Can CCD camera output more than just intensity information of image?

Dear all,

I am curious about how CCD works to pick up images... more specifically, I
wonder CCD camera can output more than just pixel intensity information of
an image? For example, I want to know the "variation" property of a block of
an image, for example, a 8x8 block... roughly classified into "smooth" block
and "non-smooth" block, two classes...

I want to know if CCD can judge this very roughly and output some currents
to indicate this? Anagolous to human eyes, human eyes can tell which part of
the image is "highly non-smooth" at one glance... can CCD do that?

Thanks a lot,

-Walalla