Luma Surveillance LUM-500-DVR-16CH, Technical Reference Manual

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Web Interface
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Snapshot
This menu option is only available on the NVR model.
These are the settings the system uses when taking a snapshot due
to schedule or alarm trigger.
When taking snapshots manually via the web interface, the
resolution of the photo depends on the grid view mode when the
snapshot is taken. When viewing in single-channel mode, the
snapshot uses the main stream resolution. Otherwise, the snapshot
uses the lower sub stream resolution.
All snapshots taken from the local interface use main stream
resolution.
Channel No. determines which camera’s snapshot settings you are
editing.
Save your settings before leaving this page or switching to a different
channel.
Timing
This section sets how the camera acts when taking snapshots from a
schedule setting.
Format: This selects the graphic file format. JPEG is the only option,
but future upgrades may change this.
Resolution: This lets you set the level of detail you want in your
snaps.
Quality: This determines how much compression is used on the
image. Low quality uses high compression, which degrades the
image but takes up less space. High quality images take up a lot of
space, but have little data loss from compression.
Interval: When taking scheduled snapshots (that is, not an event),
this shows how often the camera takes a photo. Note that each photo
is its own file; if you are taking snapshots at frequent intervals, you
may be better off making a recording with a very slow frame rate.
Event-Triggered
This sets how the camera acts when it takes a snapshot from one an
alarm trigger (due to a door opening, etc.).
The items here are identical to the ones in the section above.