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cant write image exactly shown by imshow

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hi every body. i have written a code which the result in imshow is ok but when i want to imwrite it, its different and wrong. could any body help me please?
Echo = imread('echo60%-croped-SRAD.jpg');
Mask = imread('mask60%.jpg');
Echo = mat2gray(Echo(:,:,1));
Mask = mat2gray(Mask(:,:,1));
Echo_Com = imcomplement(Echo);
Echo_Com_Final = (Echo_Com.*Mask)*255;
imshow(Echo_Com_Final, [0 255]);
  2 Commenti
Thiago Henrique Gomes Lobato
What "map" are you using? Are you sure it is the right one? Have you tried without it? Also, what exactly you mean by different and wrong?
talayeh ghodsi
talayeh ghodsi il 5 Apr 2020
thanks for your respond sir
i will attach the result images of
imshow(Echo_Com_Final, [0 255]);

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Image Analyst
Image Analyst il 5 Apr 2020
To write the image exactly as it is shown, you can use getframe() and then imwrite(). Keep in mind that this is like a screenshot so it won't have the same size and values as the original, underlying image, but it will be "exactly shown by imshow" that you requested
displayedImage = getframe();
imwrite(displayedImage, filename);
Or you can use export_fig()
  1 Commento
talayeh ghodsi
talayeh ghodsi il 6 Apr 2020
exatly because of the change of the size of the result image after save as, i want to save it by imwrite. I need to keep the original size of the image

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