write (save) an image file

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Elysi Cochin 2014-1-31

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https://ww2.mathworks.cn/matlabcentral/answers/114352-write-save-an-image-file

评论： Syed Mobashir 2015-3-12

i had a .mha file, i used the below two lines to display the image and i get the first full image as in the link below....

 V = mha_read_volume('BRATS_HG0001_truth.mha');
 imshow(squeeze(V(:,:,round(end/2))),[]);

please can someone help me how to save that image to a jpg or bmp or tiff file....

i tried

imwrite(squeeze(V(:,:,round(end/2))),'filename.bmp')

but i'm not getting the image... i get the outline of the image as shown in link (image(b))... what should i do to save as image(a)

http://imageshack.com/a/img838/8308/yc91.png

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采纳的回答

Walter Roberson 2014-1-31

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Notice that when you call imshow you are providing the [] second parameter. That tells imshow() to effectively shift and scale the data so that it runs between 0 and 1. You can do the same tranformation:

newimage = squeeze(V(:,:,round(end/2)));
minimage = min(newimage(:));
maximage = max(newimage(:));
scaledimage = (newimage - minimage) ./ (maximage - minimage);
imwrite(scaledimage, 'filename.bmp');