2 using filters, When to apply filters, Source filters – Grass Valley ProCoder 3 User Manual

Page 109: Target filters, Why filters are necessary, Cropping unwanted data, Improve or correct sources, Enhance encoding of specific targets, Expand/shrink 601 color range, Using filters

CHAPTER

o n

t e

n t

I n

t r

u c

t i

o n

I n

s t

a l l

a t i

o n

ProCoder 3

i z

a r

Using ProCoder

Helpful Hints

ProCoder

Reference

Glossary

Index

Using Filters

Using Filters

When to apply filters

ProCoder lets you apply filters on both Sources and Targets. It is important to know where
to apply a filter in order to achieve the best result and keep ProCoder running at optimal
speed.

Source filters

If a filter is applied only for a particular Source, it should be applied to the Source.

Target filters

If a filter should always be applied regardless of the Source, it should be applied to
the Target.

Why filters are necessary

Cropping unwanted data

Broadcast formats often have a larger frame than is normally visible. If your output
target is for computer use, it may be helpful to apply the Crop filter to remove the
portions of the frame containing garbage or static (overscan) that are not normally
visible when viewing it on a television.

Improve or correct sources

Use Source filters to apply filters that enhance or improve the source quality, such as
Color Correction.

Enhance encoding of specific targets

Use Target filters to apply filters that are useful for certain encoding types, such as
Blur for streaming formats.

Expand/shrink 601 color range

Different video editing systems and encoders use different color ranges to represent
the minimum and maximum values. Use the 601 Correction filters to convert between
0-255 and 16-235 ranges when converting for systems that do not use the same ITU
BT.601 conversion methods.

