[MATLAB] Color image processing

Color is a very attractive issue in image processing

But what if i want to show a specific color ?

Maybe we can change traditional RGB color model to HSV color model 

Here is a simple solution on StackOverflow

They give a detailed solution and demonstration

=> How can I convert an RGB image to grayscale but keep one color?

Other article shows demonstration

=> How to Count number Objects in an Image identify by Color in Matlab

Another thing is HSV color space

If we want to capture a specific color, you should know where it is on the hue plane

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A color map example coding by C (Link here)