Why didn't they just purchase a yellow chair? What an asinine way to go about this if they knew they wanted a different color. But I digress.....
If it's a locked down shot, your best hope is to put a very close cut custom shape around it and then use your curves. Since it's in the Red color space, you're going to be grabbing skin tone if anyone's arm is on it and if their arm moves, well you're going to have a lot of keyframes or you'll have to take it into a compositing software to rotoscope.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.
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