imwrite generates incorrect files by mixing up colors

Hi,

I'm trying to save a 22000x40000 RGB int8 image (values range from 8 to 255) in jpg. when I save the full file I get: imwrite(img_diam,'img_full.jpg')

(see first attached image)

when I save the same image cropped by one pixel I get: imwrite(img_diam(2:end-1,2:end-1,:),'img_crop.jpg')

(see second attached image)

When I crop even more I get the correct image..

Thank you for your Help. TD

[Swathik Kurella Janardhan]

Can you share the image data(img_diam) to reproduce the issue? Also, share a screenshot of the correct image and the image data of the correct image.