User`s manual

Basic Operation & Standard Features

BASLER A620

f 3-25

DRAFT

3.8 Selectable 8 or 10 Bit Pixel Depth

A620f cameras can be set to output pixel data at either 8 bit depth or 10 bit depth. (With 10 bit

depth, the camera outputs 16 bits per pixel but only 10 bits are effective.)

For 8 Bit Depth

The method used to set the camera for 8 bit depth depends on whether you are operating the

camera in a standard video format and mode or if you are operating the camera in Format 7,

Mode 0.

If you want to operate the camera at 8 bit depth in a standard format and mode:

• Refer to Section 3.12.1 and select one of the available 8 bit video format / mode /frame rate

combinations from the list.

• Set the Current Video Format, Current Video Mode and Current Video Frame Rate registers

(see pages 4-19 and 4-20) to the appropriate values for the combination you selected.

If you want to operate the camera at 8 bit depth in Format 7, Mode 0:

• Set the Current Video Format and Current Video Mode registers (see pages 4-19 and 4-20)

for Format 7 and Mode 0.

• Set the Color Coding ID field of the Format 7, Mode 0 register to the ID for Mono 8 (see Sec-

tion 3.12.2 and page 4-29). With this ID set, the camera outputs 8 bits per pixel.

For 10 Bit Depth

The method used to set the camera for 10 bit depth depends on whether you are operating the

camera in a standard video format and mode or if you are operating the camera in Format 7,

Mode 0.

If you want to operate the camera at 10 bit depth in a standard format and mode:

• Refer to Section 3.12.1 and select one of the available 16 bit video format / mode / frame rate

combinations from the list. (When the camera is set for 16 bit output, it outputs 16 bits but

only 10 bits are effective.)

• Set the Current Video Format, Current Video Mode and Current Video Frame Rate registers

(see pages 4-19 and 4-20) to the appropriate values for the combination you selected.

If you want to operate the camera at 10 bit depth in Format 7, Mode 0:

• Set the Current Video Format and Current Video Mode registers (see pages 4-19 and 4-20)

for Format 7 and Mode 0.

• Set the Color Coding ID field of the Format 7, Mode 0 register to the ID for Mono 16 (see

Section 3.12.2 and page 4-29). With this ID set, the camera outputs 16 bits per pixel but only

10 bits are effective.

When an A620f is set to output 16 bits per pixel, only 10 of the bits for each pixel carry

actual pixel information. The 10 effective bits fill from the LSB and the unused bits are

filled with zeros. Pixel data is stored in the PC memory in little endian format, i.e., the

low byte for each pixel is stored at the lower address and the high byte is stored at the

neighboring higher address.