Method and apparatus for storing and communicating a transform definition which includes sample values representing an input/output relation of an image transformation
US5208911A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1992 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Feb 7, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6058
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for communicating a transform definition to a destination device. The transform definition outputs image parameter data based on input image data and has a channel corresponding to each output image parameter. Each channel has at least one input table, an output table and a grid table representing an input/output relation of an image transformation. The destination device is provided with: identification data identifying the communication as that of a transform definition; version data for distinguishing the transform definition from other versions of the transform definition; size data specifying a size of one of the grid table's dimensions for each channel's grid table; with input table, output table, and grid table data of any input, output, and grid table which is shared by a plurality of channels; and with input table, output table and grid table data of any private input, output, and grid tables.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.