray vResult = result.getArray();
-
+
for (unsigned int ix = 0; ix < m_nx; ix++) {
ImageFileColumnConst in = vLHS[ix];
ImageFileColumn out = vResult[ix];
for (unsigned int iy = 0; iy < m_ny; iy++)
*out++ = - *in++;
}
-
+
return true;
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
return false;
}
-
+
if (isComplex() && ! result.isComplex())
result.convertRealToComplex();
-
+
bool bComplexOutput = result.isComplex();
ImageFileArrayConst vLHS = getArray();
if (! bComplexOutput) // check if should convert to complex output
bComplexOutput = true;
break;
}
-
+
ImageFileArrayConst vLHSImag = getImaginaryArray();
ImageFileArray vResult = result.getArray();
ImageFileArray vResultImag = result.getImaginaryArray();
-
+
for (unsigned int ix = 0; ix < m_nx; ix++) {
for (unsigned int iy = 0; iy < m_ny; iy++) {
if (result.isComplex()) {
vResult[ix][iy] = ::sqrt (vLHS[ix][iy]);
}
}
-
-
+
+
return true;
}
ImageFile::log (ImageFile& result) const
{
if (m_nx != result.nx() || m_ny != result.ny()) {
- sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::log]");
return false;
}
-
+
if (isComplex() && ! result.isComplex())
result.convertRealToComplex();
-
+
ImageFileArrayConst vLHS = getArray();
ImageFileArrayConst vLHSImag = getImaginaryArray();
ImageFileArray vResult = result.getArray();
ImageFileArray vResultImag = result.getImaginaryArray();
-
+
for (unsigned int ix = 0; ix < m_nx; ix++) {
for (unsigned int iy = 0; iy < m_ny; iy++) {
if (result.isComplex()) {
std::complex<double> cResult = std::log (cLHS);
vResult[ix][iy] = cResult.real();
vResultImag[ix][iy] = cResult.imag();
- } else
- vResult[ix][iy] = ::log (vLHS[ix][iy]);
+ } else {
+ if (vLHS[ix][iy] > 0)
+ vResult[ix][iy] = ::log (vLHS[ix][iy]);
+ else
+ vResult[ix][iy] = 0;
+ }
}
}
-
-
+
+
return true;
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
return false;
}
-
+
if (isComplex() && ! result.isComplex())
result.convertRealToComplex();
-
+
ImageFileArrayConst vLHS = getArray();
ImageFileArrayConst vLHSImag = getImaginaryArray();
ImageFileArray vResult = result.getArray();
ImageFileArray vResultImag = result.getImaginaryArray();
-
+
for (unsigned int ix = 0; ix < m_nx; ix++) {
for (unsigned int iy = 0; iy < m_ny; iy++) {
if (result.isComplex()) {
vResult[ix][iy] = ::exp (vLHS[ix][iy]);
}
}
-
-
+
+
return true;
}
unsigned int ny = m_ny;
unsigned int newNX = result.nx();
unsigned int newNY = result.ny();
-
+
double dXScale = static_cast<double>(newNX) / static_cast<double>(nx);
double dYScale = static_cast<double>(newNY) / static_cast<double>(ny);
-
+
if (isComplex() && ! result.isComplex())
result.convertRealToComplex();
-
+
ImageFileArrayConst vReal = getArray();
ImageFileArrayConst vImag = getImaginaryArray();
ImageFileArray vResult = result.getArray();
ImageFileArray vResultImag = result.getImaginaryArray();
-
+
+ BilinearInterpolator<ImageFileValue> realInterp (vReal, nx, ny);
+ BilinearInterpolator<ImageFileValue> imagInterp (vImag, nx, ny);
+
for (unsigned int ix = 0; ix < newNX; ix++) {
for (unsigned int iy = 0; iy < newNY; iy++) {
double dXPos = ix / dXScale;
double dYPos = iy / dYScale;
- unsigned int scaleNX = static_cast<unsigned int> (dXPos);
- unsigned int scaleNY = static_cast<unsigned int> (dYPos);
- double dXFrac = dXPos - scaleNX;
- double dYFrac = dYPos - scaleNY;
- if (scaleNX >= nx - 1 || scaleNY >= ny - 1) {
- vResult[ix][iy] = vReal[scaleNX][scaleNY];
- if (result.isComplex()) {
- if (isComplex())
- vResultImag[ix][iy] = vImag[scaleNX][scaleNY];
- else
- vResultImag[ix][iy] = 0;
- }
- } else {
- vResult[ix][iy] = (1 - dXFrac) * (1 - dYFrac) * vReal[scaleNX][scaleNY] +
- dXFrac * (1 - dYFrac) * vReal[scaleNX+1][scaleNY] +
- dYFrac * (1 - dXFrac) * vReal[scaleNX][scaleNY+1] +
- dXFrac * dYFrac * vReal[scaleNX+1][scaleNY+1];
- if (result.isComplex()) {
- if (isComplex())
- vResultImag[ix][iy] = (1 - dXFrac) * (1 - dYFrac) * vImag[scaleNX][scaleNY] +
- dXFrac * (1 - dYFrac) * vImag[scaleNX+1][scaleNY] +
- dYFrac * (1 - dXFrac) * vImag[scaleNX][scaleNY+1] +
- dXFrac * dYFrac * vImag[scaleNX+1][scaleNY+1];
- else
- vResultImag[ix][iy] = 0;
+ vResult[ix][iy] = realInterp.interpolate (dXPos, dYPos);
+ if (result.isComplex()) {
+ if (isComplex()) {
+ vResultImag[ix][iy] = imagInterp.interpolate (dXPos, dYPos);
