Writing processed image into new image not working as expected

i am trying this:

I(1, 1, :) = [26, 45, 34];

the pixel is white even though the right colors are printed if i check I(1, 1)...

Answer 1

[Jyothis Gireesh]

I am assuming here that the matrix “I” is of datatype double and “imshow()” function is used to display the image. Since the expected range of values for a double image is in between 0 & 1, the values assigned to the pixel at (1,1) are rounded off to the maximum value (1) which using “imshow()”. Hence the particular pixel appears to be white.

Answer 2

[Image Analyst]

You can try

imshow(I, []);

though if your image is double, and all the other pixels are in the range 0-1, all the other pixels will display as very dark. You might try dividing by 255:

I(1, 1, :) = [26, 45, 34] / 255;