## Image Correction: PTZ and Display Modes

To better identify objects in an image section, you can zoom the live image and move the resulting image area around (PTZ). This depends on the image settings (Panorama or Full Image, for example) of the camera images. To quickly load these image sections, several image positions are already pre-configured, which can be loaded by using the slider.
The program also shows the slider on Dual cameras. Use this slider to show the live images of either the right, the left or both image sensors.
When showing the live images of hemispheric cameras, you can set different display modes .

Zooming and Moving Image Sections

You can zoom using the slider or the mouse wheel. Zooming with the slider takes place only on the computer. This means that only the image section of the current live image is modified.
To see other image sections, you can move the live image using the mouse.

If you want to execute the PTZ actions on the camera, you can also switch to camera PTZ. In this case, the PTZ actions are applied to the camera's live image and also influence the recordings (but only if the camera does not record the full image). To use this feature, click on the slider and keep it pressed until it starts flashing. You can now adjust the zoom level as needed. To store the setting, click again on the slider and keep it pressed until the slider stops flashing.

Selecting and Adjusting Image Sections

#### Selecting Image Sections

To quickly focus on a specific image section, you can use one of the factory default image positions that are predefined in the camera.

- Preview , detail , overview and point of interest
- Top , bottom , left , right

The camera will then move to the selected position. Note that the PTZ actions are executed on the camera and also influence the recordings (only if the camera does not record the full image). Move the slider to the next position or until you have found a suitable position.

#### Adjusting Image Sections

You can adjust the predefined image positions of the factory default. Select a position and modify it as needed. Keep the slider on this position until it flashes once. The new image section has been stored.

Choosing a Sensor

If you want to show the live images of only the right or the left image sensor, you can move the slider to the right to (left sensor) or further to the right to (right sensor).

Display Modes and Panorama Correction

When showing the live images of hemispheric cameras or cameras with the lenses L12/B016, L23/B036, L25/B041, you can select different display modes. Note that the OpenGL option in the settings (Mac menu MxManagementCenter > Preferences > General, Windows menu File > Settings > General) needs to be activated for this purpose. In order to get naturally-looking images, the camera will automatically correct the distortion in these modes. This distortion correction can be refined even further when using the panorama correction. The selection of a display mode is always done locally and thus does not influence the camera settings. However, the selection is also applied to the other program views. When selecting a display mode in the live view for a specific camera, this mode is also applied if the camera shows up in the focus window of the Grid view as well as in the live images of the Graphic view. Consequently, the alarm images in the Alarm bar and in the Research view are also shown in the selected display mode.

#### Select the Display Mode

- Full image: Shows the entire (distorted) full image.
- Normal: Shows a distortion-corrected image and allows executing PTZ actions. This is the factory default for hemispheric cameras.
- Panorama: Shows the entire distortion-corrected image (corrected 180° panorama) from the left to the right border. The aspect ratio (width to height) is 8 to 3.
- Surround: Shows four image sections (one for each cardinal direction: N, E, S, W) in one joint view. Note that you can use PTZ actions to modify all four views independently from one another.
- Double panorama: This mode shows a panorama view for the Northern half of the image and a second panorama view of the Southern half of the image using an aspect ratio (width to height) of 4 to 3. This mode makes sense for a hemispheric camera that is mounted to the ceiling.
- Panorama focus: This display mode combines the panorama view (aspect ration 8 to 3) with two smaller images (each with aspect ratio 4 to 3) in one large image.

To select a mode, move the slider to the right until you reach the desired position. This slider position will be stored automatically until you change it again.

#### Panorama Correction

The distortion-corrected images of the different display modes can be further refined. For example, if the image in Panorama mode is not centered, you may see a trapezoidal distortion. The panorama correction allows adjusting the skewed (vertical) lines of the image to produce a more naturally-looking image. To do so, move the slider to the right to and use the mouse to correct the image. To store the corrected setting, click on the slider and hold it until the slider icon briefly appears in the center of the image.