dc.contributor.author	Jiang, Yifei	en_US
dc.contributor.author	Gui, Mindan	en_US
dc.contributor.author	Chen, Shuai	en_US
dc.contributor.author	Hu, Weiwu	en_US
dc.contributor.editor	N. Avis and S. Lefebvre	en_US
dc.date.accessioned	2014-02-06T15:44:09Z
dc.date.available	2014-02-06T15:44:09Z
dc.date.issued	2011	en_US
dc.description.abstract	Based on the insight into the essential differences between transparency and color, we present a novel alpha compression scheme, called EAC (Enhanced Alpha Compression), as an improvement to that of DXT5. EAC defines new compression data formats, and employs clustering algorithms combined with linear interpolation method used in DXT5 to compress 16 input alpha values to 64 bits. The compressed block has three possible formats, corresponding to two process modes in decompression. Results show that EAC improves the average PSNR with about 0.2 dB compared to alpha compression of DXT5 over a set of test images. Moreover, the average cell area of hardware implementation is reduced by about 25 percent, and the power consumption is lowered by 21.66 percent 26.75 percent.	en_US
dc.description.seriesinformation	Eurographics 2011 - Short Papers	en_US
dc.identifier.issn	1017-4656	en_US
dc.identifier.uri	https://doi.org/10.2312/EG2011/short/065-068	en_US
dc.publisher	The Eurographics Association	en_US
dc.subject	Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism-Texture	en_US
dc.title	Alpha Compression with Variable Data Formats	en_US

Alpha Compression with Variable Data Formats

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