Invention Grant
US07990474B2 Image correction circuit, image correction method and image display
失效
图像校正电路,图像校正方法和图像显示
- Patent Title: Image correction circuit, image correction method and image display
- Patent Title (中): 图像校正电路,图像校正方法和图像显示
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Application No.: US11746223Application Date: 2007-05-09
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Publication No.: US07990474B2Publication Date: 2011-08-02
- Inventor: Shigeru Harada , Kazuhito Kobayashi , Yoshifumi Dochi , Tomonori Tsutsumi
- Applicant: Shigeru Harada , Kazuhito Kobayashi , Yoshifumi Dochi , Tomonori Tsutsumi
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-143312 20060523
- Main IPC: H04N5/21
- IPC: H04N5/21 ; H04N9/64

Abstract:
An image correction circuit capable of easily achieving adaptive color correction on the basis of a luminance correction amount is provided. An image correction circuit includes: a luminance correction section for performing luminance correction on input image data; and a color correction section for performing adaptive color correction on input image data on the basis of the following formula (1): Cout∝Cin×[1+M×(ΔY/L)] (1) where Cout represents a chrominance signal after color correction, Cin represents a chrominance signal before color correction, M represents an adaptive color correction magnitude which is a fixed positive value, ΔY represents the total amount of luminance correction by the luminance correction section, L represents a fixed positive value satisfying L
Public/Granted literature
- US20070273793A1 IMAGE CORRECTION CIRCUIT, IMAGE CORRECTION METHOD AND IMAGE DISPLAY Public/Granted day:2007-11-29
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