1. ImageFilter Introduction

See: https://pillow.readthedocs.io/en/stable/reference/ImageFilter.html

Below is a list of predefined filters.

BLUR
../_images/compare_BoxBlur.png

CONTOUR
../_images/compare_contour.png

DETAIL
../_images/compare_detail.png

EDGE_ENHANCE
EDGE_ENHANCE_MORE
../_images/compare_edge_enhance_more.png

EMBOSS
../_images/compare_emboss.png

FIND_EDGES
../_images/compare_find_edges.png

SHARPEN
../_images/compare_sharpen.png

SMOOTH
SMOOTH_MORE
../_images/compare_smooth_more.png

Below is a list of filters with parameters.
BoxBlur
../_images/compare_BoxBlur.png

GaussianBlur
../_images/compare_GaussianBlur.png

UnsharpMask
../_images/compare_UnsharpMask.png

Kernel
../_images/compare_Kernel.png

ModeFilter, MinFilter, MedianFilter, MaxFilter
../_images/compare_Filters.png

RankFilter
../_images/compare_RankFilter.png