Spatial domain and frequency domain
In spatial domain, we deal with images as it is. The value of the pixels of the image change with
respect to scene. Whereas in frequency domain, we deal with the rate at which the pixel values
are changing in spatial domain.
Spatial domain
In spatial domain, we directly deal with the image matrix.
Frequency Domain
We first transform the image to its frequency distribution. Then our black box system perform
whatever processing it has to performed, and the output of the black box in this case is not an
image, but a transformation. After performing inverse transformation, it is converted into an
image which is then viewed in spatial domain.
It can be pictorially viewed as
