Method for generating and storing digitalized density threshold

Details Method for generating and storing digitalized density threshold Method for generating and storing digitalized density threshold

1995-04-27

1997-06-24

Boudreau, Leo

Image analysis

Image compression or coding

Gray level to binary coding

382270, 358457, 358459, G06K 938

Patent

active

056424361

ABSTRACT:
A method for generation and storage of digitized threshold density values for use in creating a half-tone image pattern such as in the form of color separations. The threshold density values in a sub-cell of a multiple reference cell (supercell) are stored as storage words in accordance with a spot function. A sorted sequence is determined tailored in accordance with the spot function and threshold density values are allocated to the words in accordance with position of the words in a sorted sequence. Corrections are made to the threshold density values in order to compensate for different numbers of storage words in the subcells.

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