how to use a binary mask as a "stencil" for a grayscale image?

8 次查看(过去 30 天)
Hey everyone,
I have a binary mask (first attached image) that I want to use to trace-out the image of a gray-scale picture (second attacked image) and create another image in that manner.
I tried the simple AND operation, but the newly created image is a binary, not grayscale. I want to use the mask to crop out the image, without changing anything else.
Thanks in advance for any tips!

采纳的回答

Image Analyst
Image Analyst 2017-6-22
Simply use the inverse of the mask to set those pixels to zero.
imageCopy = grayImage; % Make a copy so you don't destroy the original.
imageCopy(~mask) = 0; % Set black areas to black, leaving gray areas intact.

更多回答(0 个)

类别

Help CenterFile Exchange 中查找有关 Image Processing Toolbox 的更多信息

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by