Point Processing


### Input is point only itself
type of image processing operation that involves modifying the values of individual pixels in an image
one point’s output only depends on transformation function and point value
$$g(x, y) = T[f(x,y)]$$
$f(x, y)$ is input image and $g(x, y)$ is output image T is point processing operation

### Properties of $T(r)$
- Monotonic → looks natural and inversable







