Method and system for using calibration patches in electronic film processing
US6439784B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Aug 17, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D5/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and system (100) for using reference patches (108) to enhance electronic film processing of a scene image (104) contained on a first area of a film (112) include creating a reference patch (108) on a second area of the film (112); coating the film (112) with a developing solution to form a scene image (104) and a patch image (108); scanning the film (112) coated with the developing solution to generate signals corresponding to digital representations of the scene image (104) and the patch image (108); calculating image processing parameters from the signals associated with the patch image (108); and processing the digital representations of the scene image (104) using the image processing parameters calculated from the patch image (108) to produce color values which more accurately reflect the original scene and which are pleasing to the eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.