Abstract
When compositing CG and photographic images, tone mapping of the CG images is essential in order to join the two seamlessly. In regular CG production settings, tone mapping depends on the sensibility of the operator, which gives rise to variations in the level of live-action compositing. Herein is proposed a technique to simulate sensitometric characteristics of photographic images by tone mapping of CG images using camera response functions. Seamless image synthesis is possible with this technique because the gradations of the CG and photographic images generally agree.