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Color Average and Variance adjustment

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Maria Jeseca Baculo
评论： Maria Jeseca Baculo 2018-7-31
Hi! I am working on a project that requires the adjustment of color average and variance of an image based on another image. This is the sample image. I want to adjust the color average and variance of the umbra region based on the values of the sunshine region.
I got the average and variance of the images using:
mean_sunshine=mean2(nonzeros(sunshine{1}))
var_sunshine=var(nonzeros(double(sunshine{1})))
mean_umbra=mean2(nonzeros(umbra{1}))
var_umbra=var(nonzeros(double(umbra{1})))
How to I perform the adjustments after computation? Thanks :)

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回答（1 个）

Image Analyst
Image Analyst 2018-7-31
Just do something within the mask, for example
yourImage(mask) = slope * yourImage(mask) + offset;

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