How to calculate the mean of an image if I want to delete some value?

the picture above show the value of my picture

I don't know how to calculate the mean of all value if I don't want the value that >185

I must use what code?

Help me please TT

Answer 1

[madhan ravi]

matrix=double(matrix); % where matrix is the matrix of which you are trying to calculate the mean of
matrix(matrix>185)=NaN;
Result=mean(matrix(:),'omitnan') % mean along all dimensions
result=mean(a,1,'omitnan') % mean along columns
result=mean(a,2,'omitnan') % mean along rows
result(~isnan(result)) % to omit NaN values from the result

[Ajaree Rattanaharn]

Thank for your comment ^^

I got it ^^

[madhan ravi]

Anytime :) , if it was what you were looking for make sure to accept the answer.