Rotation Angle<br>as a multiple of PI: <input type="text" name="PJ_RotAngle" size="3" value="1.0"><br>
</td><td valign="top">
<H3>Image Reconstruction</H3>
+Filter Method:<br>
+<input type="radio" name="IR_FilterMethod" value="convolution" checked>Convolution<br>
+<input type="radio" name="IR_FilterMethod" value="fourier">Fourier<br>
+<input type="radio" name="IR_FilterMethod" value="fourier_table">Fourier Table<br>
+<input type="radio" name="IR_FilterMethod" value="fft">FFT (Fast Fourier)<br>
+<input type="radio" name="IR_FilterMethod" value="fftw">FFTW (Fastest Fourier Library)<br>
+<input type="radio" name="IR_FilterMethod" value="rfftw">RFFTW (Real-mode Fastest Fourier Library)<br>
+<p>
+Zeropad: (frequency-base filtering only)<br>
+<input type="text" name="IR_Zeropad" size="1" value="2"><br>
+<p>
Interpolation:<br>
<input type="radio" name="IR_Interp" value="linear" checked>Linear<br>
<input type="radio" name="IR_Interp" value="nearest">Nearest Neighbor<br>
<input type="radio" name="IR_Backproj" value="table">Trig Table<br>
<input type="radio" name="IR_Backproj" value="diff">Difference<br>
<input type="radio" name="IR_Backproj" value="diff2">Difference Optimized<br>
-<input type="radio" name="IR_Backproj" value="idiff2" checked>Difference Optimized (integer math)<br>
+<input type="radio" name="IR_Backproj" value="idiff2">Difference Optimized (integer math)<br>
+<input type="radio" name="IR_Backproj" value="idiff3" checked>Difference Highly-optimized (integer math)<br>
</td></tr></table>
<p>
<input type="submit" value="Simulate"><input type="reset" value="clear fields">