AVIIVA® EM1
58
1043D - AVIIVA EM1 –04/11
e2v semiconductors SAS 2011
6.3.13
Statistics and Line Profile
This function allows the User to get some statistics on
a pre-defined ROI. On request, the Camera acquires
and then calculates some key values as the min, the
max, the average or the standard deviation in this
Region of Interest.
The grab and calculation command and also the
collection of the results is not performed in real time
as it is done through the register access.
The Calculated values are detailed as following :
o
Pixel average Value
(
PixelROIMean
) :
Average
gray level value calculated on whole Region of
interest
: Unsigned format value : U12.4
o
Pixel Standard deviation
(
PixelROIStandardDeviation
) :
standard deviation
of all the pixel gray level values of Region of
interest
: Unsigned format value : U12.4
o
Pixel Min value
(
PixelROIMin
) :
Minimum gray level pixel value on the whole region of interest.:
Unsigned format value : U12.4
o
Pixel Max Value
(
PixelROIMax
) :
Maximum gray level pixel value on the whole region of interest:
Unsigned format value : U12.4
If PixelRO PixelROIWidth > SensorWidth, then end of the ROI is set at :
PixelROIStart + PixelROIWidth - SensorWidth
It’s the way to define a ROI composed of 2 x strips at the two sides of the sensor line :
SensorWidth
SensorROIStart
ROI
ROI
