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2 Commits

Author SHA1 Message Date
Pascal Massimino
6c6736816c Improved near-lossless mode. 
Compared to previous mode it gives another 10-30% improvement in compression keeping comparable PSNR on corresponding quality settings.

Still protected by the WEBP_EXPERIMENTAL_FEATURES flag.

Change-Id: I4821815b9a508f4f38c98821acaddb74c73c60ac
 2014-10-15 10:57:21 -07:00
skal
b5a36cc9ad add -near_lossless [0..100] experimental option 
This compresses the uimage using lossless compression and controlable
decimating pre-process.
Code is under WEBP_EXPERIMENTAL_FEATURE while it's being experimented with.

Change-Id: I8b7f4cfcc3c6afc52a556102842bdbb045ed5ee8
 2014-08-05 19:17:10 +02:00