How to fill color in the specified area?

How to fill color in the specified area?

Answer 1

[Image Analyst]

You can use imfill() if you have a binary image, or if the binary image is a mask, then for a black and white image, you can do

grayImage(binaryImage) = fillColor;  % Whatever this might be, say 42 or 123.

If you have a color image, you can do

% Mask the image.
maskedRgbImage = bsxfun(@times, rgbImage, cast(mask,class(rgbImage)));