+ } else {
+ vResultImag[ix][iy] = 0;
}
}
}
}
-
+
return true;
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
return false;
}
-
+
if (result.dataType() == Array2dFile::DATA_TYPE_REAL) {
if (! result.convertRealToComplex ())
return false;
}
-
- fftw_complex* in = new fftw_complex [m_nx * m_ny];
-
+
+ fftw_complex* in = static_cast<fftw_complex*> (fftw_malloc (sizeof(fftw_complex) * m_nx * m_ny));
+
ImageFileArrayConst vReal = getArray();
ImageFileArrayConst vImag = getImaginaryArray();
-
+
unsigned int ix, iy;
unsigned int iArray = 0;
- for (ix = 0; ix < m_nx; ix++)
+ for (ix = 0; ix < m_nx; ix++) {
for (iy = 0; iy < m_ny; iy++) {
- in[iArray].re = vReal[ix][iy];
+ in[iArray][0] = vReal[ix][iy];
if (isComplex())
- in[iArray].im = vImag[ix][iy];
+ in[iArray][1] = vImag[ix][iy];
else
- in[iArray].im = 0;
+ in[iArray][1] = 0;
iArray++;
}
-
- fftwnd_plan plan = fftw2d_create_plan (m_nx, m_ny, FFTW_FORWARD, FFTW_IN_PLACE);
-
- fftwnd_one (plan, in, NULL);
-
- ImageFileArray vRealResult = result.getArray();
- ImageFileArray vImagResult = result.getImaginaryArray();
- iArray = 0;
- unsigned int iScale = m_nx * m_ny;
- for (ix = 0; ix < m_nx; ix++)
- for (iy = 0; iy < m_ny; iy++) {
- vRealResult[ix][iy] = in[iArray].re / iScale;
- vImagResult[ix][iy] = in[iArray].im / iScale;
- iArray++;
- }
-
- fftwnd_destroy_plan (plan);
- delete in;
-
-
- Fourier::shuffleFourierToNaturalOrder (result);
-
- return true;
+ }
+
+ fftw_plan plan = fftw_plan_dft_2d (m_nx, m_ny, in, in, FFTW_FORWARD, FFTW_ESTIMATE);
+ fftw_execute (plan);
+
+ ImageFileArray vRealResult = result.getArray();
+ ImageFileArray vImagResult = result.getImaginaryArray();
+ iArray = 0;
+ unsigned int iScale = m_nx * m_ny;
+ for (ix = 0; ix < m_nx; ix++) {
+ for (iy = 0; iy < m_ny; iy++) {
+ vRealResult[ix][iy] = in[iArray][0] / iScale;
+ vImagResult[ix][iy] = in[iArray][1] / iScale;
+ iArray++;
+ }
+ }
+ fftw_free(in);
+ fftw_destroy_plan (plan);
+
+ Fourier::shuffleFourierToNaturalOrder (result);
+
+ return true;
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
return false;
}
-
+
if (result.dataType() == Array2dFile::DATA_TYPE_REAL) {
if (! result.convertRealToComplex ())
return false;
}
-
+
ImageFileArrayConst vReal = getArray();
ImageFileArrayConst vImag = getImaginaryArray();
ImageFileArray vRealResult = result.getArray();
ImageFileArray vImagResult = result.getImaginaryArray();
unsigned int ix, iy;
- for (ix = 0; ix < m_nx; ix++)
+ for (ix = 0; ix < m_nx; ix++) {
for (iy = 0; iy < m_ny; iy++) {
vRealResult[ix][iy] = vReal[ix][iy];
- if (isComplex())
+ if (isComplex())
vImagResult[ix][iy] = vImag[ix][iy];
else
vImagResult[ix][iy] = 0;
}
-
- Fourier::shuffleNaturalToFourierOrder (result);
-
- fftw_complex* in = new fftw_complex [m_nx * m_ny];
-
- unsigned int iArray = 0;
- for (ix = 0; ix < m_nx; ix++)
- for (iy = 0; iy < m_ny; iy++) {
- in[iArray].re = vRealResult[ix][iy];
- in[iArray].im = vImagResult[ix][iy];
- iArray++;
- }
-
- fftwnd_plan plan = fftw2d_create_plan (m_nx, m_ny, FFTW_BACKWARD, FFTW_IN_PLACE);
-
- fftwnd_one (plan, in, NULL);
-
- iArray = 0;
- for (ix = 0; ix < m_nx; ix++)
- for (iy = 0; iy < m_ny; iy++) {
- vRealResult[ix][iy] = in[iArray].re;
- vImagResult[ix][iy] = in[iArray].im;
- iArray++;
- }
-
- fftwnd_destroy_plan (plan);
-
- delete in;
-
- return true;
+ }
+
+ Fourier::shuffleNaturalToFourierOrder (result);
+
+ fftw_complex* in = static_cast<fftw_complex*>(fftw_malloc(sizeof(fftw_complex) * m_nx * m_ny));
+
+ unsigned int iArray = 0;
+ for (ix = 0; ix < m_nx; ix++) {
+ for (iy = 0; iy < m_ny; iy++) {
+ in[iArray][0] = vRealResult[ix][iy];
+ in[iArray][1] = vImagResult[ix][iy];
+ iArray++;
+ }
+ }
+
+ fftw_plan plan = fftw_plan_dft_2d (m_nx, m_ny, in, in, FFTW_BACKWARD, FFTW_ESTIMATE);
+
+ fftw_execute (plan);
+
+ iArray = 0;
+ for (ix = 0; ix < m_nx; ix++) {
+ for (iy = 0; iy < m_ny; iy++) {
+ vRealResult[ix][iy] = in[iArray][0];
+ vImagResult[ix][iy] = in[iArray][1];
+ iArray++;
+ }
+ }
+ fftw_destroy_plan (plan);
+ fftw_free(in);
+
+ return true;
}
bool
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::fftRows]");
return false;
}
-
+
if (result.dataType() == Array2dFile::DATA_TYPE_REAL) {
if (! result.convertRealToComplex ())
return false;
}
-
- fftw_complex* in = new fftw_complex [m_nx];
