Digital halftoning technique based on 1-D multi-scale dot...

Details Digital halftoning technique based on 1-D multi-scale dot... Digital halftoning technique based on 1-D multi-scale dot...

2005-05-10

2009-08-25

Tran, Sinh (Department: 2622)

Television

Camera, system and detail

With electronic viewfinder or display monitor

C358S002100, C358S302000, C358S003010, C358S003020, C358S003030

Reexamination Certificate

active

07580074

ABSTRACT:
A line-based digital halftoning technique uses both a wavelet transform and multi-scale dot assignment concepts in which the dots are assigned in a top-down fashion and error diffusion is also adopted to fine tune the halftoned images and compensate for errors generated by the implicit quantization. 1-D processing makes the implementation easy while the top-down multiscale dot assignment can produce a multi-resolution halftoned image, which provides a good approximation of the original in multiple scales.

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