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diving all images in folder into n horizental and vertical strips

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i have 500 images and i want to divide all of them into 4 equal parts automatically and get stored to a new location. i have a code which can devide a image into n number of horizental and vertical strips but i want to use that code on all the images and store the cropped new 4 images to a seperate folder

Accepted Answer

Image Analyst
Image Analyst on 26 Jul 2021
You can get the rows and columns like this
[rows, columns, numberOfColorChannels] = size(yourImage);
r = ceil(rows/4);
c = ceil(c/4);
dividingRows = 1 : r : rows;
dividingColumns = 1 : c : columns
for k = 1 : length(dividingRows)
row1 = dividingRows(k);
row2 = row1 + r;
if row2 >= rows
row2 = rows
end
thisBand = yourImage(row1:row2, :, :);
% etc.
end
% Similar for columns.
for k = 1 : length(dividingColumns)
col1 = dividingColumns(k);
col2 = col1 + c;
if col2 >= columns
col2 = columns
end
thisBand = yourImage(:, col1:col2, :);
end
  6 Comments
Image Analyst
Image Analyst on 28 Jul 2021
You're not changing the name at all. You're just using the same name for all images you save. To fix it try this:
[~, baseNameNoExt, ext] = fileparts(baseInputFileName);
baseOutputFileName = sprintf('%s, row %2.2d, col %2.2d.png', baseNameNoExt, row, col);

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