-
+
ImageFileArrayConst vReal = getArray();
ImageFileArrayConst vImag = getImaginaryArray();
-
- fftw_plan plan = fftw_create_plan (m_nx, FFTW_FORWARD, FFTW_IN_PLACE);
- std::complex<double>* pcRow = new std::complex<double> [m_nx];
- unsigned int ix, iy;
- unsigned int iArray = 0;
- for (iy = 0; iy < m_ny; iy++) {
+ fftw_complex* in = static_cast<fftw_complex*>(fftw_malloc(sizeof(fftw_complex) * m_nx));
+ fftw_plan plan = fftw_plan_dft_1d (m_nx, in, in, FFTW_FORWARD, FFTW_ESTIMATE);
+
+ std::complex<double>* pcRow = new std::complex<double> [m_nx];
+ for (unsigned int iy = 0; iy < m_ny; iy++) {
+ unsigned int ix;
for (ix = 0; ix < m_nx; ix++) {
- in[ix].re = vReal[ix][iy];
+ in[ix][0] = vReal[ix][iy];
if (isComplex())
- in[ix].im = vImag[ix][iy];
+ in[ix][1] = vImag[ix][iy];
else
- in[ix].im = 0;
+ in[ix][1] = 0;
}
- fftw_one (plan, in, NULL);
+ fftw_execute (plan);
for (ix = 0; ix < m_nx; ix++)
- pcRow[ix] = std::complex<double>(in[ix].re, in[ix].im);
+ pcRow[ix] = std::complex<double>(in[ix][0], in[ix][1]);
Fourier::shuffleFourierToNaturalOrder (pcRow, m_nx);
for (ix = 0; ix < m_nx; ix++) {
- vReal[ix][iy] = pcRow[ix].real();
- vImag[ix][iy] = pcRow[ix].imag();
+ vReal[ix][iy] = pcRow[ix].real() / m_nx;
+ vImag[ix][iy] = pcRow[ix].imag() / m_nx;
}
}
delete [] pcRow;
-
- fftw_destroy_plan (plan);
- delete in;
- return true;
-}
+ fftw_destroy_plan (plan);
+ fftw_free(in);
+
+ return true;
+}
bool
ImageFile::ifftRows (ImageFile& result) const
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::fftRows]");
return false;
}
-
+
if (result.dataType() == Array2dFile::DATA_TYPE_REAL) {
if (! result.convertRealToComplex ())
return false;
}
-
- fftw_complex* in = new fftw_complex [m_nx];
-
+
ImageFileArrayConst vReal = getArray();
ImageFileArrayConst vImag = getImaginaryArray();
-
- fftw_plan plan = fftw_create_plan (m_nx, FFTW_BACKWARD, FFTW_IN_PLACE);
+
+ fftw_complex* in = static_cast<fftw_complex*>(fftw_malloc(sizeof(fftw_complex) * m_nx));
+ fftw_plan plan = fftw_plan_dft_1d (m_nx, in, in, FFTW_BACKWARD, FFTW_ESTIMATE);
std::complex<double>* pcRow = new std::complex<double> [m_nx];
unsigned int ix, iy;
- unsigned int iArray = 0;
+ // unsigned int iArray = 0;
for (iy = 0; iy < m_ny; iy++) {
for (ix = 0; ix < m_nx; ix++) {
double dImag = 0;
Fourier::shuffleNaturalToFourierOrder (pcRow, m_nx);
for (ix = 0; ix < m_nx; ix++) {
- in[ix].re = pcRow[ix].real();
- in[ix].im = pcRow[ix].imag();
+ in[ix][0] = pcRow[ix].real();
+ in[ix][1] = pcRow[ix].imag();
}
- fftw_one (plan, in, NULL);
+ fftw_execute (plan);
for (ix = 0; ix < m_nx; ix++) {
- vReal[ix][iy] = in[ix].re;
- vImag[ix][iy] = in[ix].im;
+ vReal[ix][iy] = in[ix][0];
+ vImag[ix][iy] = in[ix][1];
}
}
delete [] pcRow;
-
- fftw_destroy_plan (plan);
- delete in;
- return true;
+ fftw_destroy_plan (plan);
+ fftw_free(in);
+
+ return true;
}
bool
ImageFile::fftCols (ImageFile& result) const
{
- return false;
+ if (m_nx != result.nx() || m_ny != result.ny()) {
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::fftRows]");
+ return false;
+ }
+
+ if (result.dataType() == Array2dFile::DATA_TYPE_REAL) {
+ if (! result.convertRealToComplex ())
+ return false;
+ }
+
+ ImageFileArrayConst vReal = getArray();
+ ImageFileArrayConst vImag = getImaginaryArray();
+
+ fftw_complex* in = static_cast<fftw_complex*>(fftw_malloc(sizeof(fftw_complex) * m_ny));
+ fftw_plan plan = fftw_plan_dft_1d (m_ny, in, in, FFTW_FORWARD, FFTW_ESTIMATE);
+
+ std::complex<double>* pcCol = new std::complex<double> [m_ny];
+ for (unsigned int ix = 0; ix < m_nx; ix++) {
+ unsigned int iy;
+ for (iy = 0; iy < m_ny; iy++) {
+ in[iy][0] = vReal[ix][iy];
+ if (isComplex())
+ in[iy][1] = vImag[ix][iy];
+ else
+ in[iy][1] = 0;
+ }
+
+ fftw_execute (plan);
+
+ for (iy = 0; iy < m_ny; iy++)
+ pcCol[iy] = std::complex<double>(in[iy][0], in[iy][1]);
+
+ Fourier::shuffleFourierToNaturalOrder (pcCol, m_ny);
+ for (iy = 0; iy < m_ny; iy++) {
+ vReal[ix][iy] = pcCol[iy].real() / m_ny;
+ vImag[ix][iy] = pcCol[iy].imag() / m_ny;
+ }
+ }
+ delete [] pcCol;
+
+ fftw_destroy_plan (plan);
+ fftw_free(in);
+
+ return true;
}
bool
ImageFile::ifftCols (ImageFile& result) const
{
- return false;
+ if (m_nx != result.nx() || m_ny != result.ny()) {
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::fftRows]");
