|
|
Re: Can gray image’ pixel value be negative?
Posted:
Sep 22, 2008 6:01 AM
|
|
lijing <verylijing@163.com> wrote in message <1aeb3683-1e4d-4b5f-ad51-116d3d71527a@a8g2000prf.googlegroups.com>...
> Want to normalize an gray image to zero mean and unit variance, but
> now I wonder could a gray image=92 pixel value be negative? I have never
> seen. Could you give some explanation?
> Thank you for your attention! Thank you for your replay!
I believe the gray pixel alues are between 0 and 1, don't know what happens if you make a value negative
|
|
