Image forming apparatus, density-shift correction method, and computer program product

Image forming apparatus, density-shift correction method, and computer program product

A density detector detects a first density of a first pattern and a second density of a second pattern from a density-correction determination patch. A density-correction-value calculator calculates a density correction value from the first and the second densities. A noise-occurrence determination...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: KONDOH TOMOHIDE
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
CINEMATOGRAPHY
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HANDLING RECORD CARRIERS
HOLOGRAPHY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A density detector detects a first density of a first pattern and a second density of a second pattern from a density-correction determination patch. A density-correction-value calculator calculates a density correction value from the first and the second densities. A noise-occurrence determination unit determines whether a target pixel is a noise generating pixel that causes a change of a local density due to a change in a relation with a nearby pixel. A density correction processor performs a density correction process on the target pixel by adding or subtracting the density correction value to or from the target pixel or the nearby pixel.