Systems and methods for adjusting image data to form highly...

Details Systems and methods for adjusting image data to form highly... Systems and methods for adjusting image data to form highly...

2008-04-29

2008-04-29

Wu, Jingge (Department: 2624)

Image analysis

Image compression or coding

Shape, icon, or feature-based compression

C382S305000, C382S173000, C382S166000

Reexamination Certificate

active

10776603

ABSTRACT:
The image data is processed into a background plane and a plurality of foreground planes. Holes are inserted onto the background plane, in regions which are assigned to a foreground plane. The background plane is sub-sampled, and holes remaining in the sub-sampled image are filled with the average color of the non-zero sub-sampled pixels over pre-determined blocks such as JPEG blocks. If a block is entirely made of holes, the block is filled with a constant color that is propagated from the average color of a previous block. The resulting background plane is far smoother than the original image data and thus can be effectively sub-sampled and highly compressed without adverse deterioration in reconstructed image quality.

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