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Effect of Range Reduction in Video/Image Compression 1.0
File ID: 78344






Effect of Range Reduction in Video/Image Compression 1.0
Download Effect of Range Reduction in Video/Image Compression 1.0http://www.mathworks.comReport Error Link
License: Freeware
File Size: 10.0 KB
Downloads: 9
Submit Rating:
Effect of Range Reduction in Video/Image Compression 1.0 Description
Description: This script demonstrates the influence of range reduction algorithm at low bitrate encoding using JPEG encode. The range [0-255] of pixel values is mapped to [64-235] in this script using a look-up-table. Subsequently, the file is compressed to achieve the same bit-rate (file size) as that of the compressed full range image. (The quality factor chosen may need adjustment if changing the input image.) The compressed files are uncompressed for quality comparison. In case of range reduction, the range is restored back on uncompression. SSIM is used for quality metrics.

The effect of range reduction is to increase spatial correlation of neighborhood pixels and thereby improving compression ratio.

License: Freeware

Related: Comparison, restored, uncompression, Metrics, Uncompressed, Files, adjustment, changing, Input, Effect, increase, Improving, Compression, Ratio, Pixels, Spatial, Correlation, neighborhood, chosen

O/S:BSD, Linux, Solaris, Mac OS X

File Size: 10.0 KB

Downloads: 9



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