Image analysis – Color image processing – Compression of color images
Patent
1996-04-30
1998-10-13
Couso, Jose L.
Image analysis
Color image processing
Compression of color images
382232, 345431, G06K 900
Patent
active
058224521
ABSTRACT:
A system and method for compressing and decompressing a texture image that: (1) compresses each texel to 8 bits, and when decompressed, each texel is of a quality comparable to a 256 color palettized image; (2) increases the efficiency of the decompression system and method by eliminating complex operations, e.g., multiplication; and (3) increases the efficiency of the system and method when switching between textures that use different palettes, when compared to conventional system and methods. The invention compresses a texture image, stores the compressed texture image, and quickly and efficiently decompresses the texture image when determining a value of a pixel. The texture image compression technique utilizes a palletized color space that more closely matches the colors in the texture image while allocating an unequal number of bits to the color channels. Each texel in the texture image is converted to an 8-bit value in the selected color space, and a decompression table is generated that represents the RGB values for the each texel stored in the selected color space. In order to map the texture image to the object, one or more texels that are associated with each pixel are decompressed. The present invention quickly and efficiently decompresses each texel using a hardware decompression unit. The decompression unit does not perform any multiplication operations.
REFERENCES:
patent: 4905164 (1990-02-01), Chandler
patent: 4965745 (1990-10-01), Economy et al.
Margeson, III James E.
Sellers Scott
Sundaresan Murali
Tarolli Gary
3Dfx Interactive, Inc.
Couso Jose L.
Do Anh Hong
LandOfFree
System and method for narrow channel compression does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for narrow channel compression, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for narrow channel compression will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-322038