IMAGE FORMING APPARATUS

To provide an image forming apparatus that can perform density correction control with high accuracy.SOLUTION: An image forming apparatus is provided which performs image formation by correcting an input image by using a correction amount according to output gamma characteristics. The apparatus cali...

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Bibliographische Detailangaben
Hauptverfasser:	OISHI SAEKO, YOKOTE AKIHITO, TAKEMURA TAICHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CINEMATOGRAPHY CORRECTION OF TYPOGRAPHICAL ERRORS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MAGNETOGRAPHY PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	To provide an image forming apparatus that can perform density correction control with high accuracy.SOLUTION: An image forming apparatus is provided which performs image formation by correcting an input image by using a correction amount according to output gamma characteristics. The apparatus calibrates the correction amount according to a change in the output gamma characteristics based on a density value that is the weighted average of a density value obtained by measuring the density of an image obtained through the image formation and a density value predicted based on a condition for the image formation.SELECTED DRAWING: Figure 12 【課題】精度の高い濃度補正制御を可能とした画像形成装置を提供するこ【解決手段】出力ガンマ特性に応じた補正量で入力画像を補正して画像形成する画像形成装置が提供される。この装置は、画像形成された画像の濃度を測定した濃度値と、画像形成の条件に基づいて予測した濃度値とを加重平均した濃度値に基づいて、前記出力ガンマ特性の変化に応じて補正量を較正する。【選択図】図１２