I have removed the option "Force baseline JPEG" from the advancedoptions in the JPEG save dialog. This option was not very useful andwas not well understood by most users. From now on, it will alwaysdefault to TRUE, meaning that GIMP will only generate baseline JPEGfiles. In order to avoid breaking backwards compatibility withthird-party scripts and plug-ins, the PDB API for file_jpeg_save() isstill the same as before, so you can play with the baseline parameterfrom a script if you really think that you need to set it to FALSE(but this is very unlikely). So what did that option do? The IJG JPEG library used by GIMP cangenerate non-baseline quantization tables if that option is set toFALSE. This adds a few extra bits of precision to the quantizationtables that have large divisors (large divisors = low quality) inorder to preserve a bit more information and generate slightly largerfiles at very low quality levels. But this also reduces compatibilitybecause some JPEG decoders are unable to read files with non-baselinetables. It is safer to always set this option to TRUE and onlygenerate JPEG files with baseline quantization tables. Most users do not know that the baseline and non-baseline quantizationtables are identical except for quality levels below 23. And thedifferences between them only start being visible in the image if thequality level is lower than 15 or so. So this option is uselessexcept at very low quality levels, which is something that most GIMPusers never use. Instead of using non-baseline tables for very lowquality levels, it is better to increase the quality level by two orthree points, which will give almost the same result (slightly betterquality, slightly larger files). So that option is now gone from the JPEG save dialog. Of course youcan still ask to get it back, but then you'd better come up with verygood reasons... -Raphaël_______________________________________________Gimp-developer mailing listGimp-developer@xxxxxxxxxxxxxxxxxxxxxxxxxxx://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
