Image overlay

Overlay a binary mask onto an image using a specified color

Description

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 It takes input image and a binary mask, and it produces an output image whose masked pixels have been replaced by a specified color.

• Acknowledgements: This submission has inspired the following:; imagescnan.m v2.1 (Aug 2009), flattenMaskOverlay, ALPHAMASK: semi-transparent image overlay
• Required Products: Image Processing Toolbox
• MATLAB release: MATLAB 7.2 (R2006a)

[James Jones]

??? Subscript indices must either be real positive integers or logicals.

Error in ==> imoverlay at 54
out_red(mask) = color_uint8(1);

[Gil Hornung]

I would like to overlay a picture which is not bw.

[Lennart Burg]

I think it works great. Thnx

[Chai Tan]

Works great. Saves me a few lines of code! :) Thanks.

[Matt Whitaker]

Simple, useful and well styled and coded. Did something in my existing code similar but this is a bit faster and less memory. Steve, you might want to note in the documentation that if you have a double input outside the range of 0-1 (soemthing you typically use imagesc to display) that you would want to run mat2gray on it before passing to this function. A useful further enhancement would be either to auto detect and apply this or have an optional switch.

[B r]

 

[Phillip SUn]

great and loved it

[Steve Eddins]

Matt - I added a note and an example to the documentation based on your suggestion. Thanks!

[Robert Misevski]

Great tool work very well for what a needed to do.

[Carlos Adrián Vargas Aguilera]

Great tool. Now I can paint NaN's in black on imagesc.

Thanks

[Waleed El-Badry]

that's an excellent piece of code.

[paddy84]

This is an excellent bit of code. It worked perfectly fine in my case.

[Rotem]

Great work! saved me some precious time...

[hima]

This code was great.heyy i want the canny edge borders to be black.now they are in green colour.how to get that???

[James]

 

[TIAN ZHOU]

thanks. used in my code. will upload soon

[Mangesh]

is it i can find the upper and lower pixel value of my region..............

[Mangesh]

 

[Mich]

 

[Mahmut]