Comments and Ratings

thank you for your code! But I think the code above is not very exact.it's code based on you:
function [Hists,files] = getImageHistsDir(DirName)
D = dir(DirName);
count = 0;
 
for (i=3:length(D))
    if ((strcmpi(D(i).name(end-3:end), '.jpg')==1) | (strcmpi(D(i).name(end-3:end), '.jpeg')==1))
        count = count + 1;
        Hists{count}=getImageHists([DirName '\\' D(i).name]);
        files{count}=[DirName '\\' D(i).name];
        fprintf('%.4d File %40s computed...\n',count,files{count});
    end
end
savefile='mydatabase';
save (savefile, 'files', 'Hists')
Making use of it,you can get imagesdir in your images files.thank you!

its k.. managed to solve it!! :-D

Thats was very useful - thanks a lot!

Hi guys, thanx alot for your comments. Sorry for the looong delay, but I hadn't checked the forum for quite a long time. Anyway, I am posting a simple function that computes the color histograms of a whole directory of images. In this way you will be also able to build your training data. You can use this function and then store the returned histograms (along with the filenames) in a mat file.

Matlab code:

function [Hists, files] = getImageHistsDir(DirName)

D = dir(DirName);

count = 0;

for (i=3:length(D))
    if ((strcmpi(D(i).name(end-3:end), '.jpg')==1) | (strcmpi(D(i).name(end-3:end), '.jpeg')==1))
        count = count + 1;
        [Hists{count}] = getImageHists([DirName '\\' D(i).name]);
        files{count} = [DirName '\\' D(i).name];
        fprintf('%.4d File %40s computed...\n',count,files{count})
    end
end

As you can see, you just specify the directory name in which the images are stored. This is actually what Nicola Franzoso has provided, but in a function mode.

since i am new to matlab,and i am trying to learn all the basics as quick as possible,,

i would like to know how exactly the database is created for images say if i have 10 images,where would i write the program for creating the database in matlab,and if images are in folder then how would i link it
explanation given above in one of the comment is not making me understand it properly

can anybody make this thing clear to me
requesting all the pioneers in Digtial image processing
need help in quick time.

Great work Theodoros.
About for create a database of new images i have try with this and work. In my sample the images are 17 from 1 to 17.jpg:

savefile = 'mydatabase.mat';

for numimma = 1:17 % 17 images in my sample
    
    imageName = strcat(num2str(numimma), '.jpg');
    
    % compute 3-D image histograms (HSV color space):
    [Hist, RGBQ] = getImageHists(imageName);
    
    isto = {Hist};
    imshow(RGBQ);
    drawnow
    dataisto(numimma) = isto;
    datafile(numimma) = {imageName};
    
end

save (savefile, 'datafile', 'dataisto')

with refrence to --->Real Time Microphone and Camera data acquisition and audio-video processing.

i am intrested in the real time audio plote formed in 1,1 subplot of your example can you help me out in giving the code?

--------------------------------------------------------------------------
??? Error using ==> videoinput.videoinput at 233
There are no devices installed for the specified ADAPTORNAME. See IMAQHWINFO.

Error in ==> realTimeMic at 45
    vid = videoinput('winvideo', 1);