Restoration of halftoned color-quantized images using projection onto convex sets

Yik Hing Fung; Yuk Hee Chan

doi:10.1109/ICIP.2004.1418756

Restoration of halftoned color-quantized images using projection onto convex sets

Yik Hing Fung
, Yuk Hee Chan

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

2 Citations (Scopus)

Abstract

Restoration of color-quantized images is rarely addressed in the literature especially when the images are color-quantized with halftoning. Direct applications of existing restoration techniques are generally inadequate to deal with this problem. In this paper, we propose a POCS-based restoration algorithm to solve the problem. This algorithm derives useful information for restoration with the available color palette and the mechanism of a halftoning process. It is shown to be able to provide a good restoration result.

Original language	English
Title of host publication	2004 International Conference on Image Processing, ICIP 2004
Pages	325-328
Number of pages	4
Volume	1
DOIs	https://doi.org/10.1109/ICIP.2004.1418756
Publication status	Published - 1 Dec 2004
Event	2004 International Conference on Image Processing, ICIP 2004 - , Singapore Duration: 18 Oct 2004 → 21 Oct 2004

Conference

Conference	2004 International Conference on Image Processing, ICIP 2004
Country/Territory	Singapore
Period	18/10/04 → 21/10/04

ASJC Scopus subject areas

General Engineering

More information

10.1109/ICIP.2004.1418756

http://hdl.handle.net/10397/1521

Cite this

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title = "Restoration of halftoned color-quantized images using projection onto convex sets",

abstract = "Restoration of color-quantized images is rarely addressed in the literature especially when the images are color-quantized with halftoning. Direct applications of existing restoration techniques are generally inadequate to deal with this problem. In this paper, we propose a POCS-based restoration algorithm to solve the problem. This algorithm derives useful information for restoration with the available color palette and the mechanism of a halftoning process. It is shown to be able to provide a good restoration result.",

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AB - Restoration of color-quantized images is rarely addressed in the literature especially when the images are color-quantized with halftoning. Direct applications of existing restoration techniques are generally inadequate to deal with this problem. In this paper, we propose a POCS-based restoration algorithm to solve the problem. This algorithm derives useful information for restoration with the available color palette and the mechanism of a halftoning process. It is shown to be able to provide a good restoration result.

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DO - 10.1109/ICIP.2004.1418756

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BT - 2004 International Conference on Image Processing, ICIP 2004

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Restoration of halftoned color-quantized images using projection onto convex sets

Abstract

Conference

ASJC Scopus subject areas

More information

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