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FAQ

    June 22, 2022

    Virtual Colorimeter

    Any measurement device like a colorimeter if colorimetrical data is available (L*a*b* D50/2°) can be tracked by Instrument Inspector.

    CGATS .txt file with sample data (red  color) for ChromaChecker Instrument Inspector Target I-42 (additional start KCMY patches are skipped)

    Measurement patches order:  —> start from [1] Black, next [2] Yellow   ... up to last [42] Green.


     

    Procedure

    1. Measure patches in proper order 
    2. Write down or export in possible L*a*b* measurements for each 42 patches
    3. Replace values in the sample file below
    4. Save it in a text file (.txt)
    5. Upload to Instrument Inspector

     

    CGATS sample file:

    CGATS.17CGATS.17
    ORIGINATOR "ChromaChecker"
    DESCRIPTOR "ChromaChecker"
    CREATED "2017-09-14 08:15:14"
    INSTRUMENTATION "Virtual Instrument"
    SAMPLE_BACKING "white"
    MEASUREMENT_CONDITION "M0"
    MAKEREADY_MODE "Production"
    OPERATOR_NAME "Name"
    CUSTOMER_NAME "Name"
    JOB_NAME "ChromaChecker Target"
    JOB_ID "X-42"
    PRESS_NAME "auto-recognition"
    PAPER_NAME "auto-recognition"
    NUMBER_OF_FIELDS 8
    BEGIN_DATA_FORMAT
    SAMPLE_ID CMYK_C CMYK_M CMYK_Y CMYK_K LAB_L LAB_A LAB_B
    END_DATA_FORMAT
    NUMBER_OF_SETS 42
    BEGIN_DATA

    1

    100.00

    100.00

    100.00

    0.00

    22.80

    0.10

    -2.02

    2

    7.06

    1.18

    100.00

    0.00

    89.31

    -8.67

    88.17

    3

    43.14

    30.98

    32.16

    0.00

    68.06

    -0.45

    -2.11

    4

    1.18

    38.82

    100.00

    0.00

    76.12

    26.49

    77.99

    5

    98.82

    25.88

    1.18

    0.00

    53.40

    -21.73

    -56.91

    6

    23.92

    100.00

    90.98

    0.00

    44.83

    56.04

    24.55

    7

    29.02

    1.18

    14.12

    0.00

    86.92

    -12.55

    -5.85

    8

    5.10

    98.82

    98.82

    0.00

    50.23

    62.05

    38.10

    9

    14.12

    12.16

    34.12

    0.00

    86.00

    -0.19

    17.88

    10

    67.06

    100.00

    83.92

    0.00

    32.88

    25.22

    4.17

    11

    16.86

    1.96

    10.98

    0.00

    90.16

    -4.92

    -1.77

    12

    60.00

    9.80

    1.18

    0.00

    71.58

    -10.46

    -32.98

    13

    100.00

    83.14

    1.96

    0.00

    28.18

    14.66

    -50.63

    14

    7.06

    23.92

    50.98

    0.00

    82.58

    9.41

    32.31

    15

    43.14

    100.00

    41.18

    0.00

    40.87

    49.48

    -2.10

    16

    38.82

    23.92

    41.96

    0.00

    71.87

    -4.27

    8.11

    17

    1.18

    70.98

    58.04

    0.00

    67.38

    52.42

    28.41

    18

    100.00

    87.84

    18.04

    0.00

    25.90

    7.13

    -31.24

    19

    32.16

    1.18

    100.00

    0.00

    83.78

    -30.65

    79.84

    20

    96.08

    90.98

    89.80

    0.00

    34.04

    -0.08

    -1.34

    21

    87.06

    34.90

    1.18

    0.00

    55.43

    -9.44

    -52.35

    22

    1.18

    89.80

    16.86

    0.00

    58.62

    67.66

    2.92

    23

    67.84

    1.18

    100.00

    0.00

    72.76

    -63.94

    55.89

    24

    27.06

    10.98

    14.12

    0.00

    82.51

    -3.21

    -6.31

    25

    100.00

    49.80

    27.84

    0.00

    42.18

    -20.97

    -33.99

    26

    9.02

    3.92

    5.10

    0.00

    93.63

    -0.27

    -4.75

    27

    41.18

    83.14

    100.00

    0.00

    44.95

    31.28

    32.43

    28

    63.14

    1.18

    54.90

    0.00

    77.76

    -55.24

    9.19

    29

    25.88

    61.18

    3.14

    0.00

    62.52

    30.86

    -15.23

    30

    65.10

    52.94

    52.16

    0.00

    52.89

    -0.04

    -1.71

    31

    36.86

    20.00

    20.00

    0.00

    75.08

    -2.65

    -7.47

    32

    43.92

    85.10

    1.18

    0.00

    49.18

    47.17

    -32.23

    33

    14.90

    1.18

    50.98

    0.00

    89.98

    -10.97

    36.59

    34

    100.00

    49.02

    100.00

    0.00

    37.12

    -40.85

    16.03

    35

    1.18

    25.10

    100.00

    0.00

    81.35

    14.21

    84.19

    36

    32.16

    7.84

    3.14

    0.00

    83.42

    -3.43

    -17.51

    37

    100.00

    72.94

    1.18

    0.00

    38.77

    13.63

    -63.87

    38

    27.06

    27.84

    60.00

    0.00

    73.10

    1.87

    26.02

    39

    100.00

    1.18

    45.88

    0.00

    58.89

    -57.69

    -16.12

    40

    1.96

    40.00

    7.84

    0.00

    79.42

    26.51

    -0.61

    41

    76.08

    83.92

    1.18

    0.00

    41.52

    22.64

    -33.67

    42

    100.00

    1.18

    98.04

    0.00

    53.15

    -70.70

    25.67

    END_DATA

     

     

     

     

    Other Targets

    Create a corresponding Target CGATS file.

    CMYK reference values have to be exactly as specified for a specific Target (second decimal place)

     

    Tips

    Some software that drives Instruments may build a Job Template using a list of patches - in most cases,
    a CGATS file can be uploaded. 

    If your software can manage metadata:

    PRESS_NAME "auto-recognition"
    PAPER_NAME "auto-recognition"

    you may use it for the auto-recognition feature. Files uploaded by Uploader will be auto-recognized. This requires a corresponding auto-recognition setting on Instrument/Target side. 

     

     

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