Intellinet-network-solutions UNC-W10 Manuel d'utilisateur télécharger pdf (Page 34)

WIRELESS NETWORK IP CAMERA User’s Guide

Image Configuration

Example of Wireless Network IP Camera definable image attributes using the Focus Assistant:

1. Compression rate

The file size of JPEG-compressed image depends upon the actual content of the image. Images

containing much detail will generate larger files. Image quality is controlled through the level of

compression; where, high compression yields small files, while low compression maintains higher

image quality at the expense of larger files. The table below contains compression ratios for each

step, derived from real-life tests:

Compression Rate Level 1 Level 2 Level 3 Level 4 Level 5

QVGA 15 18 21 24 27

VGA 15 20 25 30 35

Level 6 Level 7 Level 8 Level 9 Level 10

30 33 36 39 42

40 45 50 55 60

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 82 83

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Intellinet-network-solutions UNC-W10 Manuel d'utilisateur Page 34