convert image and linear stretch

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RuiQi
RuiQi on 27 Feb 2017
Answered: Walter Roberson on 27 Feb 2017
If i have an array of type double, how can i convert it to uint8 and linearly stretch all the values such that min = 0 and max = 255 ? do I have too write my own code for this ? Would this be the correct code ?
K = (depth - min(depth(:)))/(max(depth(:)) - min(depth(:)))*255;

Answers (2)

KSSV
KSSV on 27 Feb 2017
doc uint8 inbuilt function which converts double to uint8.
  1 Comment
RuiQi
RuiQi on 27 Feb 2017
thanks ! but i think it truncates the values that are above the limit. Id like to perform a scaling operation as well.

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Walter Roberson
Walter Roberson on 27 Feb 2017
im2uint8( mat2gray(depth) )

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