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TW200726265A - Adaptive color adjustment method and device for digital images in a display apparatus - Google Patents

Adaptive color adjustment method and device for digital images in a display apparatus

Info

Publication number
TW200726265A
TW200726265A TW094147716A TW94147716A TW200726265A TW 200726265 A TW200726265 A TW 200726265A TW 094147716 A TW094147716 A TW 094147716A TW 94147716 A TW94147716 A TW 94147716A TW 200726265 A TW200726265 A TW 200726265A
Authority
TW
Taiwan
Prior art keywords
digital images
display apparatus
adjustment method
analyzed
color adjustment
Prior art date
Application number
TW094147716A
Other languages
Chinese (zh)
Other versions
TWI295895B (en
Inventor
Chun-Yen Chen
Chao-Wei Ho
Original Assignee
Ind Tech Res Inst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW94147716A priority Critical patent/TWI295895B/en
Publication of TW200726265A publication Critical patent/TW200726265A/en
Application granted granted Critical
Publication of TWI295895B publication Critical patent/TWI295895B/en

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  • Image Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Picture Signal Circuits (AREA)

Abstract

An adaptive color adjustment method and device for digital images in a display apparatus are disclosed. In displaying digital images, the luma components of the images are analyzed for stretching the dynamic range and enhancing the contrast. After a weighting down histogram is obtained, the dynamic range of the luma components are analyzed and stretched, and the image contrast are analyzed and enhanced based on the weighting down histogram. In the dynamic range stretch and the contrast enhancement, lookup tables are automatically and adaptively generated and/or selected. In the meanwhile, a chroma compensation index is generated to get chroma performing. According to the lookup tables, the image luma is adaptively enhanced and the color image quality is increased.
TW94147716A 2005-12-30 2005-12-30 Adaptive color adjustment method and device for digital images in a display apparatus TWI295895B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94147716A TWI295895B (en) 2005-12-30 2005-12-30 Adaptive color adjustment method and device for digital images in a display apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94147716A TWI295895B (en) 2005-12-30 2005-12-30 Adaptive color adjustment method and device for digital images in a display apparatus

Publications (2)

Publication Number Publication Date
TW200726265A true TW200726265A (en) 2007-07-01
TWI295895B TWI295895B (en) 2008-04-11

Family

ID=45068569

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94147716A TWI295895B (en) 2005-12-30 2005-12-30 Adaptive color adjustment method and device for digital images in a display apparatus

Country Status (1)

Country Link
TW (1) TWI295895B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9710892B2 (en) 2015-10-21 2017-07-18 Chunghwa Picture Tubes, Ltd. Image enhancement method and image processing apparatus thereof
TWI766795B (en) * 2021-08-23 2022-06-01 大陸商集創北方（珠海）科技有限公司 Adaptive current limiting method for self-luminous display, driving circuit and self-luminous display

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI409794B (en) * 2009-11-26 2013-09-21 Chunghwa Picture Tubes Ltd Color calibrator of display apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9710892B2 (en) 2015-10-21 2017-07-18 Chunghwa Picture Tubes, Ltd. Image enhancement method and image processing apparatus thereof
TWI766795B (en) * 2021-08-23 2022-06-01 大陸商集創北方（珠海）科技有限公司 Adaptive current limiting method for self-luminous display, driving circuit and self-luminous display

Also Published As

Publication number Publication date
TWI295895B (en) 2008-04-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees