Another very usefull tool for underwater film-makers like me, is a color correction tool.

Under water the long lenght radiations are stopped so, when you go deep, red first and then green will be absorbed by water.

basically we need a video traslation of the gimp's: Levels, Colors, curves and Photo Filter

Cheers

Hello,

I'm starting a serious project using Kdenlive.

Something that seems to be missing is basic color correction.

It is possible to control brightness and gamma, but what about contrast ?

Then it would be great if functions as levels or saturation could be coded.

hi

in latest version of mlt there are some filters that have this functions in:

"technicolor" lets you adjust the saturation of the colors (also a bit color correction ??)

"grain" lets you adjust contrast and brightness (you can set noise to 0 for no noise)

if you miss some needed filters, write me and i will see waht we can make

Great!

Yes the "technicolor" and "grain" filters will be very useful.

Something more powerful would be to have a "color curves" filter. This allows a good manipulation of all channels.

See the tool in GIMP : http://docs.gimp.org/en/gimp-tool-curves.html

Of course, this needs a more sophisticated UI than rulers, but it is a very useful for every one who wants to make color correction.

great to hear that this could help you a bit.

later i (or maybe somebody else) will create a colorcorrection/constrast/brightness with curve based settings.

but this is a bit more complicated (setup up the gui and transfer the parameters to mlt).

if main work is done for kdelive, i'll try to take a look at it.

Just out of curiosity... and because I'd love to see this feature in Kdenlive, I'll rise this thread from the doomed.

I just took a peek at other video editors on linux, now I saw "Open Movie Editor". It's quite a fine program, but I am much more of a Kdenlive-user. However, there's one effect I'm missing in kdenlive - the colour curves. Are they already implemented by now, or is it still being worked on? :)

I'd only love to know it, please don't take it as a pushing request or something like that.

With frei0r included, today there are filters for hue, saturation, brightness, contrast, gamma, and white balance. We realize they do not provide histograms, curves, and channel-specific adjustments, masks, full keyframing, high color depth, and so on. These things will come in time.

Good to hear that, thanks :)

I already made use of the other frei0r-filters.