+ return false;
+ }
+
+ if (result.dataType() == Array2dFile::DATA_TYPE_REAL) {
+ if (! result.convertRealToComplex ())
+ return false;
+ }
+
+ ImageFileArrayConst vReal = getArray();
+ ImageFileArrayConst vImag = getImaginaryArray();
+
+ fftw_complex* in = static_cast<fftw_complex*>(fftw_malloc(sizeof(fftw_complex) * m_ny));
+ fftw_plan plan = fftw_plan_dft_1d (m_ny, in, in, FFTW_BACKWARD, FFTW_ESTIMATE);
+ std::complex<double>* pcCol = new std::complex<double> [m_ny];
+
+ unsigned int ix, iy;
+ // unsigned int iArray = 0;
+ for (ix = 0; ix < m_nx; ix++) {
+ for (iy = 0; iy < m_ny; iy++) {
+ double dImag = 0;
+ if (isComplex())
+ dImag = vImag[ix][iy];
+ pcCol[iy] = std::complex<double> (vReal[ix][iy], dImag);
+ }
+
+ Fourier::shuffleNaturalToFourierOrder (pcCol, m_ny);
+
+ for (iy = 0; iy < m_ny; iy++) {
+ in[iy][0] = pcCol[iy].real();
+ in[iy][1] = pcCol[iy].imag();
+ }
+
+ fftw_execute (plan);
+
+ for (iy = 0; iy < m_ny; iy++) {
+ vReal[ix][iy] = in[iy][0];
+ vImag[ix][iy] = in[iy][1];
+ }
+ }
+ delete [] pcCol;
+
+ fftw_destroy_plan (plan);
+ fftw_free(in);
+
+ return true;
}
#endif // HAVE_FFTW
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
return false;
}
-
+
if (! result.isComplex())
if (! result.convertRealToComplex ())
return false;
-
+
ImageFileArrayConst vLHS = getArray();
ImageFileArrayConst vLHSImag = getImaginaryArray();
ImageFileArray vRealResult = result.getArray();
ImageFileArray vImagResult = result.getImaginaryArray();
-
+
unsigned int ix, iy;
-
+
// alloc output matrix
CTSimComplex** complexOut = new CTSimComplex* [m_nx];
for (ix = 0; ix < m_nx; ix++)
complexOut[ix] = new CTSimComplex [m_ny];
-
+
// fourier each x column
CTSimComplex* pY = new CTSimComplex [m_ny];
for (ix = 0; ix < m_nx; ix++) {
if (isComplex())
dImag = vLHSImag[ix][iy];
pY[iy] = std::complex<double>(vLHS[ix][iy], dImag);
- }
+ }
ProcessSignal::finiteFourierTransform (pY, complexOut[ix], m_ny, ProcessSignal::FORWARD);
}
delete [] pY;
-
+
// fourier each y row
CTSimComplex* pX = new CTSimComplex [m_nx];
CTSimComplex* complexOutRow = new CTSimComplex [m_nx];
}
delete [] pX;
delete [] complexOutRow;
-
+
for (ix = 0; ix < m_nx; ix++)
for (iy = 0; iy < m_ny; iy++) {
vRealResult[ix][iy] = complexOut[ix][iy].real();
vImagResult[ix][iy] = complexOut[ix][iy].imag();
}
-
+
Fourier::shuffleFourierToNaturalOrder (result);
-
+
// delete complexOut matrix
for (ix = 0; ix < m_nx; ix++)
delete [] complexOut[ix];
delete [] complexOut;
-
+
return true;
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
return false;
}
-
+
if (result.dataType() == Array2dFile::DATA_TYPE_REAL) {
if (! result.convertRealToComplex ())
return false;
}
-
+
ImageFileArrayConst vLHSReal = getArray();
ImageFileArrayConst vLHSImag = getImaginaryArray();
ImageFileArray vRealResult = result.getArray();
ImageFileArray vImagResult = result.getImaginaryArray();
-
+
unsigned int ix, iy;
// alloc 2d complex output matrix
CTSimComplex** complexOut = new CTSimComplex* [m_nx];
for (ix = 0; ix < m_nx; ix++)
complexOut[ix] = new CTSimComplex [m_ny];
-
+
// put input image into result
for (ix = 0; ix < m_nx; ix++)
for (iy = 0; iy < m_ny; iy++) {
else
vImagResult[ix][iy] = 0;
}
-
+
Fourier::shuffleNaturalToFourierOrder (result);
-
+
// ifourier each x column
CTSimComplex* pCol = new CTSimComplex [m_ny];
for (ix = 0; ix < m_nx; ix++) {
ProcessSignal::finiteFourierTransform (pCol, complexOut[ix], m_ny, ProcessSignal::BACKWARD);
}
delete [] pCol;
-
+
// ifourier each y row
CTSimComplex* complexInRow = new CTSimComplex [m_nx];
CTSimComplex* complexOutRow = new CTSimComplex [m_nx];
}
delete [] complexInRow;
delete [] complexOutRow;
-
+
for (ix = 0; ix < m_nx; ix++)
for (iy = 0; iy < m_ny; iy++) {
vRealResult[ix][iy] = complexOut[ix][iy].real();
vImagResult[ix][iy] = complexOut[ix][iy].imag();
}
-
+
// delete complexOut matrix
for (ix = 0; ix < m_nx; ix++)
delete [] complexOut[ix];
delete [] complexOut;
-
+
return true;
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
return false;
}
-
+
ImageFileArray vReal = getArray();
ImageFileArray vImag = getImaginaryArray();
ImageFileArray vRealResult = result.getArray();
-
+
for (unsigned int ix = 0; ix < m_nx; ix++)
for (unsigned int iy = 0; iy < m_ny; iy++) {
- if (isComplex())
