Browsing คณะและวิทยาลัย by Author "Fuangfar Pensiri"
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A lossless image compression algorithm using predictive coding based on quantized colors Fuangfar Pensiri; Surapong Auwatanamongkol, advisor (National Institute of Development Administration, 2011)
Predictive coding has proven to be effective for lossless image compression. The predictive coding estimates true color of a pixel based on the true colors of its neighboring pixels. To enhance the accuracy of the estimation, we propose a new and simple predictive coding algorithm that uses the quantized colors of neighboring pixels to estimate the true color of a pixel. The estimation is based on the majority of quantized colors of the three neighboring pixels. Experiments, over a set of true color 24-bit images whose colors of pixels are quantized ...