Nuke replace colors

#1

i am trying to do some work like in photoshop with Replace Colors. selecting a color and then changing the range of the colors and change hue,saturation and brightness.

which node would be the best for this?
HueShift
HueCorrect
HSVTool

#2

The HSVTool is pretty similar to what you’ve had in Photoshop, HueCorrect is another, more graphic way to adjust colors depending on the hue.
You can also combine the Keyer with the ColorCorrector for this purpose.

#3

with the hsvtool i get noise. is it because the range is not wide enough?

#4

If you separate a color based on hue, you will often get such artifacts on low-saturated areas.
This happens, because in the HSV color model, the colors which may look very similar and have subtle difference of RGB values, may have completely opposite hue.
Increasing the bit depth may help though.
You can also increase the Range Rolloff