[Digikam-devel] [Bug 130525] Saving large (>5M) jpg's result in corrupt file

[Gilles Caulier]

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http://bugs.kde.org/show_bug.cgi?id=130525         




------- Additional Comments From caulier.gilles kdemail net  2007-02-06 22:53 -------
Marcel,

I have implemented the JPEG2000 Preview in my computer. It work fine, the quality and the size of the preview image are better (small and good), but there is a major problem with this solution :

It tooooooo long to decode JPEG2000 image preview with jasper library.

This is want mean than JPEG format is the only solution that we can use for preview. JPEG decoder is really more optimized than JPEG2000.

I will review again your patch to include it in libkexiv2. Perhaps we need to use a dedicaced and optimized JPEG codec to render a small and good JPEG preview file (instead to use the simple QT codec)

All suggestion welcome for that (link to implementation, libjpeg options optimization etc...)

Gilles