+\r
+bool\r
+ImageFile::convertRealToComplex ()\r
+{\r
+ if (dataType() != Array2dFile::DATA_TYPE_REAL)\r
+ return false;\r
+ \r
+ if (! reallocRealToComplex())\r
+ return false;\r
+ \r
+ ImageFileArray vImag = getImaginaryArray();\r
+ for (unsigned int ix = 0; ix < m_nx; ix++) {\r
+ ImageFileColumn vCol = vImag[ix];\r
+ for (unsigned int iy = 0; iy < m_ny; iy++)\r
+ *vCol++ = 0;\r
+ }\r
+ \r
+ return true;\r
+}\r
+\r
+bool\r
+ImageFile::convertComplexToReal ()\r
+{\r
+ if (dataType() != Array2dFile::DATA_TYPE_COMPLEX)\r
+ return false;\r
+ \r
+ ImageFileArray vReal = getArray();\r
+ ImageFileArray vImag = getImaginaryArray();\r
+ for (unsigned int ix = 0; ix < m_nx; ix++) {\r
+ ImageFileColumn vRealCol = vReal[ix];\r
+ ImageFileColumn vImagCol = vImag[ix];\r
+ for (unsigned int iy = 0; iy < m_ny; iy++) {\r
+ CTSimComplex c (*vRealCol, *vImagCol);\r
+ *vRealCol++ = std::abs (c);\r
+ vImagCol++;\r
+ }\r
+ }\r
+ \r
+ return reallocComplexToReal();\r
+}\r
+\r
+bool\r
+ImageFile::subtractImages (const ImageFile& rRHS, ImageFile& result) const\r
+{\r
+ if (m_nx != rRHS.nx() || m_ny != rRHS.ny() || m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::subtractImage]");\r
+ return false;\r
+ }\r
+ \r
+ if (isComplex() || rRHS.isComplex() && ! result.isComplex())\r
+ result.convertRealToComplex();\r
+ \r
+ ImageFileArrayConst vLHS = getArray();\r
+ ImageFileArrayConst vLHSImag = getImaginaryArray();\r
+ ImageFileArrayConst vRHS = rRHS.getArray();\r
+ ImageFileArrayConst vRHSImag = rRHS.getImaginaryArray();\r
+ ImageFileArray vResult = result.getArray();\r
+ ImageFileArray vResultImag = result.getImaginaryArray();\r
+ \r
+ for (unsigned int ix = 0; ix < m_nx; ix++) {\r
+ for (unsigned int iy = 0; iy < m_ny; iy++) {\r
+ vResult[ix][iy] = vLHS[ix][iy] - vRHS[ix][iy];\r
+ if (result.isComplex()) {\r
+ vResultImag[ix][iy] = 0;\r
+ if (isComplex())\r
+ vResultImag[ix][iy] += vLHSImag[ix][iy];\r
+ if (rRHS.isComplex())\r
+ vResultImag[ix][iy] -= vRHSImag[ix][iy];\r
+ }\r
+ }\r
+ }\r
+ \r
+ return true;\r
+}\r
+
+bool\r
+ImageFile::addImages (const ImageFile& rRHS, ImageFile& result) const\r
+{\r
+ if (m_nx != rRHS.nx() || m_ny != rRHS.ny() || m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::subtractImage]");\r
+ return false;\r
+ }\r
+ \r
+ if (isComplex() || rRHS.isComplex() && ! result.isComplex())\r
+ result.convertRealToComplex();\r
+ \r
+ ImageFileArrayConst vLHS = getArray();\r
+ ImageFileArrayConst vLHSImag = getImaginaryArray();\r
+ ImageFileArrayConst vRHS = rRHS.getArray();\r
+ ImageFileArrayConst vRHSImag = rRHS.getImaginaryArray();\r
+ ImageFileArray vResult = result.getArray();\r
+ ImageFileArray vResultImag = result.getImaginaryArray();\r
+ \r
+ for (unsigned int ix = 0; ix < m_nx; ix++) {\r
+ for (unsigned int iy = 0; iy < m_ny; iy++) {\r
+ vResult[ix][iy] = vLHS[ix][iy] + vRHS[ix][iy];\r
