Image compressing apparatus, compressed image outputting apparatus, image compression method, and recording medium
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 11, 2013
Grant Date -
Jul 21, 2011
app pub date -
Jan 18, 2011
filing date -
Jan 18, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a color image processing apparatus, in a compression process section (an image compressing apparatus), when an original document is compressed, the edges of black texts and/or line drawings in the original document is detected, then a foreground layer (a first image) is generated in which the detected edges are expressed in the form of a binary image, and then lossless compression is performed on the foreground layer. Further, a background layer (a second image) is generated in which a density difference of the edges from the other parts in the original document is reduced, and then lossy compression is performed on the background layer. Then, these layers are combined into a compressed file.
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