Software manual for use with color sensors of the Series - Silicann

User Manual
PCS Sensor Software
Figure 7: Color space modes
Table 1: Color spaces depending on the two types PASSIVE and ACTIVE
PASSIVE (Body colors) ACTIVE (Self-shining)
XYZ XYZ
xyY xyY
L*a*b* u’v’L*
L*u*v*
Lab99
Hint 1:
Due to the limited hardware accuracy of the sensor and the used non-standard illumination
source (white light LED), the obtained color values in the corresponding color spaces are not
colorimetrical accurate!
Hint 2:
The ranges of the color values in the parameterization software differ from the common
ranges for color values! Table 2 shows the range of the color values for the several color space
modes of the software in comparison to the common ranges. The visible range of the color
diagrams is pre-defined to a suitable value. To fit the color diagram scales to the desired
range, the axes can be adjusted by simply editing the numbers on the corresponding
axes.
Table 2: Axis scaling for the parameterization software
Color space common range program range Multiple
XYZ X: 0…100
Y: 0…100
Z: 0…100
xyY x: 0…1
y: 0…1
Y: 0…100
L*a*b* L*: 0…100
a*: -500…+500
b*: -200…+200
L*u*v* L*: 0…100
u*: -1300…+1300
v*: -1300…+1300
u’v’L L: 0…100
u’: 0…1
v’: 0…1
DIN99 L: 0…100
a: -500…+500
b: -200…+200
X: 0…100
Y: 0…100
Z: 0…100
x: 0…100
y: 0…100
Y: 0…100
L*: 0…100
a*: -500…+500
b*: -200…+200
L*: 0…100
u*: -1300…+1300
v*: -1300…+1300
L: 0…100
u’: 0…100
v’: 0…100
L: 0…100
a: -500…+500
b: -200…+200
Rev. 5.1 (2009-01-28) Subject to change
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