how to set the background color of this image to 0 and remaining foreground color to 1 to make this image binary?

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Arshad Ali 2019-3-30

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评论： Image Analyst 2019-3-30

采纳的回答： Image Analyst

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Answer 1

Image Analyst 2019-3-30

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Make a mask:

% Extract the individual red, green, and blue color channels.
redChannel = rgbImage(:, :, 1);
greenChannel = rgbImage(:, :, 2);
blueChannel = rgbImage(:, :, 3);
% Now make the mask
mask = ~(recChannel ~= 0 & greenChannel == 0 & blueChannel == 0);

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Arshad Ali 2019-3-30

if the image is like this, then the code will be the same.

Image Analyst 2019-3-30

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Your colors are not pure.

When I tried to save the image it looks like this is a labeled image returned from the watershed function, so you should already have the binary image to begin with, so that is what you want. You can also get it from the labeled matrix like

binaryImage = labeledMatrix ~= 0;

but that should not be necessary. Not sure how the white boundary lines got there though.

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