i need to calculate certain parameters for chromosome in the image. how can i select region of chromosome alone from the background to calculate parameters.

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manoj m 2013-1-25

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https://ww2.mathworks.cn/matlabcentral/answers/59852-i-need-to-calculate-certain-parameters-for-chromosome-in-the-image-how-can-i-select-region-of-chrom

采纳的回答： Image Analyst

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manoj m 2013-1-25

check image in the link : http://imageshack.us/photo/my-images/138/chromosomeimage.png/

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Image Analyst 2013-1-25

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https://ww2.mathworks.cn/matlabcentral/answers/59852-i-need-to-calculate-certain-parameters-for-chromosome-in-the-image-how-can-i-select-region-of-chrom#answer_72396

在 MATLAB Online 中打开

Threshold:

binaryImage = grayImage > thresholdValue;
measurements = regionprops(binaryImage, 'all');

sir,i want to calculate statistical parameters like variance,entropy,mean to the chromosome region in the image. these parameters are not available in regionprops. Is there any other way by which i can get the pixel values in the chromosome region and calculate those parameters.