TIFF Tag Threshholding
|Code||263 (hex 0x0107)|
|Default||1 (No dithering)|
For black and white TIFF files that represent shades of gray, the technique used to convert from gray to black and white pixels.
The specification defines these values:
1 = No dithering or halftoning has been applied to the image data.
2 = An ordered dither or halftone technique has been applied to the image data.
3 = A randomized process such as error diffusion has been applied to the image data.
LibTiff defines these values:
THRESHHOLD_BILEVEL = 1;
THRESHHOLD_HALFTONE = 2;
THRESHHOLD_ERRORDIFFUSE = 3;