Method for doing interactive image processing operations on large images
US4910611A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1989 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Jan 5, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of performing interactive image processing of a digital image with a digital computer by: PA1 1. forming a sequential order operations file of each operation that is to be performed on a digital image; PA1 2. determining which pixels of the digital image must be computed (operated) upon in order to obtain a desired output image by processing through the operations log in a reverse sequential order; PA1 3. ordering the computation of the determined pixels in a way which minimizes the amount of computer memory needed by forming chunks of dependent pixels and by calling from memory only those chunks which are needed for the final result and by deleting used chunks when they are no longer needed; and PA1 4. processing through the operations file in sequential order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.