+ if (result.isComplex()) {\r
+ vResultImag[ix][iy] = 0;\r
+ if (isComplex())\r
+ vResultImag[ix][iy] += vLHSImag[ix][iy];\r
+ if (rRHS.isComplex())\r
+ vResultImag[ix][iy] += vRHSImag[ix][iy];\r
+ }\r
+ }\r
+ }\r
+ \r
+ return true;\r
+}\r
+\r
+bool\r
+ImageFile::multiplyImages (const ImageFile& rRHS, ImageFile& result) const\r
+{\r
+ if (m_nx != rRHS.nx() || m_ny != rRHS.ny() || m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::subtractImage]");\r
+ return false;\r
+ }\r
+ \r
+ if (isComplex() || rRHS.isComplex() && ! result.isComplex())\r
+ result.convertRealToComplex();\r
+ \r
+ ImageFileArrayConst vLHS = getArray();\r
+ ImageFileArrayConst vLHSImag = getImaginaryArray();\r
+ ImageFileArrayConst vRHS = rRHS.getArray();\r
+ ImageFileArrayConst vRHSImag = rRHS.getImaginaryArray();\r
+ ImageFileArray vResult = result.getArray();\r
+ ImageFileArray vResultImag = result.getImaginaryArray();\r
+ \r
+ for (unsigned int ix = 0; ix < m_nx; ix++) {\r
+ for (unsigned int iy = 0; iy < m_ny; iy++) {\r
+ if (result.isComplex()) {\r
+ double dImag = 0;\r
+ if (isComplex())\r
+ dImag = vLHSImag[ix][iy];\r
+ std::complex<double> cLHS (vLHS[ix][iy], dImag);\r
+ dImag = 0;\r
+ if (rRHS.isComplex())\r
+ dImag = vRHSImag[ix][iy];\r
+ std::complex<double> cRHS (vRHS[ix][iy], dImag);\r
+ std::complex<double> cResult = cLHS * cRHS;\r
+ vResult[ix][iy] = cResult.real();\r
+ vResultImag[ix][iy] = cResult.imag();\r
+ } else\r
+ vResult[ix][iy] = vLHS[ix][iy] * vRHS[ix][iy];\r
+ }\r
+ }\r
+ \r
+ \r
+ return true;\r
+}\r
+\r
+bool\r
+ImageFile::divideImages (const ImageFile& rRHS, ImageFile& result) const\r
+{\r
+ if (m_nx != rRHS.nx() || m_ny != rRHS.ny() || m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::subtractImage]");\r
+ return false;\r
+ }\r
+ \r
+ if (isComplex() || rRHS.isComplex() && ! result.isComplex())\r
+ result.convertRealToComplex();\r
+ \r
+ ImageFileArrayConst vLHS = getArray();\r
+ ImageFileArrayConst vLHSImag = getImaginaryArray();\r
+ ImageFileArrayConst vRHS = rRHS.getArray();\r
+ ImageFileArrayConst vRHSImag = rRHS.getImaginaryArray();\r
+ ImageFileArray vResult = result.getArray();\r
+ ImageFileArray vResultImag = result.getImaginaryArray();\r
+ \r
+ for (unsigned int ix = 0; ix < m_nx; ix++) {\r
+ for (unsigned int iy = 0; iy < m_ny; iy++) {\r
+ if (result.isComplex()) {\r
+ double dImag = 0;\r
+ if (isComplex())\r
+ dImag = vLHSImag[ix][iy];\r
+ std::complex<double> cLHS (vLHS[ix][iy], dImag);\r
+ dImag = 0;\r
+ if (rRHS.isComplex())\r
+ dImag = vRHSImag[ix][iy];\r
+ std::complex<double> cRHS (vRHS[ix][iy], dImag);\r
+ std::complex<double> cResult = cLHS / cRHS;\r
+ vResult[ix][iy] = cResult.real();\r
+ vResultImag[ix][iy] = cResult.imag();\r
+ } else {\r
+ if (vRHS != 0)\r
+ vResult[ix][iy] = vLHS[ix][iy] / vRHS[ix][iy];\r
+ else\r
+ vResult[ix][iy] = 0;\r
+ }\r
+ }\r
