Technical Discussions related to Image Processing (image coding, compression, digital effects, mpeg, etc)
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snehamoyc - Mar 11 2009
I am working on image interpolation using wavelet transformation. I am doing one level wavelet transformation of my data and interpolating all 4 sub bands and inverse transfor...
Emilio_Díaz - Mar 6 2009
I'm working on masks (prewitt, sobel, mean, etc) with the CImg library. Right now I can apply masks quite well, and I have a question about the next "natural" step.
ac.a...@gmail.com - Mar 6 2009
I am performing a project to enhance underwater images.
Predominantly in such pictures, the blue color seems to envelop the image.
I have referred a few texts and found...
marc...@gmail.com - Mar 5 2009
question about gaussian kernel.
take an image 512x512. Does the gaussian filter size (usually and odd size), depend on the standard deviation of the filter?
fido...@gmail.com - Feb 27 2009
I am trying to write code for difference of Gaussian using Run Length Encoding for edge detection. Please can somebody refer me to any code (website link). I'll use th...
kian...@live.co.uk - Feb 25 2009
my project for master Eng. involves image masking. it uses A mask of size 8x8. i wish to make the masking process faster(if possible).
with this mask I need 64 MAC per poi...
mtor...@gmail.com - Feb 23 2009
I have a confusion related to the concept of use of layring in tier 2 EBCOT in JPEG2000. What I know is that multiple layyers are used for progression by SNR. If we a...
zarrar javaid - Feb 20 2009
There is an interesting thing I observed when I take inverse of fft2() by using ifft2() function it only gives me edges of image cameraman.jpg and a white screen for ima...
marcoscipioni1 - Feb 20 2009
question about DFT amplitudes:
in matlab, if I fft2 an image (NxN), how do I get the correct
amplitude for the frequency components? Do I need to divide by N^2?...
rech...@consolidated.net - Feb 19 2009
I'm new to using FFTw but have experience with other FFT routines.
My questions about FFTw software are:
In this call planForward = fftw_plan_dft_r2c_2d ( iyLeng, ixLeng, ...