User`s manual

Basic Operation & Standard Features

3-26

BASLER A102f

DRAFT

3.8.2 Color Filter ID

The Color_Filter_ID field of the Format 7 register (see page 4-10) has been implemented on A102f

cameras. This field can be used to determine the order of the pixel colors being output from a color

camera. To use this feature, make all desired changes to the camera’s parameter settings and

then read the Color_Filter_ID field. The field will return the appropriate filter ID for the current

settings.

The Bayer filter in the

A102fc is an RGB primary color filter and the color filter ID field will return an

ID of 0, 1, 2, or 3 as appropriate. Each ID identifies the color of the first two pixels in the first row

transmitted by the camera and the color of the first two pixels in the second row transmitted. Due

to the repetitive nature of the color filter, this information is all that you need to determine the order

of the pixel colors in your current AOI. Table 3-2 shows the meaning of each of the color IDs.

3.8.3 Integrated IR Cut Filter on C-Mount Equipped Cameras

A102fc color cameras are equipped with an IR cut filter as standard equipment. The filter is

mounted in the lens adapter. Cameras without an IR cut filter are available on request.

ID 0 ID 1 ID 2 ID 3

First pixel in the first row R G G B

Second pixel in the first row G B R G

First pixel in the second row G R B G

Second pixel in the second row B G G R

Table 3-2: Color Filter IDs

The Color_Filter_ID field of the Format 7 register is defined in version 1.31 of the

IIDC specification.

Because the Color_Filter_ID feature is so new, the Basler BCAM 1394 Driver does

not yet include a method call to access this feature. As a work-around, you can use

the techniques described in the tutorial for the Basler Smart Features Framework

Software to directly read from or write to the Color_Filter_ID field. The Smart Features

Framework Software is available on the Basler web site. To download the software

go to:

http://www.baslerweb.com/popups/popup_en_1825.php

Caution!

The location of the filter limits the thread length of the lens that can be used on

the camera. The thread length on your lens must be less than 7.5 mm. If a lens

with a longer thread length is used, the camera will be damaged and will no

longer operate. See Section 6.3 for more details.