Manual

Table Of Contents
DobotVisionStudio User Guide
Issue V4.1.2 (2022-06-08) User Guide Copyright © Yuejiang Technology Co., Ltd.
196
Assess Mode: it has two modes, including auto correlation and gradient square. The auto
correlation mode is applied to auto focus scene, and the gradient square mode is applied to the scene
with rich image edge information.
Noise Level: the default value is 0. When the image gray level difference is large, you can
appropriately increase this parameter. It is valid in the auto correlation mode only.
Image Fixture
Image fixture is to perform image offset repair on the correction object by pre-setting the initial
information of the reference point and the movement of the reference point (position and angle)
detected during operation, so that the corrected image and the reference image have the same
position. In the process, it is sometimes impossible to guarantee that the conveyed objects will not
shift, as shown below.
When the position of the object is shifted in the field of view, the image needs to be corrected to
ensure the accuracy of the positioning. The correction information in the image correction can be
imported from the position correction. It is recommended to use a standard image to establish a
template to ensure the accuracy of the correction information.
Image Fixture Parameters
By Info
You can bind the correction information in the position correction directly.
By Point
You can bind the reference point, reference angle, operating point, and operating angle
transmitted from the previous module.
By Coordinate
The coordinates of the reference point and the operating point can be customized. This method
can be selected when the image needs to be rotated.
Shade Correction
Shadow correction performs mean filtering on the input image, and compares the mean filtered
image with the original image to obtain the image residuals, and resets the pixels according to a
certain rule. It is mainly used to perform illumination correction on the input image with uneven
illumination.
The image before shade correction is shown below: