Farid,
Number of channels (signals?) is specified in line 124:
hdr.ns = str2double(fread(fid,4,'*char')');

In subsequent lines (125,128,132,...) the files reads 1:hdr.ns. If you wanted to, you could modify those calls to read (for example) signals [1,3,5,6,7] by changing instances of

for ii = 1:hdr

to

for ii = [1,3,5:7]

HTH,
Brett

Hisham, Would you either try to download the function again and re-try to read the file, or send me the file you downloaded. I'd like to understand what's going on.
Thanks,
Brett
char(cumsum([98 16 -13 15 0 -70 69 -11 7 -10 7 7 -4 -1 -46 45 -12 19 -12 15 -8 3 -7 8 -69 53 12 -2]))

@rana:
Rana, can you tell me a bit about what you tried? Were you able to establish ROIs in all of the 15 face images? Did you get any helpful messages inside of CascadeTrainGUI when you pressed the 'Train Detector!' button? (BTW, that's an exceptionally small number of images--I wouldn't be too optimistic about the quality of the detector.)

I love this...it's brilliant!

@Nicola:
Thanks, Nicola. I had hoped that using this would be pretty self-explanatory. Can you tell me a bit about what you're having trouble with? (If it's actually training a detector [second tab], note that you'll need to download and install R2013a, and have a license for Computer Vision System Toolbox, to do so.)

@Harsh:
I appreciate your comment, Harsh. (Especially the "superb work" part :) ). I call your attention to my note below; MATLAB R13a is live, and ready for download. I waited until that was true before posting this file.

And if your "how?" refers to "how did I get access to R13a" before it was officially released--I should point out that I work for MathWorks!

Download R13a and start training!

@Geoffrey:
Again, I have the FindCirclesGUI in a state of "waiting for update." I'm sending you a newer version of that, too--should address the problems with that command.

The inverted text problem is, I believe, an openGL rendering issue. Try ecxecuting the command "openGL software" (without the quotes) before you call SegmentTool, and see if that corrects the problem. (What version of MATLAB and of openGL are you using?)

@Amarjot:
In R2009b, we allowed the use of a tilde to ignore unwanted function outputs:

[~,strelButtons,strelSliders] = StrelTool(strel1Parent);

If you're using an earlier version, you should 1) replace the tilde with a dummy variable (like "JUNK"); and 2) update your MATLAB!

Cheers,
Brett

@srinivasarao:
Sorry...not sure what paper you're talking about. This GUI agglomerates many of the morphological operations enabled through the Image Processing Toolbox, and allows interactive manipulation of all of their input parameters. There's no single paper to share.
Brett

I should clarify my previous comment. BWHITMISS does not _require_ two strels, but it does allow a 2-strel syntax.
Brett

Kyle, thanks for the rating. A waitbar is not really practical in this case--there's no for loop. Just an accumulator that runs until it's done. (How long are your calculations taking, though?)

Caleb: I believe that the zip file creates a subdirectory that contains the helper files (including tabPanel). Please either drag them out of that folder, or add the folder to your MATLAB path and try again!

@John:
Thanks for the feedback, John. ImageRegistrationGUI was designed to expose and allow control over every possible input to the new IMREGISTER function, and to show interactively the results of changing those inputs. Internally, IMREGISTER generates a TFORM (which is appropriate for use in a call to IMTRANSFORM, exactly as is a tform generated with CP2TFORM); internally, in fact, IMREGISTER _uses_ IMTRANSFORM. The TFORM structure is not currently provided as an output, but if you modified the syntax of the function, you could easily avail yourself of that TFORM.
The <http://www.mathworks.com/help/releases/R2012a/toolbox/images/f20-14983.html#f20-23425 CPSELECT> tool does have a "point prediction" mode.
HTH, Brett

Lasse, your feedback isn't very helpful to me. I use this function frequently, and can assure you that it _does_ work. Perhaps you can tell me why you think it's not working, or why it's buggy, and let me take a look?

This file has been downloaded hundreds of times. Is anyone else finding it to be buggy or nonfunctional? If there are bugs to be fixed or improvements to be made, I'd like the opportunity to fix/make them.

Thanks! Brett

NOTE: Maryam also asked me if she could modify the tick marks on the pop-up axis. That, too, is easily done. Just make whatever changes you want to customize new_ax at the appropriate place in the code. For instance:

set(new_ax,'units','normalized',...
'position',[0.1 0.1 0.8 0.8],...
'xtickmode','auto','ytickmode','auto');

Cheers,
Brett

Thanks for the suggestion, Image Analyst. Would you try out my XLSAppend submission and let me know if that addresses your needs?
Thanks,
Brett

Hi Bella,
Can you tell me how to recreate the error you're seeing? I never assigned a callback to a uipanel, nor have I seen that particular error. Is it reproducible? How can I trigger it (so I can figure out what's going on)? And what does "I have put the files outside the folder" mean? (I wonder if this is a path issue.)
Cheers,
Brett

Most excellent work...rock solid!

@recep and Kelly: Would you please verify that you have the latest version, and that it came with the TabPanel function? If not, please grab the new version. If so, it would help if you could tell me reproduction steps that trigger the problem.
Thanks, Brett

@Kelly and YAZ (and others):

Thanks to you both. I just figured out that you are using a version of MATLAB that predates R2009b. (Correct?) I use tildes to ignore unwanted arguments; that capability was introduced in '9b.) TO FIX THIS: Either upgrade to a newer MATLAB ;), or replace the tildes in my code with some word like "junk." That should do it!

Bojan, Jonas: Should be good to go now...please re-try! Thanks for the heads up.

Hi all,
Unfortunately, I am unable to support this piece of code. I wrote it VERY long ago, haven't touched it in a long time. The best I can do is (re-)steer you to the reference cited above. As for the calibration, that's my own implementation, and I don't know exactly how mathematically "rigorous" the idea is. The amplitude of peaks in the spectrum is only relevant relative to the amplitudes of other peaks. My thought was to add to the data a stationary signal of a know amplitude and frequency. The resulting "reference peak" would help to scale, or "calibrate," the spectrum of the data.
Cheers,
Brett

AA,
IMFREEHAND didn't exist when I wrote FREEHANDDRAW. I'm happy to see that you're using the new Toolbox functionality!

Thanks for all the feedback.... Regarding EXIT functionality, doesn't clicking on the "x" (lower left) suffice?

Prashant,
I understand; I worked with AFM images for 5 years, and know that there may be information/regions in them that you want to suppress. I was really questioning why you suggest suppressing or removing them with Paint rather than with MATLAB.