1. Determine the binary level which divides an image into either white or black
Every picture element can be found in the 256 gradation sequence. By setting the threshold at some part of the gradation sequence, a picture element is categorized into either white or black according to the brightness. This is called binarization and the threshold is called the binary level.
2. Determine the inspection area with the test window
The area mode allows the user to set a window on the screen in order to detect the existence or size of the pertinent pixels within the window and the dimensions of the inspection area. Determining the "pertinent pixels in the window" is called binarization.
3. Inspection examples
Detection of missing items during packing process
Because the device captures the entire image of the container and allows the user to set multiple test windows on the image, any missing item at any position can be detected.