Video signal processing device and method for processing gradation step
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 31, 2009
Grant Date -
Jun 1, 2006
app pub date -
Nov 15, 2005
filing date -
Nov 30, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a horizontal-direction processing section, a comparing circuit sequentially compares pixel values of two adjacent pixels in a video image. A detecting circuit detects a horizontal flat region in which a difference between the pixel values compared by the comparing circuit is within a specified range. A horizontal boundary of the detected region is determined by the following processing. If a difference or the level (inclination) of a change in pixel value between two pixels adjacent to each other across the boundary is within a specified range, the boundary is determined to be a step in a gradation region. Vertically oriented processing is done same as processing of a horizontal direction.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully