Features
AW00136902000
110
Basler dart BCON
11.11 Auto Functions
Auto functions control image properties and are the automatic counterparts of certain features such
as the Gain feature or the Balance White feature, which require manually setting the related
parameter values.
Auto functions are particularly useful to keep good image quality under frequently changing
conditions, e.g. unreliable light conditions.
An auto function automatically adjusts a parameter value until the related image property reaches
a target value. Each auto function uses the pixel data of the full image as the base for adjusting.
The manual setting of the parameter value is not preserved. For example, when the gain auto
function adjusts the Gain parameter value, the manually set Gain parameter value is not preserved.
Generally, the different auto functions can operate at the same time. For more information, see the
following sections describing the individual auto functions.
11.11.1 Auto Function Operating Modes
The following auto function modes of operation are available:
All auto functions provide the
Once
mode of operation. When the Once mode of operation is
selected, the parameter values are automatically adjusted until the related image property
reaches the target value. After the automatic parameter value adjustment is complete, the auto
function will automatically be set to Off and the new parameter value will be applied to the
following images.
By default, all auto functions (exposure auto, balance white auto, and gain
auto) are enabled.
They are set to the continuous mode of operation (see
).
If you want to manually set the parameter values for gain, exposure time, or white
balance, you must first set the corresponding auto function parameter
(ExposureAuto, BalanceWhiteAuto, or GainAuto) to Off.
After camera power up or reset, all auto functions will be re-enabled unless you
define a startup set with auto functions turned off. For more information about the
startup set, see Section 11.15 on
.
A target value for an image property can only be reached if it is in accord with all
pertinent camera settings and with the general circumstances used for capturing
images. Otherwise, the target value will only be approached.
For example, with a short exposure time, insufficient illumination, and a low setting
for the upper limit of the Gain parameter value, the gain auto function may not be
able to achieve the current target value setting for the image.
