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how do i segment the attached image based on color?

Asked by Md. Motiur Rahman on 18 May 2018
Latest activity Commented on by Md. Motiur Rahman on 21 May 2018
i need to select the only fruit region and extract various color feature. That is why i need to segment the image and select only fruit region. Please give me your suggestion in this regard.

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I have done the segmentation and able to select the fruit region. i also get the Pixel Id list of the selected fruit region here thisBlobsPixels = blobMeasurements(k).PixelIdxList; Now how can i use this pixel id list to compute various color channel (red channel, green channel, blue channel) of the selected region. The attached image is gray scale image. Thanks in advance.

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1 Answer

Answer by KALYAN ACHARJYA on 20 May 2018
Edited by KALYAN ACHARJYA on 20 May 2018

    % code
pattern=repmat(all(~input_image,3),[1 1 3]); 
%convert to white pixels


By doing loop, you can find the R,G,B of any pixels.
input_image(i,j,1) % gives R value of respective pixel;
input_image(i,j,2) % gives G value of respective pixel;
input_image(i,j,3) % gives B value of respective pixel;
i only have pixel id list not x, y coordinates of pixel.
thisBlobsPixels = blobMeasurements(k).PixelIdxList;
it returns all pixel id list in one dimensional array.

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