How to show an image?

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Darsana P M
Darsana P M 2018-4-6
评论： Darsana P M 2018-4-6
I would like to display a matrix as an image. The matrix is of size 250 2. I used image() function. But got an error stating an error.
CIJ=cell2mat(Cipher);
kk=CIJ*(1/100);
Cipher is of size 250 2. I tried to display kk, but I got a blue image. It must be a black and white image know? How to solve this issue?
  2 个评论
Dennis
Dennis 2018-4-6
why do you expect a black and white image? you can use colormap to change colors
Darsana P M
Darsana P M 2018-4-6
How to use colormap function?

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Walter Roberson
Walter Roberson 2018-4-6
image(kk)
colormap(gray(256))

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