How to substract hand only from the input rgb images?

I want to remove the background by white and only want to keep the hand palm. how to do that ? The rgb image has been attached.

Answer 1

[Image Analyst]

Try using a uniform background rather than a cluttered one if you can. It will make it a lot simpler.

You could try color segmentation to extract just skin and I attach a demo for that.

[Zara Khan]

How can I make the background uniform?

[Image Analyst]

Perhaps the best way would be to hang a black velvet drape behind the person. Black velvet is one of the darkest things that you can economically use for a background - much darker than a black posterboard.

[Zara Khan]

I am using a standard dataset which is publicly availble . is this possible to ask them to do so ???

[Image Analyst]

I don't know. You could try. You could also try the foreground detector in the Computer Vision Toolbox. Otherwise give my skin color detector a try.

Answer 2

[Matt J]

You can use imfreehand() or Freehand() to draw the boundary of the palm interactively and then mask out everything in the background.

[Zara Khan]

Any demo please ?

[Matt J]

A=imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/458405/111.png');

load(websave('Mask','https://www.mathworks.com/matlabcentral/answers/uploaded_files/459155/Mask.mat'));

 imshow(uint8(double(A).*msk));

[Zara Khan]

what about this mask.mat?

[Matt J]

Yes what about it?