how to ADD TO IMAGES

I have two images one is the original and the other is an edge map image how can i add these two images to get an image that shows a contour around the object(iris). i really appritiate your help.

thanks inadvance.

[Kye Taylor]

What are the sizes of your two images? I guess that the original is an m-by-n-by-3, and the edge map is an m-by-n?

[Matt J]

What's wrong with A+B?

Answer 1

[Steve Eddins]

I suggest using imoverlay from the MATLAB Central File Exchange.

Answer 2

[Image Analyst]

Assuming your edge map is a binary image, you can do

grayImage(binaryImage) = 255;

to set all pixels in your original image that are also indicated on your edge map to white. If you have a color image, you can do it one color channel at a time. Or if your image is uint8, you can add them, relying on the uint8 class to do the clipping:

grayImage = grayImage + uint8(255 binaryImage);