I've had this idea for a hypothetical color tool in my head for a while, but am just now getting around to posting about it with some newfound free time. Curious on the technical possibilities of a tool such as this, as well as it's limitations, and how others think they might use it, if at all.
This hypothetical tool is essentially a set of channel curves per output channel for input values per channel across the luminance range.
In the same way that the RGB mixer has the RGB output's per channel, you have a set of RGB curves for the Red channel, Blue channel, and Green channel. The curves still have a slope of 1, and movement up and down represents deviance from the usual channel mix, and the length of the curve corresponds to the luminance range.
So for example, an S curve on the blue channel of the Red channel out put would subtract the blue channel from the the red channels output in the shadows and then add the blue channel to the red channels output in the high lights.
I could quickly pull down the red curve in the blue channel (so subtracting red channel from the blue channel output) in the high end of the curve to quickly consolidate my hues and make push things to a warm gold without having to worry about getting any red / purple bleed.
As I have been using the RGB mixer more for creating creative looks, and using it to get to the colors and tones I want faster than other tools previously, I could see this being a really interesting way to create new looks and manipulate the images in ways we hadn't quite considered by creating channel cross talk and swapping mapped smoothly across the luminance values.
Thoughts? Would this mathematically and technically be possible? How do you think this could be a useful tool?
This hypothetical tool is essentially a set of channel curves per output channel for input values per channel across the luminance range.
In the same way that the RGB mixer has the RGB output's per channel, you have a set of RGB curves for the Red channel, Blue channel, and Green channel. The curves still have a slope of 1, and movement up and down represents deviance from the usual channel mix, and the length of the curve corresponds to the luminance range.
So for example, an S curve on the blue channel of the Red channel out put would subtract the blue channel from the the red channels output in the shadows and then add the blue channel to the red channels output in the high lights.
I could quickly pull down the red curve in the blue channel (so subtracting red channel from the blue channel output) in the high end of the curve to quickly consolidate my hues and make push things to a warm gold without having to worry about getting any red / purple bleed.
As I have been using the RGB mixer more for creating creative looks, and using it to get to the colors and tones I want faster than other tools previously, I could see this being a really interesting way to create new looks and manipulate the images in ways we hadn't quite considered by creating channel cross talk and swapping mapped smoothly across the luminance values.
Thoughts? Would this mathematically and technically be possible? How do you think this could be a useful tool?
