IC Realtime DVR-FLEX8E Product Manual - Page 128

Reference bit rate I Frame Watermark enable Recommended bit rate value according to the resolution and frame rate you have set. Here you can set the P frame amount between two I frames. The value ranges from 1 to 150. Default value is 50. Recommended value is frame rate *2. This function allows you to verify the video is tampered or not. Here you can select watermark bit stream, watermark mode and watermark character. Default character is DigitalCCTV. The max length is 85-digit. The character can only include number, character and underline. 7.8.1.2.2 Snapshot The snapshot interface is shown as in Figure 7-20. Figure 7-20 Please refer to the following sheet for detailed information. Parameter Snapshot type Image size Quality Interval Copy Function There are two modes: Timing (schedule) and Event (activation). z Timing snapshot is valid during the specified period you set. z Activation snapshot only is valid when motion detect alarm, camera masking alarm or local activation alarm occurs. It is the same with the resolution of the main stream. It is to set the image quality. There are six levels. It is to set snapshot frequency. The value ranges from 1s to 7s. Click it; you can copy current channel setup to other channel(s). 7.8.1.2.3 Video Overlay The video overlay interface is shown as in Figure 7-21. 118