Absolute quality graph tab¶
This tab allows you to monitor one or more channels. Use the channel dashboard to select the channel or channels you want to monitor.
Click the <Add metric to graph> icon associated with each channel to add one or multiple graphs. Select a unique color for each graph to make it easy to identity.

Figure: Absolute quality graph¶
Graphing options¶
There are five metrics. Each one may be color coded and selected to display average, maximum, minimum or range.
Video Quality: aggregation of all four metrics
MOS: mean opinion score; perceived video quality
Blur: image sharpness
Blockiness: discrete cosine transform (DCT) digital encoding artifact
Contrast: difference in color and light over the image