Parameter Adjustment for 2D Image

2D Scanning parameters are for the 2D image.

Usually, the parameters available under the Beginner mode will suffice.

If after tuning the parameters, the effect is still not satisfactory, please switch to the Expert mode.

Exposure Mode

Exposure mode

Applicable scenarios

Timed

Stable light conditions.

Auto

Changing light conditions.

HDR

Objects with varying surfaces, i.e., dark or bright colors, uneven light distribution, etc. that require superimposing images of different exposures to expand the dynamic range and enhance details.

Flash

Objects that need additional light.

Timed

  • Exposure Time

    This parameter affects the image brightness. The longer the exposure time, the brighter the image is.

    2D images given different lengths of exposure time:

    5 ms

    20 ms

    40 ms

    ../../../../../_images/exposure_time_2d_5ms.png
    ../../../../../_images/exposure_time_2d_20ms.png
    ../../../../../_images/exposure_time_2d_40ms.png

Auto

  • Auto Function ROI:

    This parameter is an entry for setting the ROI where the image processing algorithm of the expected gray value applies.

    Please click on Edit to open the ROI setting window.

  • Expected Gray Value:

    For monochrome cameras, the expected gray value affects brightness. For color cameras, the expected gray value affects the brightness of each color channel.

    The higher the expected gray value, the brighter the image looks.

    Default: 100
    Range: 0 t0 255

    2D images under different expected gray values:

    100

    180

    ../../../../../_images/gray_value_100.png
    ../../../../../_images/gray_value_180.png

    220

    240

    ../../../../../_images/gray_value_220.png
    ../../../../../_images/gray_value_240.png

HDR

  • Tone Mapping

    Tone mapping is for better displaying the 2D image’s details by enhancing the colors. Please set this parameter to True to enable this function.

    Default: False

    2D image without tone mapping (left) and 2D image with tone mapping (right):

    False

    True

    ../../../../../_images/hrd_false.png
    ../../../../../_images/hdr_true_30ms.png
  • HDR Exposure Sequence

    This parameter is an entry for setting the HDR exposure time sequence. Please click on Edit to open the setting window.

    In the window, you can add the HDR exposure time sequence and set the duration for each exposure.

    Please click on Apply to finish the setting.

    2D images of different exposure durations given one exposure:

    10 ms

    30 ms

    50 ms

    ../../../../../_images/hdr_true_10ms.png
    ../../../../../_images/hdr_true_30ms.png
    ../../../../../_images/hdr_true_50ms.png

    2D images of different exposure durations given one exposure and multiple exposures:

    10 ms

    30 ms + 10 ms

    30 ms

    ../../../../../_images/hdr_true_10ms.png
    ../../../../../_images/hdr_true_30_10ms.png
    ../../../../../_images/hdr_true_30ms.png
  • Auto Function ROI:

    This parameter is an entry for setting the ROI where the HRD algorithm applies.

    Please click on Edit to open the ROI setting window.

Flash

You can use this option to add additional light on the objects before capturing the image.

The contrast between using flash and not using flash:

Flash

No Flash

../../../../../_images/flash.png
../../../../../_images/exposure_time_2d_20ms.png

Sharpen Factor

Sharpening is for obtaining clearer object edge details, but it may cause more image noise.

This parameter sets the degree of sharpening on the image.

The higher the value, the intenser the sharpening, the heavier the noise.

ROI

This parameter is an entry for setting the 2D ROI of the image and thus ignoring the unwanted parts.

Click on Edit to open the ROI setting window.

Click on Apply to finish the setting.

../../../../../_images/quick_setroi.png

White Balance

The object color in the image may not be the same as that of the real object because of the ambient light.

Please adjust the white balance to make the 2D image reflect the real object colors.

See View 2D Camera and Set Parameters for details.

Hint

This parameter is only applicable on color cameras.