Getting rid of a black background surrounding an Image
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Hello, I was wondering how it would be possible to get rid of a black background that I have in an image. My teacher says to use a "green screen", but I do not see how it works for my image. bg is the fixed scene in which my image will be moving across. I understand that he made the black canvas by using the zeros function, but I cannot get it to work with my image. His image that he used also had a black background and his image resulted in only the colored image that he wanted. My image is this: http://www.buzzle.com/articles/how-to-make-a-paper-airplane.html
Here's the code that he used:
[row col pg] = size(bg);
pg = zeros(row,col,'uint8');
canv = cat(3,pg,pg,pg);
image(canv)
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