2017

Table Of Contents
To:Select:
Replace colour values of the red channel with its inverse. For example, 1 corresponds
to the maximum value of the given colour channel. In 8 bits, this value is 255.
NOTE The green and blue channels are rewired in the same way as the red channel (described in the previous
table).
Creating a Negative or Monochrome Image
You can convert a colour image into a monochrome or negative image using the Rewire option box.
TIP You can also convert the image manually by clicking the appropriate Rewire selection box (R, G or B) and
selecting the Y option for monochrome or 1- R for a negative image.
To convert a colour image into a monochrome or negative image:
1 Select Mono or Negative from the Rewire option box.
The image is automatically converted to a monochrome or negative image.
2 To cancel the changes, click Reset Basics.
Suppressing Colours
You can suppress the RGB or CMYw colours in an image. Chroma suppression is useful for removing blue
spill from a blue-screen composite.
To suppress a colour:
1 Click Master.
794 | Chapter 19 Colour Correcting