i want a code for remove background from an image.

this is my image.

[Walter Roberson]

http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags

Answer 1

[Image Analyst]

What do you mean by remove? You can't remove it, but you can set it to something else, like zero or something. Just threshold:

background = grayImage < 50; % or whatever number works
grayImage(background) = 0; % Set background to 0 (black).

[Ahmad AlZein]

please, can you explain the code

[Walter Roberson]

https://en.wikipedia.org/wiki/Thresholding_(image_processing)