[Top]
Image
Image.Colortable
|
Method Image.Colortable()->floyd_steinberg()
- Method
floyd_steinberg
-
object floyd_steinberg()
object floyd_steinberg(int bidir, int|float forward, int|float downforward, int|float down, int|float downback, int|float factor)
- Description
-
-
Set dithering method to floyd_steinberg.
The arguments to this method is for fine-tuning of the
algorithm (for computer graphics wizards).
 |
 |
 |
original |
floyd_steinberg to a 4 colorcube |
floyd_steinberg to 16 chosen colors |
- Parameter bidir
-
-
Set algorithm direction of forward.
-1 is backward, 1 is forward, 0 for toggle of direction
each line (default).
- Parameter forward
-
- Parameter downforward
-
- Parameter down
-
- Parameter downback
-
-
Set error correction directions. Default is
forward=7, downforward=1, down=5, downback=3.
- Parameter factor
-
-
Error keeping factor.
Error will increase if more than 1.0 and decrease if less than 1.0.
A value of 0.0 will cancel any dither effects.
Default is 0.95.
- Returns
-
-
the object being called
|