how to save images into a image array and then use it?

i have taken plot of images and i need to store it into a image array and then i need to use that array variable as shown below

   for i = 1:framerate
     axes(handles.axes15);
     imshow(lipperimeter);hold(imgca,'on'); plot(imgca,centroids(:,1), centroids(:,2),    'r*','MarkerSize', 10, 'LineWidth', 3);

   im = getframe(handles.axes15);
   imwrite(im.cdata, fullFileName)
  end

this gives an image for a frame so for example 29 images for 29 framerate i have a code were i can save these images into a montage were all individual frames are shown as a single image as

*All i need to do is save the frames as a array of images something like

imgArray=cat(3,image1,image2,image3,...)

i dont know how to write so if any one can help me please*

THAT IS

   for i = 1:framerate
     axes(handles.axes15);
     imshow(lipperimeter);hold(imgca,'on'); plot(imgca,centroids(:,1), centroids(:,2),    'r*','MarkerSize', 10, 'LineWidth', 3);

   im = getframe(handles.axes15);

   imgArray=cat(3,image1,image2,image3,...)   like this is there any way we can save axes image into imageArray
  end

montage( cat(4,imgArray{:}) )

Answer 1

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F

[Anandakumar Selvaraj]

Mr Walter Roberson thanks for the answer but outside the loop i just get the final image not the full array is my code right or i have to change any

   myFolder = 'F:\Matlab Programs\matlab\new\Gui_img';
  filePattern = fullfile(myFolder, '*.jpg');
  jpegFiles = dir(filePattern);
  for k = 1:length(jpegFiles)
    baseFileName = jpegFiles(k).name;
    fullFileName = fullfile(myFolder, baseFileName);
   fprintf(1, 'Now reading %s\n', fullFileName);
    imageArray = imread(fullFileName);
    %imshow(imageArray);  % Display image.

    drawnow; % Force display to update immediately.
  end

montage(imageArray, 'Size', [4 7]);

Only the final frame/image is showing i am not able to get all the images

[Walter Roberson]

Skip everything from the "for" on downwards. Replace that code with

montage(jpegFiles, 'Size', [4 7]);

[Image Analyst]

It's possible that for 7x4=28 images, you could run out of memory depending on the size of your images. Unfortunately it creates a stitched image with no option to subsample, though I've let the developers know about this limitation. jpefFiles is a structure so you'll need to convert that to a cell array.

[Walter Roberson]

Ah, true, you would want {jpegFiles.name} instead of plain jpegFiles

Answer 2

[Mohamad Sabri]

clc
clear
im=imread('jjj.jpg');
gg=imresize(im,0.1);
 mm = rgb2gray(gg);

 rand(30)
 rand('seed',30)
t=13*rand(1,6);
ff1=imgaussfilt(mm,t(1,1));
ff2=imgaussfilt(mm,t(1,2));
ff3=imgaussfilt(mm,t(1,3));
ff4=imgaussfilt(mm,t(1,4));
ff5=imgaussfilt(mm,t(1,5));
ff6=imgaussfilt(mm,t(1,6));

imwrite(ff1,'n1.jpg')
imwrite(ff2,'n2.jpg')
imwrite(ff3,'n3.jpg')
imwrite(ff4,'n4.jpg')
imwrite(ff5,'n5.jpg')
imwrite(ff6,'n6.jpg')
h1=imread('n1.jpg');
h2=imread('n2.jpg');
h3=imread('n3.jpg');
h4=imread('n4.jpg');
h5=imread('n5.jpg');
h6=imread('n6.jpg');
h=[h1; h2; h3; h4; h5; h6];
imshow(h)


H=[1 2 3 4 5 6 ;getGlobalContrastFactor(h1) getGlobalContrastFactor(h2)...
    getGlobalContrastFactor(h3) getGlobalContrastFactor(h4)...
    getGlobalContrastFactor(h5) getGlobalContrastFactor(h6)]
for i=1:6
   y(i)=H(2,i);
   % getGlobalContrastFactor(ggr.jpg)
    %%  algoritm
    %..
    %... output y1 y2 y3
  
  output(i)=[y(i)];
    
end
infocus=max(output);
 for i=1:6
if max(output(i))==infocus
i;
break
end
 end
i

///////

hello friend , i need some help , this is my code , i use gcf to get the image with highest contrast , at the end i need to show this image for its index (i)

[Rik]

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