MATLAB: How to display sub images which is stored in folder without overlapping

subimages

my subimages and output how it should look like is attached.kindly suggest code.because later on each and every segment i have to do modification.

any help is appreciated

Best Answer

images = dir('*.png') ;
N = length(images) ;
nx = 8 ; ny = 8 ;  % number of plots along row and column 
if nx*ny ~= N
    error('Please change the order');
end
figure
count = 0 ;
for i = 1:nx
    for j = 1:ny
        count = count+1 ;
        subplot(8,8,count) ;
        imshow(imread(images(count).name))
        axis off
    end
end

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MATLAB: How to convert the digit image into (3*2) blocks where I can check vertical and horizontal edges ? Actually, I need to check if vertical or horizontal edges exists in each block? If exists I need to return binary value 1.

A = imread('image 2.png') ;
m = 3 ; n = 2 ;
[nx,ny] = size(A) ;
if mod(nx,3)
    nx = nx+(3-mod(nx,3)) ;
end
if mod(ny,2)
    ny = ny+(2-mod(ny,2)) ;
end
A = imresize(A,[nx ny]) ;
l = size (A) ./ [m n];
T = mat2cell (A, repmat (m, l(1), 1), repmat (n, l (2), 1))

MATLAB: How to create a directory

%create a directory
tdir = tempname();
mkdir(tdir);
numimg = 10;
imagenames = cell(numimg, 1);
%store some images in there
for K = 1 : numimg
  randimg = randi([0 255], 32, 32, 3);
  imgnames{K} = fullfile( tdir, sprintf('image_%03d.png', K) );
  imwrite(randimg, imgnames{K});
end
pause(20);   %"later"
%read that folder
images = cell(numimg, 1);
for K = 1 : numimg
  imgname = imagenames{K};
  if ~exist(imgname, 'file')
    fprintf('somehow a file went missing: "%s"\n', imgname);
    images{K} = [];
  else
    images{K} = imread(imgname);
  end
end
%subplot all of them in one figure without overlapping
image4 = cat(4, images{:});
montage(image4);

Note:

If your only reason for reading them back in is to display them, then you can skip from "read that folder" onwards and instead use just

montage(imagenames);

Best Answer

Related Solutions

MATLAB: How to convert the digit image into (3*2) blocks where I can check vertical and horizontal edges ? Actually, I need to check if vertical or horizontal edges exists in each block? If exists I need to return binary value 1.

MATLAB: How to create a directory

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