Image overlay

Version 1.3 (3.72 KB) by Steve Eddins
Overlay a binary mask onto an image using a specified color
Updated 3 Dec 2019

View License

The function IMOVERLAY creates a mask-based image overlay. It takes input image and a binary mask, and it produces an output image whose masked pixels have been replaced by a specified color.

NOTE: This original implementation of IMOVERLAY was superseded in R2016a by a new function, with the same name, in the Image Processing Toolbox. The version here has been renamed to IMOVERLAY_OLD.

Cite As

Steve Eddins (2024). Image overlay (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2006a
Compatible with any release
Platform Compatibility
Windows macOS Linux

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Version Published Release Notes

Renamed to IMOVERLAY_OLD. Use the new version (R2016a) in the Image Processing Toolbox.

Updated license

Based on a suggestion from Lasse, I added code to automatically convert the mask input to be logical.

Based on a suggestion by Matt Whitaker, I added documentation and an example explaining how to use mat2gray for double / single grayscale images outside the normal [0, 1] range.