i have double array and i want to rescale it in the range (0,1) and then convert it into jpg.how to do it?
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i have double array and i want to rescale it in the range (0,1) and then convert it into jpg .how to do it?
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Walter Roberson
2019-1-21
mat2gray() followed by imwrite()
Note: true grayscale jpg are very uncommon in practice, but they have been valid for quite a while. They are not handled by some rather old browers (e.g., don't expect to display them easily in Windows XP time frame.)
In practice nearly all jpeg are RGB images.
Reminder: JPEG is a lossy image format, so if you expect to be able to read back in exactly what you wrote out, then you should use a different image format.
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