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Using Google's WebP Image Format with Open Tools on Linux (Linux.com)

Using Google's WebP Image Format with Open Tools on Linux (Linux.com)

Posted Mar 25, 2011 15:18 UTC (Fri) by piggy (subscriber, #18693)
Parent article: Using Google's WebP Image Format with Open Tools on Linux (Linux.com)

> WebP is a lossy image format (like JPEG)
...
> — and the result compressed with lossless techniques."

Does anyone else find this juxtaposition confusing? Looking at http://code.google.com/speed/webp/ it's clear that the codec is lossy.


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Using Google's WebP Image Format with Open Tools on Linux (Linux.com)

Posted Mar 25, 2011 16:02 UTC (Fri) by fsphil (guest, #44932) [Link]

If the format is anything like JPEG then the lossless part they talk about is the last stage (after the lossy bit) when the bitstream is passed through some kind of entropy encoding, like Huffman coding or arithmetic coding.

Using Google's WebP Image Format with Open Tools on Linux (Linux.com)

Posted Mar 25, 2011 18:02 UTC (Fri) by endecotp (guest, #36428) [Link]

>> WebP is a lossy image format (like JPEG)
>...
>> — and the result compressed with lossless techniques."
>
> Does anyone else find this juxtaposition confusing?

Not until you elided a chunk describing the main part of the process, no.

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