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To set up the detection of configure the LPR channel detector, do the following:

  1. Go to the settings panel of the LPR channel object corresponding to the activated software module (see Activating the software module used for identifying

    2. the

  2. license plates).
    Image Modified

    Info
    titleNote

    The availability of the parameters depends on the activated software modules (for details, see The settings panel of the LPR channel object).

    3. Enter
  3. Specify the
    4. value in the
  4. Area search threshold
    5. field (1)
  5. parameter.
    6. Set

  6. Specify the Max. width and Max. height parameters:

    1. Click

    7. the Image Removed (2)

    1. the Image Added button next to the parameters.

    8. Interactive

    1. An interactive interface

    9. of

    1. for setting up

    10. the zone parameters showing the

    1. parameters of an area opens. It represents an image from the corresponding camera

    11. will be displayed

    1. .

    12. Image Removed

    1. Image Added

    2. At the

    13. appropriate

    1. required moment, click the Stop video button

    14. and

    1. , then

    15. hold the mouse while dragging it across the

    1. select the required area using the left mouse button and click the OK button.

    16. Image Removed

    1. Image Added

      Info
      titleNote

      You can select the

    17. zone

    1. required area in the same way in the

    18. Real Time Video mode as well

    1. Live video mode. 

      Results of setting

    19. the

    1. area parameters

    20. will be

    1. are automatically entered in the Max. width and Max. height fields.

      Info
      titleNote
    21. It is not recommended to set

    1. We don't recommend setting maximum sizes greater than required, as this slows down the processing

    22. ,

    1. but

    23. does not

    1. doesn't improve the recognition quality

    24. of recognition

    1. .

    25. Set
  25. Specify the Min. width and Min. height parameters similarly to the Max. width and Max. height parameters using
    26. the Image Removed button (3)
  26. the Image Added button.

  27. If necessary, set the Cut image with vehicle checkbox

    28. (4)

  28. .

    Info
    titleNote

    The Cut image with vehicle

    29.  option

  29. option is used only when

    30. working

  30. you work with megapixel

    31. video

  31. surveillance cameras.

  32. If necessary, set the Allow recognition by request
    33.  checkbox (5).Click the Apply button (6)
  33. checkbox.
    Info
    titleNote

    Image recognition by request works only for the RR (seeSearching for a license plate by image)and VT (see Search for a license plate by image for the VT recognition module) modules. For this, use the POST http://IP address:port/lprserver/FindNumbersByImage query.
    The response can contain the following errors:

    1. Image Added
      In this case, the Allow recognition by request checkbox isn't set.

    2. Image Added
      In this case, an image of the incorrect base64 format is used: you must convert the video frame to the JPEG format and not save it in the JPG format.

    3. Image Added
      In this case, you used the Uragan module during the operation; image recognition by request isn't supported.
  34. Click the Apply button.

Configuring the LPR channel detector is complete.