181212 and 030101: A/DE48/DE48.HTM
For this page, see
DE48 in English or
DG48 in German.
For the previous page, see
DE47 in English or
DG47 in German.
For the next page, see
DE49 in English or
DG49 in German.
Back to the main page of this colour series, see
../DE in English or
../DG in German.
Remark 1: The output result
produced is the same for the four methods, see the URL DE09
Remark 2: The output result produced here by File Output Linearisation
(OLF) is based on measurement of the LAB* CIELAB
data instead of only lightness L* data used in DE09
For similar Methods to produce a start and linearized output for a single Figure or many Figures of the ISO/IEC-test charts or the complete ISO/IEC-test charts, see DE00
For the accuracy of the Start and Linearized printer output for the digital 16 step colour series, see DE14L
For the accuracy of the Start and
Linearized printer output for the digital 16 step colour series
using the Adobe Acrobat Distiller Versions 2.1, 3.0, 4.0, see DE14D
For only the transfer of the LAB* data to the cmy* data for the digital 16 step colour series W-C, W-M, W-Y and CIE-test colours, see DE48X
For only the transfer of the LAB* data to the cmy* data for the digital 16 step colour series W-O, W-L, W-V and W-N(=CMY), see DE49X
1. Output Linearization (OL) of Fig. B3 and B4 of the ISO/IEC-test chart no. 2
Step S1: Start output of the 16 grey steps.
Remark: The measurement data of CIELAB LAB* of the 16 grey
steps are used to produce an linearized output.
Step S2: linearized output of the 16 equidistant grey steps
in CIE lightness L*
Step S3 (optional): Specification of the reproduction
properties of the start output and the linearized
output according to the method given in Annex G of ISO/IEC
15775: 1999-12.
Short description of the method using
the PS output method for device T:
1. The file www.ps.bam.de/DE48/10T/T10E00NA.PS
is used to produce a PS ouput on a PS printer.
2. The 16 LAB*-CIELAB data of the 16 gray steps
of the output NA are measured in the sequence F to 0.
3. The 16 LAB*-CIELAB data of the output NA
are included in the files FA and RA (R=result, optional
not listed here, for the accuracy data as table and figure see DE14L).
4. The file www.ps.bam.de/DE48/10T/T48E00FA.PS
is used to produce the linearized PS ouput on a PS printer.
5. The 16 LAB*-CIELAB data of the 16 gray steps
of the output FA are measured in the sequence F to 0.
6. The 16 L*-lightness data of the output FA
are included in the file RA (R=result, optional,
not listed here, see the accuracy data as table and figure see DE14L).
Remark: For a PDF output on any printer (instead of the PS output
on a PS printer) the software Adobe Acrobat Distiller or
an equivalent is necessary. The software is used to produce PDF
files from PS files.
Output linearization of Fig. B3 and
B4 of the ISO/IEC-test chart no. 2
Remark: For output linearisation
of CIE-test colours the LAB* data of Fig. D4 of ISO/IEC-test chart
no. 4 are required,
see DE49 to produce this LAB* data
for the series WO, WL, WV and WN (=CMY).
If the start printer output of the ISO/IEC-test chart fails to pass some of the ISO/IEC-tests according to ISO/IEC 15775, e. g. to recognize 16 grey steps or at least 5 of the 8 Landolt -rings in a row, then there is the intention for an linearized printer output.
At least the actual measurement data of lightness L* (or the LAB* CIELAB data) for the colours 48 to 63 (colour series N W ) must be included in the digital file FP.PS, e. g. T48E00FP.PS, arround the line number 83 to produce a linearized output.
Remark 1: In the file T48E00FP.PS the PS operator n* n* n* 0 setcmykcolor is used and therefore the CIELAB data of the colour series N W must be changed.
Remark 2: The CIELAB data of the colours 112 to 128 (colour series A W) must be changed if the PS operator c* m* y* 0 setcmycolor is used in the digital file T48E00FP.PS. The change must be arround the line number 147 to produce a linearized output. This is not the case in the following files FP.PS.
The following output includes two times 64 colours in the top and bottom series
Top series: LAB* data are used in
the file NP and the transfer to the cmy* data in the files CP,
FP
Bottom series: cmy0* data are used in the files NP, CP, FP
1. No Output Linearization (OLN)
and NO LAB*_to_cmy* transfer to produce thus start output (Step
S1a)
Remark: Printers L, Q and S
are model printers with linear, quadratic ans square root output.
| Fig. B3
and B4 of ISO/IEC-test chart no. 2 (N=No Colorimetric Transfer LAB*_to _cmy*, No Output Linearization) |
Format PS and Portable Document Format (Version 3.0), File extention NA.PS, NA.TXT, and NA.PDF | Format PS and Portable Document Format (Version 3.0), File extention NP.PS, NP.TXT, and NP.PDF |
| Printer x=F, PS output method only |
119 / 119 /39 kByte |
|
| Printer x=O, PS and PDF output method |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=T, PS and PDF output method |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=L, PS and PDF output method (L=Linear Measurement Data Table) |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=Q, PS and PDF output method (Q=Quadratic Measurement Data Table) |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=S, PS and PDF output method (S=Square root Measurement Data Table) |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
2. No Output Linearization (OLN)
and LAB*_to_cmy* transfer to produce this start output (Step S1b)
Remark: Printers L, Q and S
are model printers with linear, quadratic ans square root output.
| Fig. B3
and B4 of ISO/IEC-test chart no. 2 (C=Colorimetric Transfer LAB*_to _cmy*, No Output Linearization) |
Format PS and Portable Document Format (Version 3.0), File extention NA.PS, NA.TXT, and NA.PDF | Format PS and Portable Document Format (Version 3.0), File extention NP.PS, NP.TXT, and NP.PDF |
| Printer x=F, PS output method only |
119 / 119 /39 kByte |
|
| Printer x=O, PS and PDF output method |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=T, PS and PDF output method |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=L, PS and PDF output method (L=Linear Measurement Data Table) |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=Q, PS and PDF output method (Q=Quadratic Measurement Data Table) |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=S, PS and PDF output method (S=Square root Measurement Data Table) |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
3. File Output Linearization (OLF)
and LAB*_to_cmy* transfer to produce the linearized output (step
S2)
Remark: Printers L, Q and S
are model printers with linear, quadratic ans square root output.
The actual measurement LAB*
CIELAB data for the colours 1 to 128 (see also DE49.HTM)
of the file FP.PS, e. g. T48E00FP.PS, must be included
in the digital file FP.PS, e. g. T48E00FP.PS, to produce
a linearized output of an actual printer.
| Fig. B3
and B4 of ISO/IEC-test chart no. 2 (F=Colorimetric Transfer LAB*_to _cmy* and File Output Linearization) |
Format PS and Portable Document Format (Version 3.0), File extention FA.PS, FA.TXT, and FA.PDF | Format PS and Portable Document Format (Version 3.0), File extention FP.PS, FP.TXT, and FP.PDF |
| Printer x=F, PS output method only |
119 / 119 /39 kByte |
|
| Printer x=O, PS and PDF output method |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=T, PS and PDF output method |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=L, PS and PDF output method (L=Linear Measurement Data Table) |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=Q, PS and PDF output method (Q=Quadratic Measurement Data Table) |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
| Printer x=S, PS and PDF output method (S=Square root Measurement Data Table) |
119 / 119 /39 kByte |
119 / 119 / 39 kByt e |
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