[Digikam-devel] [Bug 118539] wish: lossless image-editor for JPEGs

[S.Burmeister]

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.
         
http://bugs.kde.org/show_bug.cgi?id=118539         




------- Additional Comments From sven.burmeister gmx net  2006-03-24 13:23 -------
I stated: _before_ using digikam. It's good that the handbook is of a high quality and people should use it. BUT people do not read and should not have to read the manual before trying to use digikam the first time. They import their pictures and try digikam's functions. This should not lead to unnoticed data-loss!

I never said that all the information should be put in the save-dialogue. But it is just a fact that most people first use an app and then go into details. So reading the manual is not the first thing they do, sorry.

If the user opens an image, edits it and saves it, how is one informed about the loss of data? There is no "lossy-information" for "save" because the format cannot /is not changed, i.e. there is no file-dialogue. This is/would only visible for "save as".

So I still think that there is the need to warn before saving JPEGs. Users that remove red-eyes do not use "save as" but "save" and hence have no chance to see the "lossy-warning" in the file-dialogue.

Of course it is true that this is annoying for users that do know about this. Yet, as with all things preventing data-loss, it is necessary! Especially as the solution is that simple. "JPEG is a lossy file-format... More information can be found here (link)" and a checkbox "do not warn anymore". This prevents data-loss and only adds one click for those that know already about it. A small price to pay for preventing data-loss.

I agree about the meta-data being an important piece of information. Hence PNG should not be the recommended format, but only a format that is lossless in terms of the picture and meta-data.