The reference image is the base image on which the alignment markers, digit ROIs and anlog ROIs will be defined.

Initially the currently saved reference image is shown. If you start with a setup from scratch, a default image is shown as a placeholder. Use the button "Create New Reference / Change Camera Settings" to start the creation of your own reference image. After clicking the button, the camera will take a photo using the configured parameters. This will be your new reference image. With the button "Update Reference Image" you can update the image again.

To have a reliable evaluation processing, it is mandatory to have the digit ROIs horizontally aligned. Using the two input fields "Rotation angle" and "(Fine-tune)" the image can be rotated in both directions. The resulting rotation angle is used to pre-rotate the image before the alignment algorithm is processed to compensate only small misalignments (See next step Alignment Markers). Further information can be found in documenation: Reference Image

After setting up your reference image don't forget to save with the "Save new Reference Image and Camera Settings" button!

NOTE: There is no need to perform a reboot after every saving or step. It's sufficient to reboot after all configuration steps (reference image, alignment, ROI configuration) are completed to activate new configuration.