Algorithms for coding scanned halftone pictures

Søren Forchhammer; Morten Forchhammer

doi:10.1109/ICPR.1988.28226

Algorithms for coding scanned halftone pictures

Søren Forchhammer, Morten Forchhammer

Technical University of Denmark

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

A method for coding scanned documents containing halftone pictures, e.g. newspapers and magazines, for transmission purposes is proposed. The halftone screen is estimated and the grey value of each dot is found, thus giving a compact description. At the receiver the picture is rescreened. A novel data structure and related algorithms for handling the digital screen without restrictions on the screen parameters is presented. Data compression rates above 20 are obtained for the halftone pictures. The algorithms are suited for implementation with fast dedicated hardware. The rescreening can also be used as digital halftoning with arbitrary screens, using lookup tables

Original language	English
Title of host publication	9th International Conference on Pattern Recognition
Volume	Volume 1
Publisher	IEEE
Publication date	1988
Pages	297-299
ISBN (Print)	0-8186-0878-1
DOIs	https://doi.org/10.1109/ICPR.1988.28226
Publication status	Published - 1988
Event	9th International Conference on Pattern Recognition - Rome, Italy Duration: 14 May 1988 → 17 May 1988 Conference number: 9 http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=220

Conference

Conference	9th International Conference on Pattern Recognition
Number	9
Country/Territory	Italy
City	Rome
Period	14/05/1988 → 17/05/1988
Internet address	http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=220

Bibliographical note

Copyright: 1988 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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@inproceedings{cc604a2d093e4f07a39cbdc20f7369b3,

title = "Algorithms for coding scanned halftone pictures",

abstract = "A method for coding scanned documents containing halftone pictures, e.g. newspapers and magazines, for transmission purposes is proposed. The halftone screen is estimated and the grey value of each dot is found, thus giving a compact description. At the receiver the picture is rescreened. A novel data structure and related algorithms for handling the digital screen without restrictions on the screen parameters is presented. Data compression rates above 20 are obtained for the halftone pictures. The algorithms are suited for implementation with fast dedicated hardware. The rescreening can also be used as digital halftoning with arbitrary screens, using lookup tables",

author = "S{\o}ren Forchhammer and Morten Forchhammer",

note = "Copyright: 1988 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE; 9th International Conference on Pattern Recognition ; Conference date: 14-05-1988 Through 17-05-1988",

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language = "English",

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AU - Forchhammer, Søren

AU - Forchhammer, Morten

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N2 - A method for coding scanned documents containing halftone pictures, e.g. newspapers and magazines, for transmission purposes is proposed. The halftone screen is estimated and the grey value of each dot is found, thus giving a compact description. At the receiver the picture is rescreened. A novel data structure and related algorithms for handling the digital screen without restrictions on the screen parameters is presented. Data compression rates above 20 are obtained for the halftone pictures. The algorithms are suited for implementation with fast dedicated hardware. The rescreening can also be used as digital halftoning with arbitrary screens, using lookup tables

AB - A method for coding scanned documents containing halftone pictures, e.g. newspapers and magazines, for transmission purposes is proposed. The halftone screen is estimated and the grey value of each dot is found, thus giving a compact description. At the receiver the picture is rescreened. A novel data structure and related algorithms for handling the digital screen without restrictions on the screen parameters is presented. Data compression rates above 20 are obtained for the halftone pictures. The algorithms are suited for implementation with fast dedicated hardware. The rescreening can also be used as digital halftoning with arbitrary screens, using lookup tables

U2 - 10.1109/ICPR.1988.28226

DO - 10.1109/ICPR.1988.28226

M3 - Article in proceedings

SN - 0-8186-0878-1

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SP - 297

EP - 299

BT - 9th International Conference on Pattern Recognition

PB - IEEE

T2 - 9th International Conference on Pattern Recognition

Y2 - 14 May 1988 through 17 May 1988

ER -

Algorithms for coding scanned halftone pictures

Abstract

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