I have a color image , I want to get the relationship between the intensity and distance(we know the scale bar 1.9pixel/micro))

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QUAN WANG 2021-7-2

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https://ww2.mathworks.cn/matlabcentral/answers/870908-i-have-a-color-image-i-want-to-get-the-relationship-between-the-intensity-and-distance-we-know-the

编辑： Image Analyst 2021-7-3

My input is the .mat file. I need calculate from in the center.

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QUAN WANG 2021-7-2

the .mat file actually is a image, if you use imagesc

Image Analyst 2021-7-3

编辑：Image Analyst 2021-7-3

I don't understand the question. I see a bunch of circles and the center of the set of circles, but exactly what do you want to measure? The distance of WHAT from the center?

See the FAQ:

https://matlab.fandom.com/wiki/FAQ#How_can_I_fit_a_circle_to_a_set_of_XY_data.3F

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