Background and Foreground separation.

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Sandeep parajuli 2020-6-13

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https://ww2.mathworks.cn/matlabcentral/answers/547548-background-and-foreground-separation

评论： Sandeep parajuli 2020-6-29

I try to separate the foreground and background picture. The picture is two people are standing by the sea. How to separate the back ground and foreground. I use the color threshold but I got confused.Please help me out.

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Image Analyst 2020-6-15

And what is background and what is foreground? The beach, the sea, the people, the sky?

Sandeep parajuli 2020-6-28

编辑：Sandeep parajuli 2020-6-28

Hey guys sorry for late reply but,

Lets say, I have an RGB image and I binarize that image and I print out the pixels of the image where Foreground pixels are represent by 1 and backgraound pixels are represent 0.

After getting this I want to use the nested for loop so that I can search all 0 and 1 and if 0 is found convert that pixels color to black and if the 1 is found convert that pixels color to white. At last I want to convert that white color into original color.

I want the code for that.

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Answer 1

Image Analyst 2020-6-28

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https://ww2.mathworks.cn/matlabcentral/answers/547548-background-and-foreground-separation#answer_458293

在 MATLAB Online 中打开

Try this to mask your image

% Mask the image using bsxfun() function to multiply the mask by each channel individually.  Works for gray scale as well as RGB Color images.
maskedRgbImage = bsxfun(@times, rgbImage, cast(mask, 'like', rgbImage));

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Sandeep parajuli 2020-6-29

I try this code for this image but I think it doesnot work properly, I want to convert the backgound into black color and butterfly and flower into white color without using the matlab app tools.I want general code for RGB so that I can seperate background into black and foreground into white.

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