+ if (isComplex())
vRealResult[ix][iy] = ::sqrt (vReal[ix][iy] * vReal[ix][iy] + vImag[ix][iy] * vImag[ix][iy]);
else
- vRealResult[ix][iy] = vReal[ix][iy];
+ vRealResult[ix][iy] = ::fabs(vReal[ix][iy]);
}
-
+
if (result.isComplex())
- result.convertComplexToReal();
-
+ result.reallocComplexToReal();
+
return true;
}
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
return false;
}
-
+
ImageFileArray vReal = getArray();
ImageFileArray vImag = getImaginaryArray();
ImageFileArray vRealResult = result.getArray();
-
- for (unsigned int ix = 0; ix < m_nx; ix++)
+
+ for (unsigned int ix = 0; ix < m_nx; ix++) {
for (unsigned int iy = 0; iy < m_ny; iy++) {
if (isComplex())
vRealResult[ix][iy] = ::atan2 (vImag[ix][iy], vReal[ix][iy]);
else
vRealResult[ix][iy] = 0;
}
-
- if (result.isComplex())
- result.convertComplexToReal();
-
- return true;
+ }
+ if (result.isComplex())
+ result.reallocComplexToReal();
+
+ return true;
+}
+
+bool
+ImageFile::real (ImageFile& result) const
+{
+ if (m_nx != result.nx() || m_ny != result.ny()) {
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
+ return false;
+ }
+
+ ImageFileArray vReal = getArray();
+ ImageFileArray vRealResult = result.getArray();
+
+ for (unsigned int ix = 0; ix < m_nx; ix++) {
+ for (unsigned int iy = 0; iy < m_ny; iy++) {
+ vRealResult[ix][iy] = vReal[ix][iy];
+ }
+ }
+
+ if (result.isComplex())
+ result.reallocComplexToReal();
+
+ return true;
+}
+
+bool
+ImageFile::imaginary (ImageFile& result) const
+{
+ if (m_nx != result.nx() || m_ny != result.ny()) {
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
+ return false;
+ }
+
+ ImageFileArray vImag = getArray();
+ ImageFileArray vRealResult = result.getArray();
+
+ for (unsigned int ix = 0; ix < m_nx; ix++) {
+ for (unsigned int iy = 0; iy < m_ny; iy++) {
+ if (isComplex())
+ vRealResult[ix][iy] = vImag[ix][iy];
+ else
+ vRealResult[ix][iy] = 0;
+ }
+ }
+
+ if (result.isComplex())
+ result.reallocComplexToReal();
+
+ return true;
}
bool
sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");
return false;
}
-
+
if (isComplex() && ! result.isComplex())
result.convertRealToComplex();
-
+
ImageFileArrayConst vLHS = getArray();
ImageFileArrayConst vLHSImag = getImaginaryArray();
ImageFileArray vResult = result.getArray();
ImageFileArray vResultImag = result.getImaginaryArray();
-
+
for (unsigned int ix = 0; ix < m_nx; ix++) {
for (unsigned int iy = 0; iy < m_ny; iy++) {
if (result.isComplex()) {
vResult[ix][iy] = vLHS[ix][iy] * vLHS[ix][iy];
}
}
-
-
+
return true;
}
int
-ImageFile::convertFormatNameToID (const char* const formatName)
+ImageFile::convertExportFormatNameToID (const char* const formatName)
{
- int formatID = FORMAT_INVALID;
-
- for (int i = 0; i < s_iFormatCount; i++)
- if (strcasecmp (formatName, s_aszFormatName[i]) == 0) {
+ int formatID = EXPORT_FORMAT_INVALID;
+
+ for (int i = 0; i < s_iExportFormatCount; i++)
+ if (strcasecmp (formatName, s_aszExportFormatName[i]) == 0) {
formatID = i;
break;
}
-
+
return (formatID);
}
const char*
-ImageFile::convertFormatIDToName (int formatID)
+ImageFile::convertExportFormatIDToName (int formatID)
{
static const char *formatName = "";
-
- if (formatID >= 0 && formatID < s_iFormatCount)
- return (s_aszFormatName[formatID]);
-
+
+ if (formatID >= 0 && formatID < s_iExportFormatCount)
+ return (s_aszExportFormatName[formatID]);
+
return (formatName);
}
const char*
-ImageFile::convertFormatIDToTitle (const int formatID)
+ImageFile::convertExportFormatIDToTitle (const int formatID)
{
static const char *formatTitle = "";
-
- if (formatID >= 0 && formatID < s_iFormatCount)
- return (s_aszFormatTitle[formatID]);
-
+
+ if (formatID >= 0 && formatID < s_iExportFormatCount)
+ return (s_aszExportFormatTitle[formatID]);
+
+ return (formatTitle);
+}
+
+int
+ImageFile::convertImportFormatNameToID (const char* const formatName)
+{
+ int formatID = IMPORT_FORMAT_INVALID;
+
+ for (int i = 0; i < s_iImportFormatCount; i++)
+ if (strcasecmp (formatName, s_aszImportFormatName[i]) == 0) {
+ formatID = i;
+ break;
+ }
+
+ return (formatID);
+}
+
+const char*
+ImageFile::convertImportFormatIDToName (int formatID)
+{
+ static const char *formatName = "";
+
+ if (formatID >= 0 && formatID < s_iImportFormatCount)
+ return (s_aszImportFormatName[formatID]);
