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BitJazz
SheerVideo Power
For real-world footage, SheerVideo ranks among the most powerful lossless image compressors in existence.
In fact, for native video (Y'CbCr[A]) footage, where SheerVideo's lossless video compression power averages 2.43 for 4:2:2 and 2.84 for 4:4:4,
SheerVideo is the only perfect-fidelity QuickTime codec that does any compression at all.
For CGI and digitized film (RGB[A]) content, SheerVideo's mean lossless image compression power of 2.20
makes it 20% more powerful than PNG (1.80) and 100% more powerful than Apple's Animation codec (1.05),
and only 11% less powerful than the reigning champion, PhotoJazz.
With SheerVideo's nondestructive compression power, you save an average of 60% of your storage space and transmission bandwidth.
So you fit twice as much uncompressed-quality video on your disk or tape.
The next two pages present a line-up of all the perfect-fidelity software QuickTime codecs we know of,
measuring their compression performance, in terms of power and space savings,
on the Kodak Test Set,
the gold standard for real-world lossless image compression research.
The following pages give detailed tables of the peformance of the 8-bit Sheer codecs on individual test images.
Power
Space Savings
RGB 8bf p Data
Y'CbCr 8bv 4:4:4p Data
Y'CbCr 8bv 4:2:2p Data
Y'CbCr 8bw 4:2:2p Data
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