CP643 系统参考.pdf - 第273页

4. Supplement 4.1 Bright Setting The bright setting allows the image acquisition conditions to be adjusted for the mark camera and the parts cameras (wide view and narrow view). The following 2 values make up the bright …

Notes:

Part 3 Chapter 3 Command Descriptions

Edition 1.0 3-3-112 CP643E System Reference

4. Supplement

4.1 Bright Setting

The bright setting allows the image acquisition conditions to be adjusted for the mark

camera and the parts cameras (wide view and narrow view). The following 2 values

make up the bright setting.

4.1.1 Gain

This is the value for adjusting the contrast (difference in brightness).

Once the image has been acquired for vision processing, the gain determines the

magnification of the video signal from the camera. Increasing this value increases the

brightness of the image. However, caution should be taken since setting the

magnification too high will lead to the amplification of noise as well.

The range of the gain level is 0 ~ 255.

4.1.2 Offset

This is the value for adjusting the brightness of the entire image.

The offset level is determined when the video signal is at 0. Increasing this value will

make the image darker. Since noise will also be amplified when the gain is raised, it is

also necessary to adjust this offset value to match the gain.

The range of the offset level is 0 ~ 255.

Caution: It should be pointed out that there is almost no reason for which it should be necessary to

change the bright setting in order to be able to vision process a fiducial mark or a part.

However, if for some unforeseen reason the camera reproduction is bad or the brightness

of the mark on the board is bad, this bright setting may be useful.

Part 3 Chapter 4 Supplement

Edition 1.0 3-4-1 CP643E System Reference

Notes :

Part 3 Chapter 4 Supplement

Edition 1.0 3-4-2 CP643E System Reference