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WIRELESS NETWORK IP CAMERA User’s Guide
33
Image Configuration
Example of Wireless Network IP Camera definable image attributes using the Focus Assistant:
1. Compression rate
The file size of a 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