Basler A620f Bedienungsanleitung PDF herunterladen (Seite 40)

Basic Operation & Standard Features

3-20 BASLER A620

DRAFT

Gain Settings with Camera Set for 16 Bit Output

When the camera is set to output 16 bits per pixel, the settings in the Gain control register can

range from 0 (0x000) to 125 (0x07D). The default gain setting when the camera is set for 16 bit

output is 0 (0x000). To determine the dB of gain that you will see at a particular decimal setting,

use the following formula:

Typical settings and the resulting amplification are shown in Table 3-2.

Table 3-2: Gain Settings with 16 Bit Output

3.6.2 Setting the Brightness

The camera’s brightness is changed by setting the Value field of the Brightness control register

(see page 4-23). The setting can range on a decimal scale from 0 to 255 (0x000 to 0x0FF). The

default is typically 8 (0x008). The actual default may vary slightly from camera to camera. Settings

below the default decrease the brightness and settings above the default increase the brightness.

The effect of a change in the brightness setting varies depending on whether the camera is set to

output 8 bits per pixel or 16 bits per pixel. When the camera is set for 8 bit output, increasing the

brightness setting by 4 results in an increase of 1 in the gray values output by the camera. When

the camera is set for 16 bit output, increasing the brightness setting by 1 results in a increase of

1 in the gray values output by the camera.

Decimal Hex dB Multiplication

Factor

Decimal Hex dB Multiplication

Factor

0x000 0.0 x 1.0 75 0x048 5.7 x 1.9

25 0x019 2.4 x 1.3 100 0x064 7.0 x 2.3

50 0x032 4.2 x 1.6 125 0x07D 8.2 x 2.6

When an A620f is set for 16 bit output, only 10 of the bits carry actual pixel informa-

tion. See Section 3.8 for more information.

Gain 20 log

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Basler A620f Bedienungsanleitung Seite 40