+
+ return (formatName);
+}
+
+const char*
+ImageFile::convertImportFormatIDToTitle (const int formatID)
+{
+ static const char *formatTitle = "";
+
+ if (formatID >= 0 && formatID < s_iImportFormatCount)
+ return (s_aszImportFormatTitle[formatID]);
+
return (formatTitle);
}
bool
-ImageFile::exportImage (const char* const pszFormat, const char* const pszFilename, int nxcell, int nycell, double densmin, double densmax)
+ImageFile::importImage (const char* const pszFormat, const char* const pszFilename)
+{
+ int iFormatID = convertImportFormatNameToID (pszFormat);
+
+ if (iFormatID == IMPORT_FORMAT_PPM)
+ return readImagePPM (pszFilename);
+#ifdef HAVE_PNG
+ else if (iFormatID == IMPORT_FORMAT_PNG)
+ return readImagePNG (pszFilename);
+#endif
+
+ sys_error (ERR_SEVERE, "Invalid format %s [ImageFile::importImage]", pszFormat);
+ return false;
+}
+
+void
+ImageFile::skipSpacePPM (FILE* fp)
+{
+ int c = fgetc (fp);
+ while (isspace (c) || c == '#') {
+ if (c == '#') { // comment until end of line
+ c = fgetc(fp);
+ while (c != 13 && c != 10)
+ c = fgetc(fp);
+ }
+ else
+ c = fgetc(fp);
+ }
+
+ ungetc (c, fp);
+}
+
+bool
+ImageFile::readImagePPM (const char* const pszFile)
+{
+ FILE* fp = fopen (pszFile, "r");
+ if ((fp = fopen (pszFile, "r")) == NULL)
+ return false;
+ char cSignature = toupper(fgetc(fp));
+ if (cSignature != 'P') {
+ fclose(fp);
+ return false;
+ }
+ cSignature = fgetc(fp);
+ if (cSignature == '5' || cSignature == '6') { // binary modes
+ fclose(fp);
+ fp = fopen(pszFile, "rb"); // reopen in binary mode
+ fgetc(fp);
+ fgetc(fp);
+ } else if (cSignature != '2' && cSignature != '3') {
+ fclose(fp);
+ return false;
+ }
+
+ int nRows, nCols, iMaxValue;
+ skipSpacePPM (fp);
+ if (fscanf (fp, "%d", &nCols) != 1) {
+ fclose(fp);
+ return false;
+ }
+ skipSpacePPM (fp);
+ if (fscanf (fp, "%d", &nRows) != 1) {
+ fclose(fp);
+ return false;
+ }
+ skipSpacePPM (fp);
+ if (fscanf (fp, "%d", &iMaxValue) != 1) {
+ fclose(fp);
+ return false;
+ }
+ setArraySize (nRows, nCols);
+
+ if (cSignature == '5' || cSignature == '6') { // binary modes
+ int c = fgetc(fp);
+ if (c == 13) {
+ c = fgetc(fp);
+ if (c != 10) // read msdos 13-10 newline
+ ungetc(c, fp);
+ }
+ } else
+ skipSpacePPM (fp); // ascii may have comments
+
+ bool bMonochromeImage = false;
+ double dMaxValue = iMaxValue;
+ double dMaxValue3 = iMaxValue * 3;
+
+ ImageFileArray v = getArray();
+ for (int iy = nRows - 1; iy >= 0; iy--) {
+ for (int ix = 0; ix < nCols; ix++) {
+ int iGS, iR, iG, iB;
+ double dR, dG, dB;
+ switch (cSignature) {
+ case '2':
+ if (fscanf(fp, "%d ", &iGS) != 1) {
+ fclose(fp);
+ return false;
+ }
+ v[ix][iy] = iGS / dMaxValue;
+ break;
+ case '5':
+ iGS = fgetc(fp);
+ if (iGS == EOF) {
+ fclose(fp);
+ return false;
+ }
+ v[ix][iy] = iGS / dMaxValue;
+ break;
+ case '3':
+ if (fscanf (fp, "%d %d %d ", &iR, &iG, &iB) != 3) {
+ fclose(fp);
+ return false;
+ }
+ if (ix == 0 && iy == 0 && (iR == iG && iG == iB))
+ bMonochromeImage = true;
+ if (bMonochromeImage)
+ v[ix][iy] = (iR + iG + iB) / dMaxValue3;
+ else {
+ dR = iR / dMaxValue;
+ dG = iG / dMaxValue;
+ dB = iB / dMaxValue;
+ v[ix][iy] = colorToGrayscale (dR, dG, dB);
+ }
+ break;
+ case '6':
+ iR = fgetc(fp);
+ iG = fgetc(fp);
+ iB = fgetc(fp);
+
+ if (iB == EOF) {
+ fclose(fp);
+ return false;
+ }
+ if (ix == 0 && iy == 0 && (iR == iG && iG == iB))
+ bMonochromeImage = true;
+
+ if (bMonochromeImage)
+ v[ix][iy] = (iR + iG + iB) / dMaxValue3;
+ else {
+ dR = iR / dMaxValue;
+ dG = iG / dMaxValue;
+ dB = iB / dMaxValue;
+ v[ix][iy] = colorToGrayscale (dR, dG, dB);
+ }
+ break;
+ }
+ }
+ }
+
+ fclose(fp);
+ return true;
+}
+
+#ifdef HAVE_PNG
+bool
+ImageFile::readImagePNG (const char* const pszFile)
{
- int iFormatID = convertFormatNameToID (pszFormat);
- if (iFormatID == FORMAT_INVALID) {
- sys_error (ERR_SEVERE, "Invalid format %s [ImageFile::exportImage]", pszFormat);
+ FILE* fp = fopen(pszFile, "rb");
+ if (!fp)
+ return false;
+ unsigned char header[8];
+ fread (header, 1, 8, fp);
+ if (png_sig_cmp (header, 0, 8)) {
+ fclose (fp);
+ return false;
+ }
+
+ png_structp png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+ if (!png_ptr) {
+ fclose(fp);
+ return false;
+ }
+
+ png_infop info_ptr = png_create_info_struct(png_ptr);
+ if (!info_ptr) {
