Method of and apparatus for compensating image in image reproduction system

An image compensating method and an apparatus for the same which improves the quality of an image to be reproduced by an image reproduction system. A condition of an observed pixel or object pixel is subjected to MTF compensation to provide clear cut boundaries to an image relative to the background...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SUZUKI, KAZUHIRO, OHKOUCHI, FUSAKICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	An image compensating method and an apparatus for the same which improves the quality of an image to be reproduced by an image reproduction system. A condition of an observed pixel or object pixel is subjected to MTF compensation to provide clear cut boundaries to an image relative to the background. Then, random noise compensation is effected for the condition of the object pixel after the MTF compensation, taking account of conditions of surrounding pixels or MTF-compensated conditions of the surrounding pixels. This removes smear which might appear in a sheet of paper due to random noise. These two kinds of compensation allows an image to be reproduced to a remarkable quality.