+ }\r
+ \r
+ return true;\r
+}\r
+\r
+\r
+bool\r
+ImageFile::invertPixelValues (ImageFile& result) const\r
+{\r
+ if (m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");\r
+ return false;\r
+ }\r
+ \r
+ if (isComplex() && ! result.isComplex())\r
+ result.convertRealToComplex();\r
+ \r
+ ImageFileArrayConst vLHS = getArray();\r
+ ImageFileArray vResult = result.getArray();\r
+ \r
+ for (unsigned int ix = 0; ix < m_nx; ix++) {\r
+ ImageFileColumnConst in = vLHS[ix];\r
+ ImageFileColumn out = vResult[ix];\r
+ for (unsigned int iy = 0; iy < m_ny; iy++)\r
+ *out++ = - *in++;\r
+ }\r
+ \r
+ return true;\r
+}\r
+\r
+bool\r
+ImageFile::sqrt (ImageFile& result) const\r
+{\r
+ if (m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");\r
+ return false;\r
+ }\r
+ \r
+ if (isComplex() && ! result.isComplex())\r
+ result.convertRealToComplex();\r
+ \r
+ bool bComplexOutput = result.isComplex();\r
+ ImageFileArrayConst vLHS = getArray();\r
+ if (! bComplexOutput) // check if should convert to complex output\r
+ for (unsigned int ix = 0; ix < m_nx; ix++)\r
+ for (unsigned int iy = 0; iy < m_ny; iy++)\r
+ if (! bComplexOutput && vLHS[ix][iy] < 0) {\r
+ result.convertRealToComplex();\r
+ bComplexOutput = true;\r
+ break;\r
+ }\r
+ \r
+ ImageFileArrayConst vLHSImag = getImaginaryArray();\r
+ ImageFileArray vResult = result.getArray();\r
+ ImageFileArray vResultImag = result.getImaginaryArray();\r
+ \r
+ for (unsigned int ix = 0; ix < m_nx; ix++) {\r
+ for (unsigned int iy = 0; iy < m_ny; iy++) {\r
+ if (result.isComplex()) {\r
+ double dImag = 0;\r
+ if (isComplex())\r
+ dImag = vLHSImag[ix][iy];\r
+ std::complex<double> cLHS (vLHS[ix][iy], dImag);\r
+ std::complex<double> cResult = std::sqrt(cLHS);\r
+ vResult[ix][iy] = cResult.real();\r
+ vResultImag[ix][iy] = cResult.imag();\r
+ } else\r
+ vResult[ix][iy] = ::sqrt (vLHS[ix][iy]);\r
+ }\r
+ }\r
+ \r
+ \r
+ return true;\r
+}\r
+\r
+bool\r
+ImageFile::log (ImageFile& result) const\r
+{\r
+ if (m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");\r
+ return false;\r
+ }\r
+ \r
+ if (isComplex() && ! result.isComplex())\r
+ result.convertRealToComplex();\r
+ \r
+ ImageFileArrayConst vLHS = getArray();\r
+ ImageFileArrayConst vLHSImag = getImaginaryArray();\r
+ ImageFileArray vResult = result.getArray();\r
+ ImageFileArray vResultImag = result.getImaginaryArray();\r
+ \r
+ for (unsigned int ix = 0; ix < m_nx; ix++) {\r
+ for (unsigned int iy = 0; iy < m_ny; iy++) {\r
+ if (result.isComplex()) {\r
+ double dImag = 0;\r
+ if (isComplex())\r
+ dImag = vLHSImag[ix][iy];\r
+ std::complex<double> cLHS (vLHS[ix][iy], dImag);\r
+ std::complex<double> cResult = std::log (cLHS);\r
+ vResult[ix][iy] = cResult.real();\r
+ vResultImag[ix][iy] = cResult.imag();\r
+ } else\r
+ vResult[ix][iy] = ::log (vLHS[ix][iy]);\r
+ }\r
+ }\r
+ \r
+ \r
+ return true;\r
+}\r
+\r