+ png_destroy_read_struct(&png_ptr, (png_infopp)NULL, (png_infopp)NULL);
+ fclose(fp);
return false;
}
-
- if (iFormatID == FORMAT_PGM)
+
+ png_infop end_info = png_create_info_struct(png_ptr);
+ if (!end_info) {
+ png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
+ fclose(fp);
+ return false;
+ }
+
+ if (setjmp(png_ptr->jmpbuf)) {
+ png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
+ fclose(fp);
+ return false;
+ }
+
+ png_init_io(png_ptr, fp);
+ png_set_sig_bytes(png_ptr, 8);
+ png_read_info(png_ptr, info_ptr);
+
+ int width = png_get_image_width (png_ptr, info_ptr);
+ int height = png_get_image_height (png_ptr, info_ptr);
+ int bit_depth = png_get_bit_depth (png_ptr, info_ptr);
+ int color_type = png_get_color_type (png_ptr, info_ptr);
+
+ if (color_type == PNG_COLOR_TYPE_PALETTE && bit_depth <= 8)
+ png_set_expand(png_ptr);
+
+ if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
+ png_set_expand(png_ptr);
+
+ if (bit_depth < 8)
+ png_set_packing(png_ptr);
+
+ if (color_type & PNG_COLOR_MASK_ALPHA)
+ png_set_strip_alpha(png_ptr);
+
+ if (bit_depth == 16)
+ png_set_swap(png_ptr); // convert to little-endian format
+
+ png_read_update_info(png_ptr, info_ptr); // update with transformations
+ int rowbytes = png_get_rowbytes (png_ptr, info_ptr);
+ bit_depth = png_get_bit_depth (png_ptr, info_ptr);
+ color_type = png_get_color_type (png_ptr, info_ptr);
+
+ png_bytep* row_pointers = new png_bytep [height];
+ int i;
+ for (i = 0; i < height; i++)
+ row_pointers[i] = new unsigned char [rowbytes];
+
+ png_read_image(png_ptr, row_pointers);
+
+ setArraySize (width, height);
+ ImageFileArray v = getArray();
+ for (int iy = 0; iy < height; iy++) {
+ for (int ix = 0; ix < width; ix++) {
+ double dV = 0;
+ if (color_type == PNG_COLOR_TYPE_GRAY) {
+ if (bit_depth == 8)
+ dV = row_pointers[iy][ix] / 255.;
+ else if (bit_depth == 16) {
+ int iBase = ix * 2;
+ dV = (row_pointers[iy][iBase] + (row_pointers[iy][iBase+1] << 8)) / 65536.;
+ } else
+ dV = 0;
+ } else if (color_type == PNG_COLOR_TYPE_RGB) {
+ if (bit_depth == 8) {
+ int iBase = ix * 3;
+ double dR = row_pointers[iy][iBase] / 255.;
+ double dG = row_pointers[iy][iBase+1] / 255.;
+ double dB = row_pointers[iy][iBase+2] / 255.;
+ dV = colorToGrayscale (dR, dG, dB);
+ } else
+ dV = 0;
+ }
+ v[ix][height-iy-1] = dV;
+ }
+ }
+
+ png_read_end(png_ptr, end_info);
+ png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
+
+ for (i = 0; i < height; i++)
+ delete row_pointers[i];
+ delete row_pointers;
+
+ fclose (fp);
+ return true;
+}
+#endif
+
+bool
+ImageFile::exportImage (const char* const pszFormat, const char* const pszFilename, int nxcell, int nycell, double densmin, double densmax)
+{
+ int iFormatID = convertExportFormatNameToID (pszFormat);
+
+ if (iFormatID == EXPORT_FORMAT_PGM)
return writeImagePGM (pszFilename, nxcell, nycell, densmin, densmax);
- else if (iFormatID == FORMAT_PGMASCII)
+ else if (iFormatID == EXPORT_FORMAT_PGMASCII)
return writeImagePGMASCII (pszFilename, nxcell, nycell, densmin, densmax);
- else if (iFormatID == FORMAT_PNG)
+ else if (iFormatID == EXPORT_FORMAT_TEXT)
+ return writeImageText (pszFilename);
+#ifdef HAVE_PNG
+ else if (iFormatID == EXPORT_FORMAT_PNG)
return writeImagePNG (pszFilename, 8, nxcell, nycell, densmin, densmax);
- else if (iFormatID == FORMAT_PNG16)
+ else if (iFormatID == EXPORT_FORMAT_PNG16)
return writeImagePNG (pszFilename, 16, nxcell, nycell, densmin, densmax);
-
+#endif
+#ifdef HAVE_CTN_DICOM
+ else if (iFormatID == EXPORT_FORMAT_DICOM) {
+ DicomExporter dicomExport (this);
+ bool bSuccess = dicomExport.writeFile (pszFilename);
+ if (! bSuccess)
+ sys_error (ERR_SEVERE, dicomExport.failMessage().c_str());
+ return bSuccess;
+ }
+#endif
+ else if (iFormatID == EXPORT_FORMAT_RAW)
+ return writeImageRaw(pszFilename, nxcell, nycell);
+
+
sys_error (ERR_SEVERE, "Invalid format %s [ImageFile::exportImage]", pszFormat);
return false;
}
+
bool
ImageFile::writeImagePGM (const char* const outfile, int nxcell, int nycell, double densmin, double densmax)
{
int nx = m_nx;
int ny = m_ny;
ImageFileArray v = getArray();
-
+
unsigned char* rowp = new unsigned char [nx * nxcell];
-
+
if ((fp = fopen (outfile, "wb")) == NULL)
return false;
-
+
fprintf(fp, "P5\n");
fprintf(fp, "%d %d\n", nx, ny);
