ChanMix

Revision as of 06:45, 7 February 2014

Creates a greyscale image from an RGB24 source, it has 3 parameters to specify how much of each color channel is used.

- AviSynth 2.5.8 or later

- Progressive input only

- Supported color formats: RGB24

chanmix (clip, float "r", float "g", float "b")

float r = 1.0

float g = 1.0

float b = 1.0

The weight of each color channel.

Gray = (red*r + green*g + blue*b) / (r+g+b)

ChanMix with default settings.

AviSource("blah.avi")
chanmix(r=1.0, g=1.0, b=1.0)

Here are some examples where ChanMix is identical (but slower) to Greyscale:

# Identical to Greyscale(matrix="Rec601") 
AviSource("blah.avi")
chanmix(r=0.299, g=0.587, b=0.114)

# Identical to Greyscale(matrix="Rec709")
AviSource("blah.avi")
chanmix(r=0.2126, g=0.7152, b=0.0722)

# Identical to Greyscale(matrix="Average")
AviSource("blah.avi")
chanmix(r=0.333333, g=0.333333, b=0.333333)

Version         Date            Changes

2005/02/28      2005/02/28      - Initial release

@@ Line 8: / Line 8: @@
 <br>
 == Description ==
-:Creates a grayscale image from an RGB24 source, it has 3 parameters to specify how much of each color channel is used.
+:Creates a greyscale image from an RGB24 source, it has 3 parameters to specify how much of each color channel is used.
 <br>
-== Requirements: ==
+== Requirements ==
 :- AviSynth 2.5.8 or later
 :- [[FAQ_different_types_content#How_do_I_recognize_progressive.2C_interlaced.2C_telecined.2C_hybrid_and_blended_content.3F|Progressive]] input only
@@ Line 29: / Line 29: @@
   [[AviSource]]("blah.avi")
   chanmix(r=1.0, g=1.0, b=1.0)
+<br>
+Here are some examples where ChanMix is identical (but slower) to [[GreyScale|Greyscale]]:
+ # Identical to Greyscale(matrix="Rec601")
+ [[AviSource]]("blah.avi")
+ chanmix(r=0.299, g=0.587, b=0.114)
+ # Identical to Greyscale(matrix="Rec709")
+ [[AviSource]]("blah.avi")
+ chanmix(r=0.2126, g=0.7152, b=0.0722)
+ # Identical to Greyscale(matrix="Average")
+ [[AviSource]]("blah.avi")
+ chanmix(r=0.333333, g=0.333333, b=0.333333)
+*For more information see [[Color_conversions#Color_coefficients|color coefficients]].
 <br>
 == Changelog ==