imread() wrong gray values

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Kaijun
Kaijun 2020-3-26
回答： Walter Roberson 2020-3-27
When I tried to imread an simple gray scale image I drew in paint.net, the gray scale of the image data was totally off -- the background changed from origianl white (255) to some random gray value (55).
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Image Analyst
Image Analyst 2020-3-27
Unfortunately you forgot to attach your image with the paper clip icon. I'll check back tomorrow.

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Walter Roberson
Walter Roberson 2020-3-27
The image file is not RGB, it is an colormapped image.
[img,cmap] = imread('image.png');
RGB = ind2rgb(img,cmap);
imshow(RGB)

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