fprintf(fp, "255\n");
-
+
for (int irow = ny - 1; irow >= 0; irow--) {
for (int icol = 0; icol < nx; icol++) {
int pos = icol * nxcell;
}
}
for (int ir = 0; ir < nycell; ir++) {
- for (int ic = 0; ic < nx * nxcell; ic++)
+ for (int ic = 0; ic < nx * nxcell; ic++)
fputc( rowp[ic], fp );
}
}
-
+
delete rowp;
fclose(fp);
-
+
return true;
}
int nx = m_nx;
int ny = m_ny;
ImageFileArray v = getArray();
-
+
unsigned char* rowp = new unsigned char [nx * nxcell];
-
+
if ((fp = fopen (outfile, "wb")) == NULL)
return false;
-
+
fprintf(fp, "P2\n");
fprintf(fp, "%d %d\n", nx, ny);
fprintf(fp, "255\n");
-
+
for (int irow = ny - 1; irow >= 0; irow--) {
for (int icol = 0; icol < nx; icol++) {
int pos = icol * nxcell;
}
}
for (int ir = 0; ir < nycell; ir++) {
- for (int ic = 0; ic < nx * nxcell; ic++)
+ for (int ic = 0; ic < nx * nxcell; ic++)
fprintf(fp, "%d ", rowp[ic]);
fprintf(fp, "\n");
}
}
-
+
delete rowp;
fclose(fp);
-
+
+ return true;
+}
+
+bool
+ImageFile::writeImageText (const char* const outfile)
+{
+ FILE *fp;
+ int nx = m_nx;
+ int ny = m_ny;
+ ImageFileArray v = getArray();
+ ImageFileArray vImag = getImaginaryArray();
+
+ if ((fp = fopen (outfile, "w")) == NULL)
+ return false;
+
+ for (int irow = ny - 1; irow >= 0; irow--) {
+ for (int icol = 0; icol < nx; icol++) {
+ if (isComplex()) {
+ if (vImag[icol][irow] >= 0)
+ fprintf (fp, "%.9g+%.9gi ", v[icol][irow], vImag[icol][irow]);
+ else
+ fprintf (fp, "%.9g-%.9gi ", v[icol][irow], -vImag[icol][irow]);
+ } else
+ fprintf (fp, "%12.8g ", v[icol][irow]);
+ }
+ fprintf(fp, "\n");
+ }
+
+ fclose(fp);
+
return true;
}
int nx = m_nx;
int ny = m_ny;
ImageFileArray v = getArray();
-
+
unsigned char* rowp = new unsigned char [nx * nxcell * (bitdepth / 8)];
-
+
FILE *fp = fopen (outfile, "wb");
if (! fp)
return false;
-
+
png_structp png_ptr = png_create_write_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (! png_ptr)
return false;
-
+
png_infop info_ptr = png_create_info_struct (png_ptr);
if (! info_ptr) {
png_destroy_write_struct (&png_ptr, (png_infopp) NULL);
fclose (fp);
return false;
}
-
+
if (setjmp (png_ptr->jmpbuf)) {
png_destroy_write_struct (&png_ptr, &info_ptr);
fclose (fp);
return false;
}
-
+
png_init_io(png_ptr, fp);
-
- png_set_IHDR (png_ptr, info_ptr, nx * nxcell, ny * nycell, bitdepth, PNG_COLOR_TYPE_GRAY, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_DEFAULT);
-
+
+ png_set_IHDR (png_ptr, info_ptr, nx * nxcell, ny * nycell, bitdepth, PNG_COLOR_TYPE_GRAY, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
+
png_write_info(png_ptr, info_ptr);
for (int irow = ny - 1; irow >= 0; irow--) {
png_bytep row_pointer = rowp;
-
+
for (int icol = 0; icol < nx; icol++) {
int pos = icol * nxcell;
double dens = (v[icol][irow] - densmin) / (densmax - densmin);
dens = clamp (dens, 0., 1.);
unsigned int outval = static_cast<unsigned int> (dens * max_out_level);
-
+
for (int p = pos; p < pos + nxcell; p++) {
if (bitdepth == 8)
rowp[p] = outval;
for (int ir = 0; ir < nycell; ir++)
png_write_rows (png_ptr, &row_pointer, 1);
}
-
+
png_write_end (png_ptr, info_ptr);
png_destroy_write_struct (&png_ptr, &info_ptr);
delete rowp;
-
+
fclose(fp);
-
+
return true;
}
#endif
int nx = m_nx;
int ny = m_ny;
ImageFileArray v = getArray();
-
+
unsigned char* rowp = new unsigned char [nx * nxcell];
-
+
gdImagePtr gif = gdImageCreate(nx * nxcell, ny * nycell);
for (int i = 0; i < N_GRAYSCALE; i++)
gs_indices[i] = gdImageColorAllocate(gif, i, i, i);
-
+
int lastrow = ny * nycell - 1;
for (int irow = 0; irow < ny; irow++) {
int rpos = irow * nycell;
}
}
}
-
+
FILE *out;
if ((out = fopen (outfile,"w")) == NULL) {
sys_error(ERR_SEVERE, "Error opening output file %s for writing", outfile);
gdImageGif(gif,out);
fclose(out);
gdImageDestroy(gif);
-
+
delete rowp;
-
+
return true;
}
#endif
+bool
+ImageFile::writeImageRaw (const char* const outfile, int nxcell, int nycell)
+{
+ FILE *fp;
+ int nx = m_nx;
+ int ny = m_ny;
+ ImageFileArray v = getArray();
+
+ if ((fp = fopen (outfile, "wb")) == NULL)
+ return false;
+
+ for (int irow = ny - 1; irow >= 0; irow--) {
+ for (int icol = 0; icol < nx; icol++) {
+ float dens = v[icol][irow];
+ fwrite(&dens, sizeof(float), 1, fp);
+ }
+ }
+
+ fclose(fp);
+ return true;
+}
+
+
projects / ctsim.git / blobdiff