CODEWITHSUNDEEP
imagematlabvectorization
ZhRa
ZhRa

Reputation: 19

how to calculate mean of several gray scale images in matlab?

I have a set of images and I want to calculate mean of these images in Matlab and then subtract the mean from all images.Then, plot the distribution of images through hist function in Matlab.

Thanks

Upvotes: 0

Views: 4386

Answers (1)

Sameh K. Mohamed
Sameh K. Mohamed

Reputation: 2333

I suppose images are in the same size, if you have for example 3 images the following code would do what you what:

images       = image1 + image + image3;
meanOfImages = images ./ 3;
image1       = image1 - meanOfImages; 
image2       = image2 - meanOfImages; 
image3       = image3 - meanOfImages;

The idea is to sum all the images then divide the resulting matrix element-wise by number of images and that would be the mean of them, then subtract this matrix from each image matrix.

Upvotes: 1

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