Posted: Wed Jun 05, 2013 2:50 pm Post subject: Chroma Key (green screen). New wrinkle old subject
I did a search, but didn't find anything that could answer this quesiton. If there is, then please point me to an existing thread.
I stumbled across a facinating use of Chroma Key, but I have no idea how this photographer managed to do this. I've always used CK as a way to change my background. He's using it as a way to remove a foreground item. The result is incredible, and something I would love to adapt for my own uses. Any ideas how he managed this?
One other thing to note. I intially found this via a link from DIY Photogrpahy where they spoke about this effect via CK. They didn't go into details on how you would accomplish this though.
It's hard to get much off the pages since I don't speak that language.
But technically, chroma keying is just compositing, replacing specific color values.
Look at this-http://www.diyphotography.net/using-chroma-key-water-special-effects-nsfw
You can get a general idea by the photo where it shows the liquid hitting the model.
He likely dilutes the paint used for chroma keying and uses high speed photography to capture the moments that it hits and covers the subjects. Then he isolates the color range and composites those areas onto new backgrounds. Then uses standard techniques to vary the color of the liquid. He may even use both the blue and the green chroma paint in separate tanks and varies the amount of time he sprays the subject with each color. Then combines multiple shots into each finished image to get the multi-color look.
Or sprays the 2 colors from 2 different directions off camera. That's kind of what it looks like. The reddish tones are from the 2 colors mixing, and probably some color work in post.
Once the shots are captured and composited, color replacement with photo filters and standard color grading and correcting techniques is probably the easy part.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You cannot attach files in this forum You can download files in this forum
