Sepia

[Wilbert]

I'd like to convert pics to sepia as is done here:

http://www.gimp.org/tutorials/Sepia_Toning/

Anyone knows how to script/code it?

[CraigBjorn]

My script writing skills aren't superb, but here's what works for me

clip1 = AVISource("C:\clip.AVI").greyscale
color = BlankClip(clip1, color=$a28a65, pixel_type="RGB32")
sepia = Overlay(clip1, color, mask=clip1.Greyscale.invert, mode="chroma")
return sepia

That's basically an exact replica of what they did for the gimp, except for the level adjustment. Hope that helps.

[Guest]

My Colorize filter for VirtualDub can do it too. It has active preview to simplify tweaking.

http://neuron2.net/colorize.html

[manono]

Hi Wilbert-

I wrote down a couple of ways a while back that I got off of here. Maybe a search will turn up the thread:

ColorYUV(off_u=-32, off_v=32)

Coloryuv(off_u=-22, off_v=25)

I don't know which is closer to the color you want. Here's the thread:

http://forum.doom9.org/showthread.php?s=&threadid=57643&highlight=sepia

[CraigBjorn]

I think all of these different scrpts will produce very different types of sepia. That Gimp tutorial lightly touched on that matter at the bigginig.. you can see the difference between at least two of the ways by removing the invert command from that script I posted up earlier.