Great work. I really like the excellent performance of your code.

However I have two questions concerning the function “stereo.m”:

1) In line 59
“pd = shift_image(pixel_dsp,5); %– shift to match i1”
the disparity map is shifted by 5 pixel. As far as I understood the disparity map should already be aligned according to image i1. So why does one still need to shift the disparity map?

2) The subfunction “function I = shift_image(I,shift)” (line 98) does not shift the image for a parameter setting of shift=1. In fact it provides the same result as shift=0. Does the subfunction need some modification?

I hope you have some time to take a look at my questions.

Thanks for your help

May I ask you why there are many wrong small regions at the top right of tsukuba image and can you guess any method to just conceal these errors?
Thanks

@Joseph: The original EDISON code is actually poorly written. It can get a bit obfuscated. However, the labelling is actually not too bad. Once the mean shift segmentation algorithm finishes, be sure to save all of the centroids for each cluster that has been identified. Once you’ve identified all of the centroids, look for points where the joint Euclidean distance (both colour and distance to the centroid) is less than some number (I chose 0.5). If a point’s distance is less than this amount, it belongs to that cluster. Basically, use a loop, have a variable that stores a centroid at a particular iteration, then loop through all points in the image and check to see if points are close to the centroid in question. This brute force technique takes a very long time, so the EDISON authors use efficient nearest neighbour techniques to decrease the amount of time that this executes.

Hope this helps,
- Ray.

I look forward to hearing from you soon

thanks for your help.

Can you tell me how can I compile with 64 bits so that the code is running?

Because when I try to run “demo”, I have this error :

??? Undefined function or method ‘edison_wrapper_mex’ for input arguments of type ‘struct’.

Error in ==> edison_wrapper at 64
[fimage labels modes regSize grad conf] = edison_wrapper_mex(fim, rgbim, p);

Error in ==> msseg at 42
[fimg labels modes regsize grad conf] = edison_wrapper(I,@RGB2Luv, …

Error in ==> total_stereo at 58
[segs labels] = msseg(i1,hs,hr,M); %– mean shift segmentation

Error in ==> demo at 16
[d p s l] = total_stereo(i1,i2, hs,hr,M,mins, maxs);

And when I run “compile_edison_wrapper”
I have this error:

C:\PROGRA~1\MATLAB\R2009A\BIN\MEX.PL: Error: ‘edison_wrapper_mex.cpp’ not found.

??? Error using ==> mex at 218
Unable to complete successfully.

Error in ==> compile_edison_wrapper at 5
mex -O edison_wrapper_mex.cpp …

I don’t know what I must change here

mex -O edison_wrapper_mex.cpp …
segm/ms.cpp segm/msImageProcessor.cpp segm/msSysPrompt.cpp segm/RAList.cpp segm/rlist.cpp …
edge/BgEdge.cpp edge/BgImage.cpp edge/BgGlobalFc.cpp edge/BgEdgeList.cpp edge/BgEdgeDetect.cpp
fprintf(1, ‘Done edison_wraper compilation\n’);

so that the code run with 64 bits !!!!!!!!!!!

Thanks for your help.