Image processing method and system
US6603886B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2000 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Mar 31, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T1/0007
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a first image processing apparatus, a digital image signal representing an image before being subjected to shutting light processing, and an unsharp image signal representing an unsharp mask image used for shutting light processing are formed. The unsharp image signal is obtained from the digital image signal. Compression processing is performed on the digital image signal to form a compressed digital image signal. Compression processing is also performed on the unsharp image signal, thereby forming a compressed unsharp image signal. The compressed digital image and unsharp image signals are stored on a storage medium, and then delivered to a second image processing apparatus. In the second image processing apparatus, the compressed digital image and unsharp image signals are reproduced from the storage medium, and decompression processing is performed on the compressed digital image and unsharp image signals to obtain decompressed digital image and unsharp image signals. Shutting light processing is then performed in the second image processing apparatus by using both the decomposed digital image and unsharp image signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.