27
Setting the Slopes for High Dynamic Range (HDR)
5.8.3.
Command
:i<s><x>
<s> = 'n' → <x> = 1 ... 3
(No. of slopes)
:i<s><xx>
<s> = 'd','t' → <xx> = 1 ... 63
hex
('d'ual or 't'riple slope
in percent)
:i<s>?
Response
--*
* ACK/NAK if acknowledge on
<x>
Number of slopes
<xx>' '<yy>-<zz>
<xx> current value
<yy> minimal value
<zz> maximal value
Description
This command sets the multiple slope function for dynamic
range adjustment. Through two selectable steps, the camera’s
dynamic range adjustment option allows to approach the CMOS
sensor’s linear range into a dynamic range corresponding to
the nonlinear human eye. Consequently, Baumer HXC cameras
provide definite image details even in case of extreme dark-
light contrasts, which means an invaluable benefit exceptionally
in image proc-essing. With
'n' = 1
the multiple slopes are
deactivated and the frame will be exposed with the whole shut-
tertime. With activated slopes the bright pixels will be reset after
<xx>
percent of the shuttertime. The dual value must be smaller
than triple. Depending on the mode, ROI and shuttertime the
first slope can eventually not start at
1
percent. The valid range
can be read out with the
'?'
argument. Only if valid values are
set the function can be activated. See also
'last error'
command.
◄ Figure 7
Images of a 50W spot-
light.
From left to right:
without dynamic range,
with dynamic range dual
slope and with dynamic
range tripple slope.
Summary of Contents for HXC13
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