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CPP100
SECTION 9
CPP1OPS
25/10/06
www.snellwilcox.com
Version 1 Issue 6
9.16
Contrast
There are three settings for
Scratch Contrast
available, and they are denoted as
Low
,
Med
and
High
.
Depending on the footage in question, the scratches may be low, medium or high contrast. Selecting the most
appropriate
Scratch Contrast
option results in the maximum number of detected scratches, the minimum
number of undetected scratches and the minimum number of false alarms, while keeping picture quality to its
maximum.
Type
With most pieces of footage, the scratches appear to be white or black. With footage that has been processed
both as positives and negatives, there may be both white and black scratches present.
Where there is only one type of scratch (i.e. white or black), the
Type
option should be set to W
hite
or
Black
,
as appropriate. This will aid in reducing the number of false alarms, and thus result in improved picture quality.
Where there are white and black scratches, the
Type
option should be set to
Both
.
Length
As well as being of different strength, type and contrast, scratches will also be of different lengths.
Where one is only concerned with repairing long scratches (whose length is the majority of the height of the
screen), the
Length
option should be set to
Long
. This will result in the minimum number of false alarms, while
keeping picture quality to its maximum.
When concerned with short scratches, or scratches of any length, the
Length
option should be set to
Any.
Width
As well as being of different strength, type, length and contrast, scratches will also be of different widths.
Selections available are Narrow or Wide.