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writing into an image does not work as expected

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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]

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Accepted Answer

Image Analyst
Image Analyst on 15 Jan 2020
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.

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