Texture Compression using Wavelet Decomposition
| Autor: | Georgios Papaioannou, Pavlos Mavridis |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Lossless compression
Texture compression business.industry Computer science ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Data compression ratio Data_CODINGANDINFORMATIONTHEORY Adaptive Scalable Texture Compression Computer Graphics and Computer-Aided Design Grayscale S3 Texture Compression Computer vision Artificial intelligence business Algorithm Color Cell Compression Image compression Data compression |
| Zdroj: | Computer Graphics Forum. 31:2107-2116 |
| ISSN: | 0167-7055 |
| DOI: | 10.1111/j.1467-8659.2012.03203.x |
| Popis: | In this paper we introduce a new fixed-rate texture compression scheme based on the energy compaction properties of a modified Haar transform. The coefficients of this transform are quantized and stored using standard block compression methods, such as DXTC and BC7, ensuring simple implementation and very fast decoding speeds. Furthermore, coefficients with the highest contribution to the final image are quantized with higher accuracy, improving the overall compression quality. The proposed modifications to the standard Haar transform, along with a number of additional optimizations, improve the coefficient quantization and reduce the compression error. The resulting method offers more flexibility than the currently available texture compression formats, providing a variety of additional low bitrate encoding modes for the compression of grayscale and color textures. © 2012 Wiley Periodicals, Inc. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|