Download High Performance Image Control System, Version 6.4 User Manual

Sequence processing dialogue
Averaging
If you press Average, all data (images or profiles) of the current sequence will
be averaged. This can be used for creating noise reduced data.
It is possible to exclude some data of the sequence from averaging. This is e.g.
useful, if one or several data of the sequence show unwanted contents.
Display the data you want to exclude from averaging and click exclude this
sample in order to eliminate this data from averaging.
Finally, hit the Proceed button.
In case of image data, the result will be displayed in a new image window. In
case of profiles, the result will be displayed in the Profile Display window.
The result image is always a 16 bit type. All images are averaged, and in the
case that the original images are no 16 bit images they are multiplied by an appropriate factor to use the full 16 bit depth without exceeding it. In the case of
photon counting images the images are only summed up without averaging. The
following formulas are applied to normal and photon counting images:
RN =
∑I
n
∗f
n
, R PC = ∑ I n
Where RN is the result pixel value for normal images, RPC is the result pixel
value for photon counting images, In is the pixel value of the image n (at the
shifted location), f is a factor indicated below and n is the number of samples.
Data type of the
original images
16 bit
14 bit
12 bit
10 bit
8 bit
High Performance Image Control System, HiPic
f
1
2
8
32
128
Acquisition Menu • 131