Image preview

The area on the left in the Configuration Assistant features a preview window and some operating elements.

	In this image preview, only 8-bit integer images are correctly displayed.

Lower bar

Below the preview window are the controls for starting / stopping the preview and information about the cursor position on the image:

Start/Stop Acquisition	Button for starting or stopping image acquisition.
Grab Single	Button for triggering a single image.
De-Bayering	Images in Bayer format can alternatively be previewed as RGB images. If this option is activated, the next image from the camera will be converted, not the present one.
Pixel Value	The color or intensity value of the pixel at the mouse cursor position on the image is indicated here.
Cursor Position	Shows the mouse cursor position on the image. Please note that the zero point for images is always at the top left.

	Image acquisition and trigger settings Make sure that the image acquisition and trigger settings of the camera are selected in such a way that the camera reacts to the commands. If, for example, the Trigger mode of the camera is active, the camera will not automatically send images at the start of the image acquisition. See the example Image acquisition and trigger for more details.

Upper bar

Above the preview image there are some controls for facilitating the camera configuration and adjustment of the image display.

Camera configuration

Image preview 4: Set ROI

After clicking this button, an ROI can be drawn directly in the preview image by holding the left mouse button down. This ROI is written to the camera parameters, so that the next image is sent with the set ROI.

Image preview 5: Reset ROI

After clicking this button a previously set ROI will be deleted, i.e. image size and offset will be set to the default values of the camera.

Image preview 6: Whitebalance

Clicking will perform a white balance on color cameras. The camera must support the following GenAPI parameters for this: BalanceRatioSelector and BalanceRatio (or BalanceRatioAbs for older cameras). In addition, the camera image must contain a white (not overexposed or reflective) object, such as a sheet of paper, for white balance.

Following a white balance, the necessary values are saved in the named GenAPI parameter and can be adopted into the Initialization Commands or UserSets. Automatically persistent storage on the camera may be specific to the camera concerned, but is not a standard feature.

This button is only active if there is a valid color format (3-channel images as RGB or 1-channel images in the Bayer format).

Image size

Adjustment options for the image display size. The image can be scaled between 20% and 6400% of the original size. Click Fit to window to automatically set the display size such that the preview makes the best use of the available space on the screen.

Interpolation

Here you can choose between different interpolation methods to scale the image from the original size to the display size:

High Quality	Interpolation with high quality.
Nearest	Interpolation through adoption of the value of the nearest pixel.

Right-click the image

Start Acquisition	Start image acquisition.
Stop Acquisition	Stop image acquisition.
Save Current Image	Save image as bitmap, JPEG or PNG.