writing into an image does not work as expected

newImage = ones(10, 10, 0)

newImage(1, 1, :) = [37, 49, 40];

- > the pixel at position 1, 1 is displayed white instead of green.

This is just an example, actually i need to write part of a processed image into a new image.

it looks kind of this:

newImage(startX:endX, startY:endY, :) = processedImage;

if i check the value for newImage(1, 1) it is correctly set to [27, 49, 40]

Answer 1

[Image Analyst]

Try to make it a uint8 image:

newImage = ones(10, 10, 3, 'uint8);

The problem was that it was double, and if it's double it expects all values to be between 0 and 1 and any that are over 1 are displayed as 1, which is white.

[Marie-Sophie Pichler]

thanks so much! it drove me crazy :D