DE2940439A1 - Verfahren zur umwandlung von digitalen chrominanz-signalen eines rechtwinkligen farbkoordinaten-systems in digitale farbton-signale und saettigungs-signale eines polaren farbkoordinaten-systems - Google Patents
Verfahren zur umwandlung von digitalen chrominanz-signalen eines rechtwinkligen farbkoordinaten-systems in digitale farbton-signale und saettigungs-signale eines polaren farbkoordinaten-systemsInfo
- Publication number
- DE2940439A1 DE2940439A1 DE19792940439 DE2940439A DE2940439A1 DE 2940439 A1 DE2940439 A1 DE 2940439A1 DE 19792940439 DE19792940439 DE 19792940439 DE 2940439 A DE2940439 A DE 2940439A DE 2940439 A1 DE2940439 A1 DE 2940439A1
- Authority
- DE
- Germany
- Prior art keywords
- digital
- signals
- quadrant
- color
- coordinate system
- 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.)
- Granted
Links
- 230000009466 transformation Effects 0.000 title claims description 26
- 230000015654 memory Effects 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims description 18
- 230000006870 function Effects 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000001131 transforming effect Effects 0.000 abstract 1
- 208000037516 chromosome inversion disease Diseases 0.000 description 10
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/02—Digital function generators
- G06F1/03—Digital function generators working, at least partly, by table look-up
- G06F1/035—Reduction of table size
- G06F1/0353—Reduction of table size by using symmetrical properties of the function, e.g. using most significant bits for quadrant control
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/462—Computing operations in or between colour spaces; Colour management systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/56—Processing of colour picture signals
- H04N1/60—Colour correction or control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/64—Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor
- H04N1/646—Transmitting or storing colour television type signals, e.g. PAL, Lab; Their conversion into additive or subtractive colour signals or vice versa therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2101/00—Indexing scheme relating to the type of digital function generated
- G06F2101/06—Co-ordinate transformations
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Image Processing (AREA)
- Processing Of Color Television Signals (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2940439A DE2940439C2 (de) | 1979-10-05 | 1979-10-05 | Schaltungsanordnung zur Umwandlung von digitalen Chrominanz-Signalen in digitale Farbton-Signale und Sättigungs-Signale |
PCT/DE1980/000138 WO1981001065A1 (en) | 1979-10-05 | 1980-09-26 | Process for transforming chrominance numerical signals of an orthogonal system of colour coordinates into numerical colour signals and into saturation signals of a system of colour coordinates and transformation circuit |
JP55502178A JPH0222420B2 (es) | 1979-10-05 | 1980-09-26 | |
BR8008858A BR8008858A (pt) | 1979-10-05 | 1980-09-26 | Processo para a transformacao de sinais digitais de crominancia de um sistema retangular de coordenadas cromaticas em sinais digitais de tonalidade e sinais de saturacao de um sistema polar de coordenadas cromaticas e conexao de transformacao |
US06/269,015 US4500972A (en) | 1979-10-05 | 1980-09-26 | Apparatus for converting digital chrominance signals of a cartesian color coordinate system into digital color signals and saturation signals of a polar color coordinate system and a transformation circuit |
DD80224333A DD153458A5 (de) | 1979-10-05 | 1980-10-03 | Verfahren zur umwandlung von digitalen chrominanz-signalen eines rechtwinkligen farbkoordinaten-systems in digitale farbton-signale und saettigungs-signale eines polaren farbkoordinaten-systems und transformationsschaltung |
IT25150/80A IT1133180B (it) | 1979-10-05 | 1980-10-06 | Procedimento per la conversione di segnali digitali di crominanza di un sistema rettangolare di coordinate di colore in segnali digitali di intensita' di colore e segnali di saturazione di un sistema polare di coordinate di colori,e circuito di trasformazione |
BE0/202677A BE885994A (fr) | 1979-10-05 | 1980-10-31 | Procede et montage de conversion de signaux numeriques et chrominance en signaux numeriques de nuance |
EP80901794A EP0036418B1 (de) | 1979-10-05 | 1981-04-21 | Verfahren zur umwandlung von digitalen chrominanz-signalen eines rechtwinkligen farbkoordinaten-systems in digitale farbton-signale und sättigungs-signale eines polaren farbkoordinaten-systems und tranformationsschaltung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2940439A DE2940439C2 (de) | 1979-10-05 | 1979-10-05 | Schaltungsanordnung zur Umwandlung von digitalen Chrominanz-Signalen in digitale Farbton-Signale und Sättigungs-Signale |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2940439A1 true DE2940439A1 (de) | 1981-05-14 |
DE2940439C2 DE2940439C2 (de) | 1985-01-17 |
Family
ID=6082815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2940439A Expired DE2940439C2 (de) | 1979-10-05 | 1979-10-05 | Schaltungsanordnung zur Umwandlung von digitalen Chrominanz-Signalen in digitale Farbton-Signale und Sättigungs-Signale |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2940439C2 (es) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2640833A1 (de) * | 1975-09-12 | 1977-03-17 | Dainippon Screen Mfg | Verfahren zur farbkorrektur fuer reproduktionszwecke |
-
1979
- 1979-10-05 DE DE2940439A patent/DE2940439C2/de not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2640833A1 (de) * | 1975-09-12 | 1977-03-17 | Dainippon Screen Mfg | Verfahren zur farbkorrektur fuer reproduktionszwecke |
Also Published As
Publication number | Publication date |
---|---|
DE2940439C2 (de) | 1985-01-17 |
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Legal Events
Date | Code | Title | Description |
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OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
AF | Is addition to no. |
Ref country code: DE Ref document number: 2923477 Format of ref document f/p: P |
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AF | Is addition to no. |
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D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: LINOTYPE-HELL AG, 6236 ESCHBORN, DE |
|
8340 | Patent of addition ceased/non-payment of fee of main patent |