how to read the pixels of image and convert it to binary representation?

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Anu Sharma 2014-3-27

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https://ww2.mathworks.cn/matlabcentral/answers/123385-how-to-read-the-pixels-of-image-and-convert-it-to-binary-representation

编辑： Image Analyst 2014-3-27

采纳的回答： Image Analyst

hello., i need ur guidance to read the pixel values of rgb image and convert those to binary representation.,

thanks in advance

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Answer 1

Image Analyst 2014-3-27

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https://ww2.mathworks.cn/matlabcentral/answers/123385-how-to-read-the-pixels-of-image-and-convert-it-to-binary-representation#answer_130762

在 MATLAB Online 中打开

You can threshold

binaryImageRed = rgbImage(:,:,1) > someThresholdValueR;
binaryImageGreen = rgbImage(:,:,2) > someThresholdValueG;
binaryImageBlue = rgbImage(:,:,3) > someThresholdValueB;

What are you thinking would be foreground and what is background? I can't tell because you forgot to attach your image.

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Image Analyst 2014-3-27

You should use imshow() instead of disp(). imshow() displays the image while disp spews every pixel value in decimal to the command window (not what you want).

Also, I don't know what the binstring stuff is for. I'd get rid of it.