Re: mean() and mean2()

"wanna mt" wrote in message <i8omcg$grr$1@fred.mathworks.com>...
> what is the differences of mean() and mean2()?is it mean() is specific for maths algorithm and mean2() is used for image processing?

The most important difference is mean2() will treat uint8 or other integer arrays as double, whereas mean(mean()) will not.

For example,
>> a=uint8(2);b=uint8(3);
>> mean(a,b)

ans =

     2
>> mean2([a,b;a,a])

ans =

    2.2500