[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  2007-05-20 14:52 -------
>Adding support to load preview first, then high quality preview

>A slightly extended version of the patch. Now the fast preview is loaded first,
>and then the full version, as suggested by Arnd.

It work fine here excepted a little problem if you change the zoom factor between the moment of low quality preview appear and high quality preview is loaded. The preview is reseted to be fit on window.

A solution is to get the zoom factor and the position of low quality preview to be apply on high quality preview.

>For RAW images this has the effect that images get a bit darker when the full
>version is loaded, as it seems that dcraw has a slightly different idea about
>white balance or whatever as the camera creating the preview. Dont know if this
>darkening is confusing or not.

Yes. This is how dcraw decode WB settings. The embeded preview in rAW file is a JPEG image with a WB set by the camera device. dcraw try to reproduce this settings to apply on RAW decoded image, but it's not perfect... 

I see to issues for this problem:

1/ a general solution is to add an indicator behing preview panels to indicate what the user can see (low | high quality preview)

2/ an option from menu (with shortcut) to toogle manually the high quality loading on demand. Personally, i work with low quality. It perfect for me.

3/ an option in config panel to :

- load only low preview (the user can toogle manually on hjigh preview following 2/.
- load low preview and after high preview automaticly.
- load only high preview.

Arnd, Marcel, Mik, Fabien, etc... What do you think about ?

Gilles