[Digikam-devel] [Bug 145198] light-table should also work with the full image

[Gilles Caulier]

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http://bugs.kde.org/show_bug.cgi?id=145198         




------- Additional Comments From caulier.gilles gmail com  2007-05-19 12:39 -------
>Tested it with big images and didn't notice time performance hit. Of
>course it goes through RAM faster than 6-year old through chocolate bar
>but it was also earlier the case. One unpleasant thing: with very low
>zoom values scaled images look really ugly. Is it possible to turn on
>smoothing for low zoom values (or use preview version as Arnd
>suggested)?

Yes. You see a title side effect generated by the new fastScale algorithm from Antonio. I have surprized than nobody have seen this problem before. I have discovers it many weeks ago (:=)))

To have already investigated about this problem, i'm sure than it's a FastScale implementation failure. If i use Qt:smoothScale instead, all is fine (but more slow of course). This problem only appear to high zoom level. This is not relevant of JPEG compression artifact. Try with a TIFF or PNG image. It's the same.

Nota : if we use DImg::scale implementation, all work fine.

I have pinged Antonio about this problem, but I have no recieve a response yet.

Marcel, like FastScale algorithm sound like very simple to understand, we can try to with it (:=)))

Gilles