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

User Manual
PCS Sensor Software
Word 5: [Y] Green Value (Phase I)
Word 6: [Z] Blue Value (Phase I)
Word 7: [X] Red Value (Phase II)
Word 8: [Y] Green Value (Phase II)
Word 9: [Z] Blue Value (Phase II)
Phase I: Light Phase / no compensation
Phase II: Dark Phase
Note: Ranges are 0x0000 - 0x0FFF. The values are averaged according to 0x29. 0x0000
represents the darkest, 0x0FFF the brightest value.
2.2.4 Sensor Correction
0x30 : Set Correction Matrix Mode
Send : 1 word
0 : Disabled
1 : Sensor Level Correction
2 : Sensor Matrix Correction
0x31 : Read Correction Matrix Mode
Response: 1 word (like 0x30)
0x32 : Set Correction Matrix
Send: 9 x Fixed Point
Matrix formula:
Xc = a00*R + a01*G + a02*B
Yc = a10*R + a11*G + a12*B
Zc = a20*R + a21*G + a22*B
Send order:
a00, a01, a02, a10, a11, a12, a20, a21, a22
Note: The values of the correction matrix are only limited within the range of the fixed point
numbers, but to let the system perform reasonable color transformations, the result of each
channel should be between 0.0-1.0. The settings can be verified by using command 0x3F.
0x33 : Read Correction Matrix
Response: 9 x Fixed Point (like 0x32)
0x3F : Read Corrected Channels
Response: 3 x Fixed Point
Fixed Point 1: Corrected X Channel
Fixed Point 2: Corrected Y Channel
Fixed Point 3: Corrected Z Channel
Rev. 5.1 (2009-01-28) Subject to change
22-3061-01 - 34 -