how to convert a double matrix image to a unit8 matrix ?
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Mariem Harmassi
on 8 Mar 2013
Commented: Bruno Aravena Pérez
on 29 Apr 2022
Hi everybody :) I have an image ,a matrix with values between -0.0934 and 0 and i want to convert it to unit8 matrix with values between 0 ans 255.
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Accepted Answer
Azzi Abdelmalek
on 8 Mar 2013
Edited: Azzi Abdelmalek
on 8 Mar 2013
A=imread('yourimage')
B=uint8(A)
EDIT
d=linspace(min(im(:)),max(im(:)),256)
im1=uint8(arrayfun(@(x) find(abs(d(:)-x)==min(abs(d(:)-x))),im))
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Azzi Abdelmalek
on 8 Mar 2013
Edited: Azzi Abdelmalek
on 8 Mar 2013
Try this
%If im is your image
d=linspace(min(im(:)),max(im(:)),256)
im1=uint8(arrayfun(@(x) find(abs(d(:)-x)==min(abs(d(:)-x))),im))
More Answers (1)
Image Analyst
on 8 Mar 2013
You can use the mat2gray() function:
image8Bit = uint8(255 * mat2gray(floatingPointImage));
It will scale your values to the range 0-255.
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