Distinguishing positive and negative films system and method
US7164511B2 · kind B2 · utility
2Cited by
78References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2000 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Sep 23, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0416
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for scanning a photographic film using a scanner automatedly identifies the film as either a positive or negative and controls the scanner settings to perform the scan accordingly. The method includes performing a pre-scan of the film, sampling a color density of at least one location of the film, comparing the color density to a standard range indicating an orange bias for the at least one location, and setting the scanner to treat the film as a negative if the color density is within the standard range and to otherwise treat the film as a positive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.