[Digikam-devel] [Bug 307602] Large TIFF files crash digiKam (>1Gb)

Christoph Feck christoph at maxiom.de
Wed Oct 24 00:40:35 BST 2012


https://bugs.kde.org/show_bug.cgi?id=307602

--- Comment #38 from Christoph Feck <christoph at maxiom.de> ---
The "180 MB/s" figure is missleading; it should probably say "50 cycles per
pixel". If your pixels are 48 bit rather than 24 bit, you would get 300 MB/s
per core on a 2.5 gigacycles/s CPU.

On the other hand, 48 bit pixels are not as compressible as 24 bit pixels. You
probably would end up compressing only the higher 8 bits per component, and
store the lower 8 bits uncompressed. But I never did any tests with 48 bit, due
to lack of representative data.

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