[Digikam-devel] [Bug 261698] Zoom to 100% does not map 1 picture pixel to 1 screen pixel

[Gilles Caulier]

https://bugs.kde.org/show_bug.cgi?id=261698





--- Comment #7 from Gilles Caulier <caulier gilles gmail com>  2010-12-31 14:38:29 ---
Preview is a way to load image quickly.

For JPEG, a reduced decoded image is processed. It's a feature provided by
libjpeg.

For RAW, these formats are container. RAW data, JPEG preview, metadata, etc...
In this case JPEG preview is a reduced version of RAW already processed by the
camera when you shot. It's used to display image on device screen or on a tv. 

For other format, as PNG, TIFF, PGF, we load a preview JPEG image from IPTC or
XMP metadata. there is a tag dedicated for that.

Gilles Caulier

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