+bool\r
+ImageFile::exp (ImageFile& result) const\r
+{\r
+ if (m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");\r
+ return false;\r
+ }\r
+ \r
+ if (isComplex() && ! result.isComplex())\r
+ result.convertRealToComplex();\r
+ \r
+ ImageFileArrayConst vLHS = getArray();\r
+ ImageFileArrayConst vLHSImag = getImaginaryArray();\r
+ ImageFileArray vResult = result.getArray();\r
+ ImageFileArray vResultImag = result.getImaginaryArray();\r
+ \r
+ for (unsigned int ix = 0; ix < m_nx; ix++) {\r
+ for (unsigned int iy = 0; iy < m_ny; iy++) {\r
+ if (result.isComplex()) {\r
+ double dImag = 0;\r
+ if (isComplex())\r
+ dImag = vLHSImag[ix][iy];\r
+ std::complex<double> cLHS (vLHS[ix][iy], dImag);\r
+ std::complex<double> cResult = std::exp (cLHS);\r
+ vResult[ix][iy] = cResult.real();\r
+ vResultImag[ix][iy] = cResult.imag();\r
+ } else\r
+ vResult[ix][iy] = ::exp (vLHS[ix][iy]);\r
+ }\r
+ }\r
+ \r
+ \r
+ return true;\r
+}\r
+\r
+bool\r
+ImageFile::scaleImage (ImageFile& result) const\r
+{\r
+ unsigned int nx = m_nx;\r
+ unsigned int ny = m_ny;\r
+ unsigned int newNX = result.nx();\r
+ unsigned int newNY = result.ny();\r
+ \r
+ double dXScale = static_cast<double>(newNX) / static_cast<double>(nx);\r
+ double dYScale = static_cast<double>(newNY) / static_cast<double>(ny);\r
+ \r
+ if (isComplex() && ! result.isComplex())\r
+ result.convertRealToComplex();\r
+ \r
+ ImageFileArrayConst vReal = getArray();\r
+ ImageFileArrayConst vImag = getImaginaryArray();\r
+ ImageFileArray vResult = result.getArray();\r
+ ImageFileArray vResultImag = result.getImaginaryArray();\r
+ \r
+ for (unsigned int ix = 0; ix < newNX; ix++) {\r
+ for (unsigned int iy = 0; iy < newNY; iy++) {\r
+ double dXPos = ix / dXScale;\r
+ double dYPos = iy / dYScale;\r
+ unsigned int scaleNX = static_cast<unsigned int> (dXPos);\r
+ unsigned int scaleNY = static_cast<unsigned int> (dYPos);\r
+ double dXFrac = dXPos - scaleNX;\r
+ double dYFrac = dYPos - scaleNY;\r
+ if (scaleNX >= nx - 1 || scaleNY >= ny - 1) {\r
+ vResult[ix][iy] = vReal[scaleNX][scaleNY];\r
+ if (result.isComplex()) {\r
+ if (isComplex())\r
+ vResultImag[ix][iy] = vImag[scaleNX][scaleNY];\r
+ else\r
+ vResultImag[ix][iy] = 0;\r
+ }\r
+ } else {\r
+ vResult[ix][iy] = vReal[scaleNX][scaleNY] + \r
+ dXFrac * (vReal[scaleNX+1][scaleNY] - vReal[scaleNX][scaleNY]) + \r
+ dYFrac * (vReal[scaleNX][scaleNY+1] - vReal[scaleNX][scaleNY]);\r
+ if (result.isComplex()) {\r
+ if (isComplex())\r
+ vResultImag[ix][iy] = vImag[scaleNX][scaleNY] + \r
+ dXFrac * (vImag[scaleNX+1][scaleNY] - vImag[scaleNX][scaleNY]) + \r
+ dYFrac * (vImag[scaleNX][scaleNY+1] - vImag[scaleNX][scaleNY]);\r
+ else\r
+ vResultImag[ix][iy] = 0;\r
+ }\r
+ }\r
+ }\r
+ }\r
+ \r
+ return true;\r
+}\r
+\r
+#ifdef HAVE_FFTW\r
+bool\r
+ImageFile::fft (ImageFile& result) const\r
+{\r
+ if (m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");\r
+ return false;\r
+ }\r
+ \r
+ if (result.dataType() == Array2dFile::DATA_TYPE_REAL) {\r
+ if (! result.convertRealToComplex ())\r
+ return false;\r
+ }\r
+ \r
+ fftw_complex* in = new fftw_complex [m_nx * m_ny];\r
+ \r
+ ImageFileArrayConst vReal = getArray();\r
+ ImageFileArrayConst vImag = getImaginaryArray();\r
+ \r
+ unsigned int ix, iy;\r
+ unsigned int iArray = 0;\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ in[iArray].re = vReal[ix][iy];\r
+ if (isComplex())\r
+ in[iArray].im = vImag[ix][iy];\r
+ else\r
+ in[iArray].im = 0;\r
+ iArray++;\r
+ }\r
+ \r
+ fftwnd_plan plan = fftw2d_create_plan (m_nx, m_ny, FFTW_FORWARD, FFTW_IN_PLACE);\r
+ \r
+ fftwnd_one (plan, in, NULL);\r
+ \r
+ ImageFileArray vRealResult = result.getArray();\r
+ ImageFileArray vImagResult = result.getImaginaryArray();\r
+ iArray = 0;\r
+ unsigned int iScale = m_nx * m_ny;\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ vRealResult[ix][iy] = in[iArray].re / iScale;\r
+ vImagResult[ix][iy] = in[iArray].im / iScale;\r
+ iArray++;\r
+ }\r
+ \r
+ fftwnd_destroy_plan (plan);\r
+ delete in;\r
+ \r
+ \r
+ Fourier::shuffleFourierToNaturalOrder (result);\r
+ \r
+ return true;\r
+}\r
+\r
+\r
+bool\r
+ImageFile::ifft (ImageFile& result) const\r
+{\r
+ if (m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");\r
+ return false;\r
+ }\r
+ \r
+ if (result.dataType() == Array2dFile::DATA_TYPE_REAL) {\r
+ if (! result.convertRealToComplex ())\r
+ return false;\r
+ }\r
+ \r
+ ImageFileArrayConst vReal = getArray();\r
+ ImageFileArrayConst vImag = getImaginaryArray();\r
+ ImageFileArray vRealResult = result.getArray();\r
+ ImageFileArray vImagResult = result.getImaginaryArray();\r
+ unsigned int ix, iy;\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ vRealResult[ix][iy] = vReal[ix][iy];\r
+ if (isComplex()) \r
+ vImagResult[ix][iy] = vImag[ix][iy];\r
+ else\r
+ vImagResult[ix][iy] = 0;\r
+ }\r
+ \r
+ Fourier::shuffleNaturalToFourierOrder (result);\r
+ \r
+ fftw_complex* in = new fftw_complex [m_nx * m_ny];\r
+ \r
+ unsigned int iArray = 0;\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ in[iArray].re = vRealResult[ix][iy];\r
+ in[iArray].im = vImagResult[ix][iy];\r
+ iArray++;\r
+ }\r
+ \r
+ fftwnd_plan plan = fftw2d_create_plan (m_nx, m_ny, FFTW_BACKWARD, FFTW_IN_PLACE);\r
+ \r
+ fftwnd_one (plan, in, NULL);\r
+ \r
+ iArray = 0;\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ vRealResult[ix][iy] = in[iArray].re;\r
+ vImagResult[ix][iy] = in[iArray].im;\r
+ iArray++;\r
+ }\r
+ \r
+ fftwnd_destroy_plan (plan);\r
+ \r
+ delete in;\r
+ \r
+ return true;\r
+}\r
+#endif // HAVE_FFTW\r
+\r
+\r
+\r
+bool\r
+ImageFile::fourier (ImageFile& result) const\r
+{\r
+ if (m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");\r
+ return false;\r
+ }\r
+ \r
+ if (! result.isComplex())\r
