Genie_TS_Series GigE Vision Camera
Operational Reference
89
Lookup Table (LUT) Overview
The Genie TS monochrome camera includes 4 user programmable LUT tables as components of its
embedded processing features. A LUT is used for operations such as gamma adjustments, invert
and threshold processes.
The monochrome camera LUT table is a 10-bit or 12-bit LUT (per pixel – see feature
LUT Size
) as
illustrated in the following figure (see
Processing path bits per pixel
). Pixel data when read out of
the sensor is passed through the LUT memory array, where the new programmed pixel value is
then passed to the Genie output circuit. The LUT data table is stored along with other parameters
with the user configuration function.
. .
.
. .
.
0
1
2
3
1 0 2 0
1 0 2 3
1 0 2 2
1 0 2 1
1 0 2 3
1 0 2 2
1 0 2 1
1 0 2 0
2
1
0
3
O u t p u t
C i r c u i t
S e n s o r &
A / D
C i r c u i t
P i x e l
D a t a
S i m p l i f i e d G e n i e T S L U T B l o c k D i a g r a m
( 1 0 - b i t e x a m p l e )
P r o g r a m m e d a s
I n v e r t F u n c t i o n
Simplified 10-bit LUT Block Diagram
Sharpness Type Overview
When activating the monochrome camera feature
sharpnessMode
, the feature
sharpnessType
selects the sharpening function applied to the image. The image filter functions utilize 3x3 matrix
coefficients as described below.
The sharpening function requires a minimal acquisition of 4 lines. An acquisition of less vertical
lines is not supported by this correction algorithm.
Name: Smoothing More
Name: Smoothing Less
Scale Value = 1/9.0
Scale Value = 1/32.0
+1 +1 +1
+1 +4 +1
+1 +1 +1
+4 +12 +4
+1 +1 +1
+1 +4 +1
Name: Sharpen Less
Name: Sharpen More
Scale Value = 1/2.0
Scale Value = 1/1.0
-1 -1 -1
-1 -1 -1
-1 +10 -1
-1 +9 -1
-1 -1 -1
-1 -1 -1
