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Adaptive Lossless Prediction based Image Compression |
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PP: 153-160 |
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Author(s) |
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Raka Jovanovic,
Rudolph A. Lorentz,
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Abstract |
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| Predictive methods of image compression traditionally visit the pixels to be compressed in raster scan order, making a
prediction for that pixel and storing the difference between the pixel and its prediction. We introduce a new predictive lossless
compression method in which the order in which the pixels are visited is determined using a predictor based on previously known
pixel values. This makes it possible to reconstruct the image without storing this path. In our tests on standard benchmark images; we
show that our approach gives a significant improvement to row wise use of one or two dimensional predictors and gives results similar
to or better than standard compression algorithms like median compression and JPG 2000. |
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