2017

Table Of Contents
The average colour sampled by the colour picker appears in the Average Colour pot. In each channel
of the colour model, the channel value of the average colour appears as a white line. All pixels in the
key-in clip with the selected colour value are keyed out.
The yellow lines in the colour model channels indicate the limits of the softness range. The pixels in
the front clip with colour values at the centre of the range are black (transparent) in the matte. As you
move away from the centre, the pixels become more opaque.
6 Set the view to Matte view.
7 Repeat this procedure to plot the average colour using the other colour models, and then view each
resulting matte to determine which model gives the best result. After you decide on a colour model,
use the tools described in the next sections to refine your matte.
After you have selected a colour model and set the average colour, set the softness range (page 699).
Setting the Softness Range
After you
choose a colour model based component keyer and set the average colour (page 698), adjust the
softness range. The softness at the edges of the matte increases as you increase the softness range. To set the
softness, you can use the colour picker, the numeric fields, or the Master Softness field.
To set the softness using the colour picker:
1 Zoom in to see the edges of the matte more clearly.
2 Click Softness in the selected colour model menu.
The cursor changes to a colour picker.
3 Position the colour picker at the edge of the matte. To increase the softness, click and slowly drag the
colour picker toward the centre of the matte. The values within the area you selected are used to adjust
the maximum and minimum values for the softness range. The positions of the yellow lines change
as you drag the cursor on the image.
(a) Master Softness field (b) Minimum Softness field (c) Maximum Softness field
4 To increase or decrease the softness range, click the + or - button beside the Softness button and then
click an area of the image.
To set the softness range using the numeric fields:
1 Set the minimum value for the softness range using the Minimum Softness field on the left side of the
colour bar.
2 Set the maximum value for the softness range using the Maximum Softness field on the right side of
the colour bar.
NOTE You can also set the softness range by entering a numeric value in the Master Softness field.
Creating a Key by Extracting a Range of Colours with the HLS, YUV, RGB and RGBCMYL Keyers | 699