pixQL 介绍
pixQL 是一个通过 SQL 来对图像进行操作的工具。
实例用法：
# turn all red pixels green pixql -i in.bmp -o out.bmp -q "SELECT WHERE COLOR = #FF0000FF; OPERATE SET COLOR = #00FF00FF;" # copy red channel into green channel pixql -i in.bmp -o out.bmp -q "OPERATE SET G = R;" # add white 1px 100x100 grid pixql -i in.bmp -o out.bmp -q "SELECT WHERE ROW % 100 = 0 OR COL % 100 = 0; OPERATE SET COLOR = WHITE;" # create 100x100 image with 10x10 checkerboard pattern pixql -o out.bmp -q "BLACK(100,100); SELECT WHERE ROW % 20 < 10; OPERATE SET COLOR = WHITE; SELECT WHERE COL % 20 < 10; OPERATE SET R = 255-OUT.R; OPERATE SET G = 255-OUT.G; OPERATE SET B = 255-OUT.B;"