1. Change the ROI The Region of Interest (ROI) is the area of the image where the vision tool operates. by moving, resizing, and turning the blue rectangle on the image. Place the blue rectangle on the part of the image you want to check.

   - To move the ROI, click and drag anywhere inside the blue rectangle.

   - To resize the ROI, click and drag any of the sides or corners of the blue rectangle.

   - To rotate the ROI, click and drag the rotate handle on one side of the blue rectangle.

   - Alternatively, you can adjust the position along the X and Y axes, the width, the height, and the rotation of the ROI with numerical values in the ROI Options section.

2. To change the point from where the application calculates the location of the ROI, select Origin or Center.

3. If the tool is in a tool chain after another tool that produces blobs, you can apply a Mask From Blob to narrow down the inspection area. For more information, see Masking.

4. Click Apply ROI when you are done to set the ROI for all the images you uploaded.