Can we change color of the some particular pixel in binary image?

I have binary image. I want to set red color to 100 white pixel only. Is it possible?

[Guillaume]

I do not understand the sentence "I want to set red color to 100 white pixel only"

By definition, binary images only have two colours. This is normally displayed as black and white, but if you want to have black and red you can:

imshow(yourbinaryimage+1, [0 0 0;1 0 0]);

[Image Analyst]

Binary images are only "true" or "false" - they do not have colors, unless you apply a pseudocolor look up table (colormap) like Guillaume showed. Nor can they take on a value of 100. You'd have to create a new integer or double image to have a value of 100, like

uint8Image = uint8(100 * binaryImage);

[bamini thavarajah]

I want to select 100 white pixel from binary image. Then I want to give red color for that 100 white pixel only.

[bamini thavarajah]

I'd not have to create a new integer or double image to have a value of 100. I have to select random pixel with that original image coordinate. When l use find function that give indices out of size of image.

Answer 1

[Image Analyst]

This is a duplicate of https://www.mathworks.com/matlabcentral/answers/370483-how-to-change-the-color-of-pixels-in-a-binary-image#comment_512650. A suitable answer was given there so you should not start a duplicate question when you already have a workable answer there.