[Digikam-users] Downloading JPEG is amazingly slow

Gabriel Kerneis kerneis at pps.jussieu.fr
Fri Mar 19 08:34:23 CET 2010


On Thu, Mar 18, 2010 at 12:44:07PM +0100, Leonardo Giordani wrote:
> Pay attention to "on-the-fly" JPEG conversion to PNG, you find it in
> the download window (where all the thumbnails of your camera images
> are shown), in the last tab on the right (if I remember correctly).

This was not selected, but I found the bottle-neck: in the same tab, the
template was set to "To remove" instead of "Do not change".  Using "Do
not change" makes things fast, so thanks for pointing me to this part of
the configuration :-)

> PNG is not lossy, so converting a JPEG to PNG enables you to edit it
> without losing quality every time you save it. Obviously, conversion
> is not cheap. If you do not plan to edit your images or are simply
> happy with plain JPEG, turn off this option and download will speed
> up.

I rather use my RAW files when I wish lossless operation (and save the
result as PNG).  But having JPEG is handy to share files quickly with

Gabriel Kerneis

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