[Digikam-devel] [digikam] [Bug 281095] BQM AdjustCurve tool : curves adjustment doesn't work

Gilles Caulier caulier.gilles at gmail.com
Fri Mar 22 09:14:13 GMT 2013


--- Comment #13 from Gilles Caulier <caulier.gilles at gmail.com> ---

If you look my previous comment #2 and #5, the problem still here. I don't have
fixed code.

It's due to a lack of curve data transformation code between smooth and draw
mode. If i remember, one transformation is missing, which make black image

Curve data are managed in draw when image is processed. Why ? to not lack any
information. When you play curve in smooth mode (16 points max) and must be
transformed as draw. this want mean one point for one value under 16 bits :
65536 points. This is 16 bits in all cases and switch from 8 bits to 16 bits
transformation must be done (and vis-versa).

If i remember this last transformation is missing.

Gilles Caulier

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