[Digikam-devel] [Bug 125387] Simulate changes to images only

Marcel Wiesweg marcel.wiesweg at gmx.de
Wed Sep 6 13:45:25 CEST 2006

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------- Additional Comments From marcel.wiesweg gmx de  2006-09-06 13:45 -------
One idea I have had for some time is to introduce links between images, "these images are derived from that", "show original image of this". At a closer look, this feature is a subset of the features requested here.

First, how to store actions. I think we should do it in the db, and additionally we can store it either in metadata or in extra files.

I assume that some actions (gamma adjustment, cropping) can easily be carried out on the fly, while others (most image plugins) require lengthier computation.
So we should have the possibility to store action results as "real files" on disk, or "virtually". If the user clicks "save" in IE, we should assume he actually wants to store, or offer the choice. One option is to keep the original as a "digital negative", another option is not do this, no problem.

Say the users opts to keep the original and store a new version, we would store all actions applied to the image, and from which image it is derived.

If only the actions shall be stored, the file is unchanged on disk, but the actions are stored. (problem: what to do with thumbnail?)

These are only first thoughts, we should take our time to think about this.

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