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.

Start and linearized printer output of Fig. B3 and B4
of the ISO/IEC-test chart no. 2 (offset range) according to ISO/IEC 15775:1999-12

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

There are four different methods to linearize the printer output:
1. By Output Linearization (OLF) data in the file (F)
2. By Output Linearization (OLS) data in the Distiller Startup (S) directory
3. By Output Linearization (OLD) data in the PostScript device (D) memory
4. Output Linearization (OLP) data in the PostScript Printer Driver PPD file (P)


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

F48E00NA .PS / .TXT / PDF
119 / 119 /39 kByte

-
Printer x=O, PS and PDF output method

O48E00NA .PS / .TXT / PDF
119 / 119 /39 kByte

O48E00NP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=T, PS and PDF output method

T48E00NA .PS / .TXT / PDF
119 / 119 /39 kByte

T48E00NP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=L, PS and PDF output method
(L=Linear Measurement Data Table)

L48E00NA .PS / .TXT / PDF
119 / 119 /39 kByte

L48E00NP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=Q, PS and PDF output method
(Q=Quadratic Measurement Data Table)

Q48E00NA .PS / .TXT / PDF
119 / 119 /39 kByte

Q48E00NP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=S, PS and PDF output method
(S=Square root Measurement Data Table)

S48E00NA .PS / .TXT / PDF
119 / 119 /39 kByte 

S48E00NP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Top series: The PostScript operator LAB* setcolor is used.
Bottom series: The PostScript operator cmy0* setcmykcolor is used.
Both series are different and No Output Linearisation (OL) is applied.

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

F48E00CA .PS / .TXT / PDF
119 / 119 /39 kByte

-
Printer x=O, PS and PDF output method

O48E00CA .PS / .TXT / PDF
119 / 119 /39 kByte

O48E00CP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=T, PS and PDF output method

T48E00CA .PS / .TXT / PDF
119 / 119 /39 kByte

T48E00CP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=L, PS and PDF output method
(L=Linear Measurement Data Table)

L48E00CA .PS / .TXT / PDF
119 / 119 /39 kByte

L48E00CP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=Q, PS and PDF output method
(Q=Quadratic Measurement Data Table)

Q48E00CA .PS / .TXT / PDF
119 / 119 /39 kByte

Q48E00CP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=S, PS and PDF output method
(S=Square root Measurement Data Table)

S48E00CA .PS / .TXT / PDF
119 / 119 /39 kByte 

S48E00CP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Top series: The PostScript operator LAB* setcolor is transferred by a PS procedure LAB*_to_cmy* to cmy0* setcmykcolor.
Bottom series: The PostScript operator cmy0* setcmykcolor is used.
Both series are identical. No Output Linearisation (OL) is applied.

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

F48E00FA .PS / .TXT / PDF
119 / 119 /39 kByte

-
Printer x=O, PS and PDF output method

O48E00FA .PS / .TXT / PDF
119 / 119 /39 kByte

O48E00FP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=T, PS and PDF output method

T48E00FA .PS / .TXT / PDF
119 / 119 /39 kByte

T48E00FP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=L, PS and PDF output method
(L=Linear Measurement Data Table)

L48E00FA .PS / .TXT / PDF
119 / 119 /39 kByte

L48E00FP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=Q, PS and PDF output method
(Q=Quadratic Measurement Data Table)

Q48E00FA .PS / .TXT / PDF
119 / 119 /39 kByte

Q48E00FP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Printer x=S, PS and PDF output method
(S=Square root Measurement Data Table)

S48E00FA .PS / .TXT / PDF
119 / 119 /39 kByte 

S48E00FP .PS / TXT / PDF
119 / 119 / 39 kByt e 
Top series: The PostScript operator LAB* setcolor is transferred by a PS procedure LAB*_to_cmy* to cmy0* setcmykcolor.
Bottom series: The PostScript operator cmy0* setcmykcolor is used.
By application of Output Linearisation (OL) both series have changed (except x=L). Both series are still identical.

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