Title:
画像処理システム、プロジェクタ、プログラム、情報記憶媒体および白黒伸張処理方法
Document Type and Number:
Japanese Patent JP3741212
Kind Code:
B2
Abstract:
To provide an image processing system, projector, information storage medium and black and white extension processing method which can improve the quality of image when at least one of white extension and black extension is performed to video signals, a extension degree setting section is controlled by using a control section to change a degree of extension only when a change-over of scenes occurs, and luminance values of R-signals, G-signals and B-signals are extended toward one of white and black sides with the degree of extension set by the extension degree setting section by using extending sections and a luminance changing section.
Inventors:
Yukiyuki Kitazawa
Masato Nishizawa
Masato Nishizawa
Application Number:
JP2002165677A
Publication Date:
February 01, 2006
Filing Date:
June 06, 2002
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G06T5/00; H04N5/20; H04N5/57; H04N5/74; H04N9/31; H04N9/64; H04N5/202
Domestic Patent References:
| JP2001134226A | ||||
| JP4008068A | ||||
| JP7281633A | ||||
| JP4229788A |
Attorney, Agent or Firm:
Inoue Ichi
Yukio Fuse
Mitsue Obuchi
Yukio Fuse
Mitsue Obuchi