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The most obvious example of how effects like these can be used is Robert Rodriguez's Sin City. However, they can also be used in much more subtle and sophisticated ways. For example, by layering your video tracks and putting different instances of the leave color effect (alongside another color effect such as the Three Way Color Corrector or RGB Curves) on each track, you can push various chrominance values in the image to their extremes while leaving others under-saturated. By using the Change to Color effect alongside a method such as this one, you can completely warp your color palette into something entirely different from what you shot (although your DP may never speak with you again).
Of course, if you work with moving or handheld footage frequently, After Effects or DaVinci Resolve will be better solutions for creating these types of effects due to their advanced tracking functionality. However, being able to stay in your NLE and create these effects quickly can be an invaluable tool for the one-man-band types of filmmakers who are on tight deadlines, as well as for bigger productions where the producer or director want to see some temp effects before the picture lock is sent off to the VFX and color departments.
Quite frankly, there are some astounding (and downright bizarre) things that you can do with color inside of Premiere Pro. By better knowing all of the color effects inside of Premiere and how they interact with one another, you can better prepare yourself for anything and everything that a director or client could ever ask of you. If you want more of these fantastic Creative Cow tutorials, hop on over to their Premiere Pro Techniques series and get to it.
What do you guys think? Have you ever used these effects, and to what degree? Do you have any suggestions for how to creatively apply them? Let us know in the comments.
Link: Premiere Pro Techniques (CS6 and Above) with Andrew Devis — Creative COW