[Bf-committers] Patche [#21750] Add luma waveform and vectorscope to image view

[Xavier Thomas]

Hello,

I posted a new version of the waveform vectorscope patch. This time it
apply correctly agianst svn (for now), and a lot of goodies too.

https://projects.blender.org/tracker/index.php?func=detail&aid=21750&group_id=9&atid=127


I reworked the patch a lot, here is the changes:

- Merged the update function with the histogram for better
performance
- Graticules with IRE scale for waveform and vectorscope
- Support for 32bit float/channel images, without clamping, so
we an see out of range value
- Waveform can be scaled in/out
- Waveform and vectorscope can be resized
- Histogram Waveform and Vectorscope support color management
(only sRGB for now)
- Waveform permit to view YCbCr value according JPEG, REC601
or REC709 conversion
- Waveform show min max values on the side
- Histogram support Luma and individual R G or B mode

Other stuff:
- Correct a small bug in rgb->ycc conversion (a +16 was left
in the jpeg conversion)
- Add the luma sampling to the line sample tool.

Xavier