Systems and methods for generating a transfer function to process image data
US8891131B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2014 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Feb 26, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/843
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system including an image data source and a transfer function module. The image data source is configured to provide image data. The transfer function module is configured to generate a transfer function to process the image data, define a first region of the transfer function, wherein a curvature of the transfer function in the first region is less than or equal to a threshold, define a second region of the transfer function, wherein a curvature of the transfer function in the second region is greater than the threshold, allocate a first number of sample inputs to the first region, allocate a second number of the sample inputs to the second region, wherein the second number is greater than the first number, map the sample inputs to sample outputs using the transfer function, and populate entries of a lookup table with the sample outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.