how to acess decimal values of grayscale image?

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aswathy pavithran
aswathy pavithran 2019-10-17
回答： aswathy pavithran 2019-10-17
i got figure of grayscale images. i found from the figure that RGB values of all pixels are in decimals.When i tried to access these decimal values, it is showing R value as 3 digit number,not decimal.How to acess decimal value?
  2 个评论
darova
darova 2019-10-17
Try to divide by 255. Color can be stored or (0..1) or (0 .. 255)
aswathy pavithran
aswathy pavithran 2019-10-17
it is not giving exact value sir. thank you for the reply

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回答（1 个）

aswathy pavithran
aswathy pavithran 2019-10-17
In gray scale image it is returning index value not the intensity.To get intensity value use code mat2gray();

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