Invention Grant
- Patent Title: Streak compensation in compressed image paths
- Patent Title (中): 压缩图像路径中的条纹补偿
-
Application No.: US12246690Application Date: 2008-10-07
-
Publication No.: US08284450B2Publication Date: 2012-10-09
- Inventor: Edgar Bernal , Robert Paul Loce
- Applicant: Edgar Bernal , Robert Paul Loce
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Fay Sharpe LLP
- Main IPC: G06K15/00
- IPC: G06K15/00

Abstract:
In accordance with the present disclosure, there is provided a method for compensating tones on a compressed digital image data. The method comprises generating the compressed digital image from an input digital image data using a wavelet-based compression method; recovering a low resolution version of the input digital image data from the compressed digital image data by partially decompressing the compressed digital image; applying compensating tone reproduction curves (TRC) to the low resolution version of the input digital image data to generate a compensated low resolution image; re-compressing the image using the compensated low resolution image; and, subsequently decompressing all of the compensated pixel arrays to produce decompressed compensated image data.
Public/Granted literature
- US20100085603A1 STREAK COMPENSATION IN COMPRESSED IMAGE PATHS Public/Granted day:2010-04-08
Information query