+ if (! result.convertRealToComplex ())\r
+ return false;\r
+ \r
+ ImageFileArrayConst vLHS = getArray();\r
+ ImageFileArrayConst vLHSImag = getImaginaryArray();\r
+ ImageFileArray vRealResult = result.getArray();\r
+ ImageFileArray vImagResult = result.getImaginaryArray();\r
+ \r
+ unsigned int ix, iy;\r
+ \r
+ // alloc output matrix\r
+ CTSimComplex** complexOut = new CTSimComplex* [m_nx];\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ complexOut[ix] = new CTSimComplex [m_ny];\r
+ \r
+ // fourier each x column\r
+#if 1\r
+ CTSimComplex* pY = new CTSimComplex [m_ny];\r
+ for (ix = 0; ix < m_nx; ix++) {\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ double dImag = 0;\r
+ if (isComplex())\r
+ dImag = vLHSImag[ix][iy];\r
+ pY[iy] = complex<double>(vLHS[ix][iy], dImag);\r
+ } \r
+ ProcessSignal::finiteFourierTransform (pY, complexOut[ix], m_ny, ProcessSignal::FORWARD);\r
+ }\r
+#else\r
+ double* pY = new double [m_ny];\r
+ for (ix = 0; ix < m_nx; ix++) {\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ pY[iy] = vLHS[ix][iy];\r
+ } \r
+ ProcessSignal::finiteFourierTransform (pY, complexOut[ix], m_ny, ProcessSignal::FORWARD);\r
+ }\r
+#endif\r
+ delete [] pY;\r
+ \r
+ // fourier each y row\r
+ CTSimComplex* pX = new CTSimComplex [m_nx];\r
+ CTSimComplex* complexOutRow = new CTSimComplex [m_nx];\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ pX[ix] = complexOut[ix][iy];\r
+ ProcessSignal::finiteFourierTransform (pX, complexOutRow, m_nx, ProcessSignal::FORWARD);\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ complexOut[ix][iy] = complexOutRow[ix];\r
+ }\r
+ delete [] pX;\r
+ delete [] complexOutRow;\r
+ \r
+ for (ix = 0; ix < m_nx; ix++)\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ vRealResult[ix][iy] = complexOut[ix][iy].real();\r
+ vImagResult[ix][iy] = complexOut[ix][iy].imag();\r
+ }\r
+ \r
+ Fourier::shuffleFourierToNaturalOrder (result);\r
+ \r
+ // delete complexOut matrix\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ delete [] complexOut[ix];\r
+ delete [] complexOut;\r
+ \r
+ return true;\r
+}\r
+\r
+bool\r
+ImageFile::inverseFourier (ImageFile& result) const\r
+{\r
+ if (m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");\r
+ return false;\r
+ }\r
+ \r
+ if (result.dataType() == Array2dFile::DATA_TYPE_REAL) {\r
+ if (! result.convertRealToComplex ())\r
+ return false;\r
+ }\r
+ \r
+ ImageFileArrayConst vLHSReal = getArray();\r
+ ImageFileArrayConst vLHSImag = getImaginaryArray();\r
+ ImageFileArray vRealResult = result.getArray();\r
+ ImageFileArray vImagResult = result.getImaginaryArray();\r
+ \r
+ unsigned int ix, iy;\r
+ // alloc 2d complex output matrix\r
+ CTSimComplex** complexOut = new CTSimComplex* [m_nx];\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ complexOut[ix] = new CTSimComplex [m_ny];\r
+ \r
+ // put input image into result\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ vRealResult[ix][iy] = vLHSReal[ix][iy];\r
+ if (isComplex())\r
+ vImagResult[ix][iy] = vLHSImag[ix][iy];\r
+ else\r
+ vImagResult[ix][iy] = 0;\r
+ }\r
+ \r
+ Fourier::shuffleNaturalToFourierOrder (result);\r
+ \r
+ // ifourier each x column\r
+ CTSimComplex* pCol = new CTSimComplex [m_ny];\r
+ for (ix = 0; ix < m_nx; ix++) {\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ pCol[iy] = std::complex<double> (vRealResult[ix][iy], vImagResult[ix][iy]);\r
+ }\r
+ ProcessSignal::finiteFourierTransform (pCol, complexOut[ix], m_ny, ProcessSignal::BACKWARD);\r
+ }\r
+ delete [] pCol;\r
+ \r
+ // ifourier each y row\r
+ CTSimComplex* complexInRow = new CTSimComplex [m_nx];\r
+ CTSimComplex* complexOutRow = new CTSimComplex [m_nx];\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ complexInRow[ix] = complexOut[ix][iy];\r
+ ProcessSignal::finiteFourierTransform (complexInRow, complexOutRow, m_nx, ProcessSignal::BACKWARD);\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ complexOut[ix][iy] = complexOutRow[ix];\r
+ }\r
+ delete [] complexInRow;\r
+ delete [] complexOutRow;\r
+ \r
+ for (ix = 0; ix < m_nx; ix++)\r
+ for (iy = 0; iy < m_ny; iy++) {\r
+ vRealResult[ix][iy] = complexOut[ix][iy].real();\r
+ vImagResult[ix][iy] = complexOut[ix][iy].imag();\r
+ }\r
+ \r
+ // delete complexOut matrix\r
+ for (ix = 0; ix < m_nx; ix++)\r
+ delete [] complexOut[ix];\r
+ delete [] complexOut;\r
+ \r
+ return true;\r
+}\r
+\r
+\r
+bool\r
+ImageFile::magnitude (ImageFile& result) const\r
+{\r
+ if (m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");\r
+ return false;\r
+ }\r
+ \r
+ ImageFileArray vReal = getArray();\r
+ ImageFileArray vImag = getImaginaryArray();\r
+ ImageFileArray vRealResult = result.getArray();\r
+ \r
+ for (unsigned int ix = 0; ix < m_nx; ix++)\r
+ for (unsigned int iy = 0; iy < m_ny; iy++) {\r
+ if (isComplex()) \r
+ vRealResult[ix][iy] = ::sqrt (vReal[ix][iy] * vReal[ix][iy] + vImag[ix][iy] * vImag[ix][iy]);\r
+ else\r
+ vRealResult[ix][iy] = vReal[ix][iy];\r
+ }\r
+ \r
+ if (result.isComplex())\r
+ result.convertComplexToReal();\r
+ \r
+ return true;\r
+}\r
+\r
+bool\r
+ImageFile::phase (ImageFile& result) const\r
+{\r
+ if (m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");\r
+ return false;\r
+ }\r
+ \r
+ ImageFileArray vReal = getArray();\r
+ ImageFileArray vImag = getImaginaryArray();\r
+ ImageFileArray vRealResult = result.getArray();\r
+ \r
+ for (unsigned int ix = 0; ix < m_nx; ix++)\r
+ for (unsigned int iy = 0; iy < m_ny; iy++) {\r
+ if (isComplex())\r
+ vRealResult[ix][iy] = ::atan2 (vImag[ix][iy], vReal[ix][iy]);\r
+ else\r
+ vRealResult[ix][iy] = 0;\r
+ }\r
+ \r
+ if (result.isComplex())\r
+ result.convertComplexToReal();\r
+ \r
+ return true;\r
+}\r
+\r
+bool\r
+ImageFile::square (ImageFile& result) const\r
