The "meshgrid" function can be used to define the mesh grid for the output images and the regions of interests in the input images. After defining the appropriate regions of interests in the ouput and input images, corresponding regions from input images can be mapped to the output image by using the "sub2ind" function for converting the array subscripts to linear indexes which can be used to access the correct image pixels.
% Define the size of the output image
outputSize = [100, 100];
outputImage = zeros(outputSize(1), outputSize(2), 3, 'uint8');
% Load the input images and define more images as needed
image1 = imread('image1.jpg');
image2 = imread('image2.jpg');
% Define the mesh grid for the output image
[xOut, yOut] = meshgrid(1:outputSize(2), 1:outputSize(1));
% Define the regions in the output image using mesh
% Map a 25x25 region from image1 and a 35x25 region from image2
% Define the ROIs in the output image
roi1_output = (xOut >= 1 & xOut <= 25) & (yOut >= 1 & yOut <= 25);
roi2_output = (xOut >= 26 & xOut <= 60) & (yOut >= 1 & yOut <= 25);
% Define the corresponding ROIs in the input images using mesh
[xIn1, yIn1] = meshgrid(10:34, 10:34);
[xIn2, yIn2] = meshgrid(50:84, 50:74);
% Map the regions from input images to the output image
outputImage(roi1_output) = image1(sub2ind(size(image1), yIn1, xIn1));
outputImage(roi2_output) = image2(sub2ind(size(image2), yIn2, xIn2));
% Display the output image
imshow(outputImage);
For more information regarding the "meshgrid" and "sub2ind" functions, refer to the following documentation links:
