Sharpen Filter

[coolgit]

Is there a sharpen filter/plugin/script/whatever that can sharpen all colours except for the white colour?

The reason is when I use sharpen, the video looks good but white always looks oversharpen. Surely there must be something that can exclude the white colour thus preventing it from looking oversharpened.

[DTL]

You can try to sharp chroma planes only or create mask from chroma planes to select colored areas only.