Channel invert problem

[Darby Edelen]

That thin black line could be caused by any number of things. Can you give us more information on how you’re inverting the cloth? Does it have an alpha? Are you masking it? Is there a bright highlight on the cloth that is becoming black when inverted?

Darby Edelen

[Chris Warren]

If the layer is a transparent layer try using the “Simple Choker” effect

ChrisW
http://www.azprovideo.com

[Tony Marion]

Darby – It’s an effects test on a still photo to see if I can pull it off before I try it for my client. I have a woman in black lingerie against a white background. I’ve tried everything from inverting the channel in a sep comp and using luma key to leave the white lingerie behind as it’s own layer, to tint then keylight, channel shift, different modes, different track mattes, and even roto brush. No matter I try, a thin black outline remains after the invert.

Chris – Thanks for the suggestion, but that didn’t work either.

I eventually want to be able to change white lingerie to black (I’m currently working backwards because black has been more cooperative in every test) while panning a model. It’s for a commercial that I’m shooting the 28th.

Thanks again for your help!

[Darby Edelen]

I’m at a loss. Without seeing the project I wouldn’t know what to suggest from here.

Darby Edelen

[Tony Marion]

Thanks again for the help. I must now humbly admit to being dumb 🙁

I was using a still snagged from the web to test this effect and what I didn’t notice about the original until an accidental zoom-in this morning is that in certain areas the original has a barely perceptible white outline in many places next to the model’s skin. So when I invert even a roto brushed layer, I get a black outline. When I tried the choke, the outline would go away only to reveal a thin line of black from the original image underneath.

Sorry guys, my bad, but thank you again for your help!