ES2199076B1 - Circuito de adaptacion de luminancia basado en interacciones locales. - Google Patents
Circuito de adaptacion de luminancia basado en interacciones locales.Info
- Publication number
- ES2199076B1 ES2199076B1 ES200201703A ES200201703A ES2199076B1 ES 2199076 B1 ES2199076 B1 ES 2199076B1 ES 200201703 A ES200201703 A ES 200201703A ES 200201703 A ES200201703 A ES 200201703A ES 2199076 B1 ES2199076 B1 ES 2199076B1
- Authority
- ES
- Spain
- Prior art keywords
- interactions
- adaptation
- circuit
- local
- local interactions
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 230000003993 interaction Effects 0.000 title abstract 3
- 230000006978 adaptation Effects 0.000 title abstract 2
- 230000001413 cellular effect Effects 0.000 abstract 1
Classifications
-
- 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
- G06T5/20—Image enhancement or restoration using local operators
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/60—Image enhancement or restoration using machine learning, e.g. neural networks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/36—Applying a local operator, i.e. means to operate on image points situated in the vicinity of a given point; Non-linear local filtering operations, e.g. median filtering
-
- 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
- G06T2207/20—Special algorithmic details
- G06T2207/20004—Adaptive image processing
- G06T2207/20012—Locally adaptive
-
- 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
- G06T2207/20—Special algorithmic details
- G06T2207/20084—Artificial neural networks [ANN]
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Multimedia (AREA)
- Image Analysis (AREA)
- Processing Of Color Television Signals (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
Circuito de adaptación de luminancia basado en interacciones locales. El sistema propuesto está basado en un autómata celular. Su funcionamiento consiste esencialmente en un conjunto de ecuaciones diferenciales. Las ecuaciones están acopladas exclusivamente por medio de interacciones entre los elementos vecinos, es decir, cada célula intercambia información exclusivamente con los cuatro vecinos más próximos. Debido a su naturaleza local, el sistema es susceptible de ser implementado en VLSI, y utilizado por una amplia gama de circuitos en donde sea precisa una normalización de la señal de entrada en una etapa de procesado posterior, que tenga un rango dinámico de niveles de luminosidad restringido.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200201703A ES2199076B1 (es) | 2002-07-19 | 2002-07-19 | Circuito de adaptacion de luminancia basado en interacciones locales. |
PCT/ES2003/000366 WO2004010378A1 (es) | 2002-07-19 | 2003-07-15 | Circuito de adaptación de luminancia basado en interacciones locales |
AU2003250253A AU2003250253A1 (en) | 2002-07-19 | 2003-07-15 | Luminance-matching circuit based on local interactions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200201703A ES2199076B1 (es) | 2002-07-19 | 2002-07-19 | Circuito de adaptacion de luminancia basado en interacciones locales. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2199076A1 ES2199076A1 (es) | 2004-02-01 |
ES2199076B1 true ES2199076B1 (es) | 2005-06-16 |
Family
ID=30470581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES200201703A Expired - Fee Related ES2199076B1 (es) | 2002-07-19 | 2002-07-19 | Circuito de adaptacion de luminancia basado en interacciones locales. |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003250253A1 (es) |
ES (1) | ES2199076B1 (es) |
WO (1) | WO2004010378A1 (es) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5182657A (en) * | 1989-04-27 | 1993-01-26 | Casio Computer Co., Ltd. | Image processing apparatus including binary data producing unit |
US5140670A (en) * | 1989-10-05 | 1992-08-18 | Regents Of The University Of California | Cellular neural network |
WO1995006288A2 (en) * | 1993-08-26 | 1995-03-02 | The Regents Of The University Of California | Cnn bionic eye or other topographic sensory organs or combinations of same |
US5535019A (en) * | 1994-09-15 | 1996-07-09 | Xerox Corporation | Error diffusion halftoning with homogeneous response in high/low intensity image regions |
US5936684A (en) * | 1996-10-29 | 1999-08-10 | Seiko Epson Corporation | Image processing method and image processing apparatus |
JP2951910B2 (ja) * | 1997-03-18 | 1999-09-20 | 松下電器産業株式会社 | 撮像装置の階調補正装置及び階調補正方法 |
JP2866935B2 (ja) * | 1997-04-18 | 1999-03-08 | 工業技術院長 | カラー画像の画質改善方法及びその装置 |
WO2000063838A1 (en) * | 1999-04-16 | 2000-10-26 | Izahi Corporation | Automatic black level, luminosity and color compensation for digital still images and digital video |
US6650774B1 (en) * | 1999-10-01 | 2003-11-18 | Microsoft Corporation | Locally adapted histogram equalization |
-
2002
- 2002-07-19 ES ES200201703A patent/ES2199076B1/es not_active Expired - Fee Related
-
2003
- 2003-07-15 AU AU2003250253A patent/AU2003250253A1/en not_active Abandoned
- 2003-07-15 WO PCT/ES2003/000366 patent/WO2004010378A1/es not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2004010378A1 (es) | 2004-01-29 |
AU2003250253A1 (en) | 2004-02-09 |
ES2199076A1 (es) | 2004-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 20040201 Kind code of ref document: A1 |
|
FG2A | Definitive protection |
Ref document number: 2199076B1 Country of ref document: ES |
|
FD2A | Announcement of lapse in spain |
Effective date: 20180808 |