Line portrait notes

1
image detreaster
Level 50~150 增強對比
blur surface blur
2
15-206 一點點
mode-grayscale
Mode bitmap
output  240 pixel/inch
halfscreen
halfton 30 p/i
mode line
bitmap gray 1 ok
高斯 一點點
back rgb
level 0-110
displace 1 ; 3
warp Around
color overlay