User manual

Nero Digital expert settings
Seite 55
11.2.12 Visual Enhancements
The settings in the Psycho visual quality level entry use human perception patterns to
achieve better overall quality.
This means, for example, that the quality is better in the middle of the picture than at the
outer edges because the eyes tend to focus on the middle and do not notice slight blurring at
the edge. Because quality is "saved" at the edge, you can either improve overall quality of
achieve greater compression.
This means that you can achieve greater compression without any appreciable loss of
quality.
These setting options are only available if you have selected Nero Digital AVC in the Nero
Digital category.
11.2.12.1
Picture Level
The Picture Level setting takes account of human perception so as to achieve better
compression for individual video frames in particular areas of the picture.
11.2.12.2
Macroblock Level
The Macroblock Level setting takes account of human perception so as to achieve better
compression for individual video frames in particular areas of the picture.
11.2.12.3
Advanced
The Advanced setting provides more ways to achieve higher compression, however these
may be evaluated by different viewers in different ways.
11.2.12.4
Enhanced Chroma Prediction
Traditionally, only brightness information was used for video compression, enabling
compression decisions to be made in the encoder.
The Enhanced Chroma Prediction setting includes extensive color information in these
decisions, making for better compression.