MATLAB: Can someone help me filling holes in the image attached and make it a perfect binary image with all holes filled

Question

I want that inside the boundary of the humanoid it should be white, ie all the black holes inside white boundary should be filled in white be it small or big. Please if any one can help me and teach me how to do this kind of filling automatically through a script that works for all other images of this kind. If in case complete hole filling in the below image is not possible, then please tell me how can I fill holes in the next smaller image which is just the cropped (1/4)th of the bigger image.

Answer 1

You might want to have a look at binary morphological operators like opening and closing: https://www.cs.auckland.ac.nz/courses/compsci773s1c/lectures/ImageProcessing-html/topic4.htm https://nl.mathworks.com/help/images/ref/imclose.html

they should do the trick for this kind of problems