CN101248455A - 在数字图像处理中设置对比度的方法及装置 - Google Patents
在数字图像处理中设置对比度的方法及装置 Download PDFInfo
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- CN101248455A CN101248455A CN200680028713.2A CN200680028713A CN101248455A CN 101248455 A CN101248455 A CN 101248455A CN 200680028713 A CN200680028713 A CN 200680028713A CN 101248455 A CN101248455 A CN 101248455A
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Images
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/90—Dynamic range modification of images or parts thereof
- G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/40—Image enhancement or restoration using histogram techniques
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/57—Control of contrast or brightness
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10024—Color image
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Processing (AREA)
- Picture Signal Circuits (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
Description
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05107292.4 | 2005-08-08 | ||
EP05107292 | 2005-08-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101248455A true CN101248455A (zh) | 2008-08-20 |
Family
ID=37704324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200680028713.2A Pending CN101248455A (zh) | 2005-08-08 | 2006-07-31 | 在数字图像处理中设置对比度的方法及装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100195905A1 (zh) |
EP (1) | EP1915736A2 (zh) |
JP (1) | JP2009505469A (zh) |
CN (1) | CN101248455A (zh) |
WO (1) | WO2007017785A2 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080122857A1 (en) * | 2006-11-29 | 2008-05-29 | Chih-Lin Hsuan | Methods and devices for adjusting display characteristic of a video frame according to luminance statistics |
US8625921B1 (en) * | 2008-09-26 | 2014-01-07 | Google Inc. | Method for image processing using local statistics convolution |
KR101324230B1 (ko) | 2008-10-17 | 2013-11-01 | 삼성테크윈 주식회사 | 디지털 영상 처리기에서 히스토그램 생성 장치 및 방법 |
JP6500535B2 (ja) * | 2015-03-23 | 2019-04-17 | カシオ計算機株式会社 | 画像処理装置、画像処理方法及びプログラム |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5542003A (en) * | 1993-09-13 | 1996-07-30 | Eastman Kodak | Method for maximizing fidelity and dynamic range for a region of interest within digitized medical image display |
US6658399B1 (en) * | 1999-09-10 | 2003-12-02 | Intel Corporation | Fuzzy based thresholding technique for image segmentation |
US7139426B2 (en) * | 2002-02-12 | 2006-11-21 | Tektronix, Inc. | Histogram data collector for applying progressively adjusted histogram equalization to an oscilloscope image |
US7034843B2 (en) * | 2002-07-10 | 2006-04-25 | Genesis Microchip Inc. | Method and system for adaptive color and contrast for display devices |
US7492375B2 (en) * | 2003-11-14 | 2009-02-17 | Microsoft Corporation | High dynamic range image viewing on low dynamic range displays |
-
2006
- 2006-07-31 JP JP2008525675A patent/JP2009505469A/ja active Pending
- 2006-07-31 CN CN200680028713.2A patent/CN101248455A/zh active Pending
- 2006-07-31 WO PCT/IB2006/052606 patent/WO2007017785A2/en active Application Filing
- 2006-07-31 US US12/063,060 patent/US20100195905A1/en not_active Abandoned
- 2006-07-31 EP EP06780247A patent/EP1915736A2/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2007017785A2 (en) | 2007-02-15 |
WO2007017785A3 (en) | 2007-05-31 |
US20100195905A1 (en) | 2010-08-05 |
EP1915736A2 (en) | 2008-04-30 |
JP2009505469A (ja) | 2009-02-05 |
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Owner name: TRIADIUS MICROSYSTEMS (FAR EAST) CO., LTD Free format text: FORMER OWNER: KONINKL PHILIPS ELECTRONICS NV Effective date: 20100919 |
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Free format text: CORRECT: ADDRESS; FROM: EINDHOVEN, NETHERLANDS TO: GRAND CAYMAN ISLAND, KAMAN ISLANDS |
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Effective date of registration: 20100919 Address after: Grand Cayman, Cayman Islands Applicant after: Trident Microsystems (Far East) Ltd. Address before: Holland Ian Deho Finn Applicant before: Koninkl Philips Electronics NV |
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Owner name: ENTROPY COMMUNICATION CO., LTD. Free format text: FORMER OWNER: TRIDENT MICROSYSTEMS (FAR EAST) LTD. Effective date: 20130221 |
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Effective date of registration: 20130221 Address after: American California Applicant after: Entropic Communications, Inc. Address before: Grand Cayman, Cayman Islands Applicant before: Trident Microsystems (Far East) Ltd. |
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Application publication date: 20080820 |