Splitting part of image to smaller images

Hi!

I want to split a part of an image into smaller regions and perform a function on each of the new regions individually. See attached image.

What is the prefered choise here. Should i crop the image to the region of interest first and then split it up or is there a more efficient way of doing this?

I want to store the data in a mxn matrix afterwards.

Any suggestions?

Regards,

Anders Holmberg

[Mathieu NOE]

Hi

this is an example for multiple tif files where I selected a smaller area of the image - you can work on that

% select appropriate options below ...

% files = dir('*.tif');      % all tif files in current directory
files = dir('handheld*.tif');      % as example : only tiff files with "handheld" in the filename

% main loop
for ck = 1:length(files)
    Filename = files(ck).name;
    H{ck} = imread(Filename);   % save for future use
    
    % plot (just to check)
    figure(2*ck), imagesc(H{ck});
    
    % crop figure
    [m,n] = size(H{ck});
    cur_fig = H{ck};
    x_pixels_range = 1:110;
    y_pixels_range = 1:110;
    
    figure(2*ck+1), imagesc(cur_fig(x_pixels_range,y_pixels_range,:));
    
    
    % insert your own code here
    
end

Answer 1

[Sudhakar Shinde]

Image segmentation technique can be used to partition an image into multiple parts or regions, often based on the characteristics of the pixels in the image.

https://www.mathworks.com/discovery/image-segmentation.html

[Holmbrero]

Thank you for your answer. I will use image segmentation, but on each of the small images. The part that i am interested in is how to split the originial image into smaller ones in an efficient way.

Regards,

Anders Holmberg