+{\r
+ if (m_nx != result.nx() || m_ny != result.ny()) {\r
+ sys_error (ERR_WARNING, "Difference sizes of images [ImageFile::invertPixelValues]");\r
+ return false;\r
+ }\r
+ \r
+ if (isComplex() && ! result.isComplex())\r
+ result.convertRealToComplex();\r
+ \r
+ ImageFileArrayConst vLHS = getArray();\r
+ ImageFileArrayConst vLHSImag = getImaginaryArray();\r
+ ImageFileArray vResult = result.getArray();\r
+ ImageFileArray vResultImag = result.getImaginaryArray();\r
+ \r
+ for (unsigned int ix = 0; ix < m_nx; ix++) {\r
+ for (unsigned int iy = 0; iy < m_ny; iy++) {\r
+ if (result.isComplex()) {\r
+ double dImag = 0;\r
+ if (isComplex())\r
+ dImag = vLHSImag[ix][iy];\r
+ std::complex<double> cLHS (vLHS[ix][iy], dImag);\r
+ std::complex<double> cResult = cLHS * cLHS;\r
+ vResult[ix][iy] = cResult.real();\r
+ vResultImag[ix][iy] = cResult.imag();\r
+ } else\r
+ vResult[ix][iy] = vLHS[ix][iy] * vLHS[ix][iy];\r
+ }\r
+ }\r
+ \r
+ \r
+ return true;\r
+}\r
+\r
+int\r
+ImageFile::convertFormatNameToID (const char* const formatName)\r
+{\r
+ int formatID = FORMAT_INVALID;\r
+ \r
+ for (int i = 0; i < s_iFormatCount; i++)\r
+ if (strcasecmp (formatName, s_aszFormatName[i]) == 0) {\r
+ formatID = i;\r
+ break;\r
+ }\r
+ \r
+ return (formatID);\r
+}\r
+\r
+const char*\r
+ImageFile::convertFormatIDToName (int formatID)\r
+{\r
+ static const char *formatName = "";\r
+ \r
+ if (formatID >= 0 && formatID < s_iFormatCount)\r
+ return (s_aszFormatName[formatID]);\r
+ \r
+ return (formatName);\r
+}\r
+\r
+const char*\r
+ImageFile::convertFormatIDToTitle (const int formatID)\r
+{\r
+ static const char *formatTitle = "";\r
+ \r
+ if (formatID >= 0 && formatID < s_iFormatCount)\r
+ return (s_aszFormatTitle[formatID]);\r
+ \r
+ return (formatTitle);\r
+}\r
+\r
+bool\r
+ImageFile::exportImage (const char* const pszFormat, const char* const pszFilename, int nxcell, int nycell, double densmin, double densmax)\r
+{\r
+ int iFormatID = convertFormatNameToID (pszFormat);\r
+ if (iFormatID == FORMAT_INVALID) {\r
+ sys_error (ERR_SEVERE, "Invalid format %s [ImageFile::exportImage]", pszFormat);\r
+ return false;\r
+ }\r
+ \r
+ if (iFormatID == FORMAT_PGM)\r
+ return writeImagePGM (pszFilename, nxcell, nycell, densmin, densmax);\r
+ else if (iFormatID == FORMAT_PGMASCII)\r
+ return writeImagePGMASCII (pszFilename, nxcell, nycell, densmin, densmax);\r
+ else if (iFormatID == FORMAT_PNG)\r
+ return writeImagePNG (pszFilename, 8, nxcell, nycell, densmin, densmax);\r
+ else if (iFormatID == FORMAT_PNG16)\r
+ return writeImagePNG (pszFilename, 16, nxcell, nycell, densmin, densmax);\r
+ \r
+ sys_error (ERR_SEVERE, "Invalid format %s [ImageFile::exportImage]", pszFormat);\r
+ return false;\r
+}\r
+\r
+bool
+ImageFile::writeImagePGM (const char* const outfile, int nxcell, int nycell, double densmin, double densmax)