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>the compression method mimics the human eye and removes elements that would not have been processed by the human eye in the first place. That's just a marketi
by mistercow 14y ago
>the compression method mimics the human eye and removes elements that would not have been processed by the human eye in the first place.
That's just a marketing hype decsription of how all lossy compression works.
- Hari_Seldon 14y agoAgreed, reminds me of mp3. >Elements of the recordings that are easily perceived are represented with exacting precision, while other parts that are not very audible can be represented less accurately. Meanwhile, inaudible information can be discarded altogether. Fraunhofer Institute
- Xcelerate 14y agoI wrote a JPEG encoder once, and if I remember correctly you can change the quantization tables and the Huffman tables. My encoder just used the default tables in the standard, but it wouldn't surprise me to optimize these using a psychovisual fitness function.
- mistercow 14y agoYes, but the default tables in the standard do mimic the human eye's limitations. That's what increasing the quant factor on higher frequencies is.