Apparatus for and method of color compensation
Abstract
An apparatus for color compensation includes a chroma deflection generation unit to calculate a chroma deflection based on an input chroma signal and a predetermined first reference value, a hue deflection generation unit to calculate a hue deflection based on an input hue signal and a predetermined second reference value, a chroma deflection function generation unit to calculate a luminance deflection based on an input luminance signal and a predetermined third value, and a tone mapping function generation unit to output the chroma signal, hue signal and luminance signal after individually compensating these signals based on the chroma deflection, hue deflection and luminance deflection. According to the present invention, when color is distorted due to transmission flaws, the color can be compensated to be an appropriate color.
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Projected expiry passed 23 July 2023, 3.2 years ago.
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1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| US2001005222A1 | Cites | United States of America | X | Search report | 1,3,4,6,8,10,12,13,15,17,19-21,27,28,33-35,41,42 |
| US2001035989A1 | Cites | United States of America | XY | Search report | 1,2,10,11,19-28,31-42 |
| US5130935A | Cites | United States of America | Y | Search report | 3-9,12-18,29,30,43,44 |
| US5384601A | Cites | United States of America | A | Search report | 1-43 |
9 members in 5 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 20020044353 | Republic of Korea | A | |
| 20020044353 | Republic of Korea | A | |
| 2002044353 | Republic of Korea | – | |
| 2002044353 | – | – | – |
| KR20020044353 | – | – | – |
Members9
| Document | Office | Kind | |
|---|---|---|---|
| EP1385331A2 | European Patent Office (EPO) | A2 | |
| US2004017380A1 | United States of America | A1 | |
| KR20040009966A | Republic of Korea | A | |
| JP2004064792A | Japan | A | |
| CN1479529A | China | A | |
| EP1385331A3This record | European Patent Office (EPO) | A3 | |
| CN1302669C | China | C | |
| US7348992B2 | United States of America | B2 | |
| JP4464089B2 | Japan | B2 |
12 legal events, as the office reported them to INPADOC
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|---|---|---|
| Application deemed to be withdrawnWithdrawn18D | 18D | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | |
| First examination report despatched17Q | 17Q | |
| Designation fees paidAKX | AKX | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 1385331
- Publication, DOCDB
- 1385331
- Publication, EPODOC
- EP1385331
- Application
- 3016828
- Application, DOCDB
- 03016828
- Application, EPODOC
- EP20030016828
Titles3
- German
- Vorrichtung und Verfahren zur Farbkompensation
- English
- Apparatus for and method of color compensation
- French
- Appareil et procédé pour la compensation de couleur
Classification
- CPC, 4
- H04N1/6005
- H04N9/64
- H04N1/608
- H04N1/628
- IPC, 5
- H04N1 46
- G06T1 00
- H04N1 60
- H04N1 62
- H04N9 64
Designated states2
- Contracting states, 1
- Türkiye
- Extension states, 1
- North Macedonia