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US 2004/0169872 A1Published application
Blind inverse halftoning
OwnerRon P. Maurerinventor
Life of this patent
Estimating the term…
Abstract
Blind inverse halftoning on a digital image is performed by applying a robust convolution filter to the digital image.
Claims21
A method of performing blind inverse halftoning on a digital image, the method comprising applying a robust convolution filter to the digital image.
Apparatus for performing blind inverse halftoning of a digital image, the apparatus comprising a robust convolution filter for filtering the digital image.
A system comprising:
- a capture device for generating a digital image;
- and
- a processor for performing inverse halftoning by applying a robust convolution filter to at least some pixels belonging to edges.
An article for a processor, the article comprising computer memory encoded with a robust convolution filter having a coherence-preferring mask.
Dependencies are inferred from the claim text.