how to overlay cropped image on uncropped original image

i cropped only the rectal part of mri images size 256 by 256 from pelvic mri images(size 512 by512) and train the unet model,after i want to display the segmented image by overlaying on the original pelvic image.here i want to put the small cropped and segmented image on original uncropped image that i didn't input to the model.

i tried the code below but its output is not what i want,i want the overlay to happen only at rectal part,

% Read the original image

originalImage = imread('20.jpg');

% Read the segmented test image

segmentedTestImage = imread('pixelLabel_20.png');

% % % Create a metal overlay effect using the imfuse function

overlayedImage = imfuse(originalImage, segmentedTestImage, 'blend', 'Scaling', 'joint');

% Overlay the binary mask on the original image

overlayedImage = labeloverlay(originalImage, segmentedTestImage );

% Display the overlayed image

imshow(overlayedImage);

the image is attached below.

Answer 1

[Image Analyst]

See my attached demos about pasting an image onto another image. Adapt as needed.

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