• Image Processing
• Basics of Image Processing
• Principle of Image Processing
• Inspection Functions
• Feature Description

• Explanation of Functions
• Peripheral Equipment
• Area Judgment by Binarization
• Position Detection
• Dimension Measurement

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Machine Vision Technology

Feature Description

Partial capture

As the image below indicates, a target was traditionally captured in full screen with a CCD, and a captured image was transferred to the controller. The CV-3000 Series and the CV-2000 Series reduce the transfer time by capturing only the parts of targets that are necessary for inspection. In the photo below, the process time is reduced by approximately 13 ms by capturing only 90 lines.

Full screen capture Capturing time: 16.7 ms	Partial capture (90 lines) Capturing time: 4 ms

Camera Shift/Span Function

An image can be converted into a sharply contrasting image by internally brightening or darkening the image. Adjusting the span or shift function of a camera ensures stable inspection by obtaining the image most appropriate to an inspection.
• Camera sensitivity: Enables screen brightness adjustment that was formerly adjusted by using illumination and a lens. (9 stages)
• Shift: Illuminates or darkens the entire CCD image signal. Different from camera sensitivity, this function also enables you to equally blacken or whiten a constant gray level.
• Span: Makes the CCD tone level become larger or even. Emphasizing lighting differences by using this function provides a clearer image.

Initial value Camera sensitivity: 3.0 Shift: 000 Span: 1.000	Value after optimization Camera sensitivity: 5.0 Shift: - 40 Span: 2.000