Black and white converter
The Black & White Converter effect has three parameters that may be locked using a FX Stack keyframe. By default, it transforms the images by deleting the color data. We therefore obtain the same effect as photos taken with a black and white film. Increasing the value of the Red parameter will make the red pixels of the original image lighter when changing over to gray. Reducing the value will make them darker (see below).
The same principle applies to the Green and Blue parameters.
Default settings Parameter Red at value 0 Parameter Red at value 255
Below, a zoom on the red area of the image :
Default settings Parameter Red (value 0) Original image Parameter Red (value 255)