ColorLooks

Abstract

author: Wilbert Dijkhof (partly ported from Trev's VDub filter Colourlooks and Graft's Colorize)
version: 1.3
download: http://www.avisynth.org/warpenterprises/
category: Misc Plugins
requirements:

license: GPL

Usage

Colorize (clip, color=0xa28a65, scale=false)
requires YUV

Posterize (clip, pbits=8)
requires YUV/RGB

Sepia (clip, color=0xa28a65, mode="triangular") # default values gives the Sepia effect
requires YUV

Technicolor (clip, channel="R") # default values gives technicolor effect
requires RGB

Description of the filter

Colorize provides the ability to convert a video to a monochrome video based on a selectable color. For example, the old-style brown photograph look can be easily obtained, or grayscale clips can be made to look a bit more interesting. The scale = false uses the luma of the source clip, and scale = true scales the clip by "luma of source clip / 240" (bright objects stay bright, and dark objects get darker).

Posterize just chops down the bit depth of the video. It reduces the number of colors while maintaining a resemblance of the original image characteristics. The pbits setting determines the amount of chopping. pbits = 8 means no chopping, and pbits = 0 means chopping everything resulting in a black clip.

Sepia gives the sepia effect resulting in a monochrome video based on a selectable color. It does so by appling color to mid-tones (mode="triangular"), or high-tones (mode="linear"). The luma is copied from the source clip. The default values produce the "true" sepia effect.

Technicolor is a two color process that uses red and cyan as opposed to red, green, blue. So to get this effect, the green and blue level is set to cyan. The channel option indicates what color should be kept: 'G' sets the red and blue levels to magenta, 'B' sets the R and G channels to yellow. The default values produce the "true" technicolor effect.

Examples

Some sepia like effects using the Sepia and Colorize filters:

original Sepia()
   
Sepia(mode="linear") Colorize()
   
 
Colorize(scale=true)  

Some other examples:

original Sepia(color=$dda359)  # R221 G163 B89
   
Colorize() Colorize(color=$dda359)  # R221 G163 B89
(which is the color of the sand in the original picture)

Some technicolor like effects:

original Technicolor()

Some posterize effects:

original (= Posterize(8)) Posterize(3)
   
 
Posterize(2)  

Version

v1.3, 7th September 2005

v1.2, 22nd July 2005