Tiêu chuẩn iso 17972 2 2016

© ISO 2016 Graphic technology — Colour data exchange format (CxF/X) — Part 2 Scanner target data (CxF/X 2) Technologie graphique — Échange des données de couleur en utilisant CxF — Partie 2 Données ci[.]

Graphic technolog y — Colour data

Part 2:

Te h olo ie gra hique — Éch n e des do n e s de co leur en

utilisant CxF—

Partie 2: Do n e s cible s du sca ne entra te s

Fir t edition

2 16-0 -0

COPYRIGHT PROTECTED DOCUMENT

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F reword i v

Introduction v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms an definitions 1

3.1 Te ms 1

3.2 Definitions 2

4 Symbols and abbreviated terms 2

5 Req irements 3

5.1 General desc iption of a C F X fie for data exchang e 3

5.2 Req ir ement of a C F X-2 fie for ISO 1 641data exchang e 3

A nne x A (informative)Colo r e xchang e for mat map ing to ISO 28 78 5

A nne x B (informative)Cx F3 s hema 10

A nne x C (informative) Example fie 11

Biblog raphy 12

ISO (he Int ernational Org nization for Stan ardization) is a worldwidefede ation of national s an ards

b dies (ISO membe b dies) The work of pr p ring Int ernational Stan ards is normaly car ied out

through ISO t ech ical committ ees Each membe b dy int er st ed in a subje t for w hich a t ech ical

committ ee has be n es a lshed has the right t o be r pr sent ed on that committ ee Int ernational

org nizations, g ove nmental an non-g ove nmental, in laison with ISO, also take part in the work

ISO cola orat es closely with the Int ernational Ele trot ech ical C mmis ion (IEC) on al matt ers of

ele trot ech ical s an ardization

The proc d r s used t o develo this document an those int en ed for it furthe maint enanc ar

desc ibed in the ISO/IEC Dir ctives, Part 1 In p rticular the dife ent a pro al c it eria ne ded for the

dife ent ty es of ISO document should be not ed This document was draft ed in ac ordanc with the

edit orial rules of the ISO/IEC Dir ctives, Part 2 ( e www.iso.org dir ctives)

A tt ention is drawn t o the p s ibi ity that some of the element of this document ma be the subje t of

p t ent right ISO shal not be held r sp nsible for identifying any or al such p t ent right Detais of

any p t ent right identified d ring the develo ment of the document wi be in the Introd ction an / r

on the ISO ls of p t ent de larations r c ived ( e www.iso.org p t ent )

Any trade name used in this document is information given for the convenienc of use s an does not

cons itut e an en orsement

F or an ex lanation on the meaning of ISO spe ific t erms an ex r s ions r lat ed t o conformity

as es ment, as wel as information a out ISO’ s adhe enc t o the WTO principles in the Te h ical

Bar ie s t o Trade (TBT) se the fol owing URL: F or word - Sup lementary information

The committ ee r sp nsible for thisdocument is ISO/TC1 0, Gra hic techn lo y

ISO 1 9 2 consis s of the fol owing p rt , un e the g ene al title G ra hic techn lo y — Colo r data

excha ge frmat (CxF/X):

— Part 1: R elatio ship to CxF3 (CxF/X)

— Part 2 : Sc an e target data (CxF/X- 2)

— Part 3 : Outp t target data (CxF/X-3)

— Part 4 : S ot c olo r charac te i s atio data (CxF/X-4)

ISO 1 9 2def ines methods for the use of Cx 3 t o ex chang e measur ment data an as ociat ed metadata

within the gra hic art in us ry an for the ex chang e of these files betwe n gra hic art use s It is a

multi-part document w he e each p rt is int en ed t o r sp n t o dife ent workflow r q ir ment The

g oal throughout the v rious p rt of ISO 1 9 2 has be n t o maintain the degr e of flexibi ty r q ir d

w hi e minimizing the u c rtainty of the data ex chang ed

ISO 1 9 2-1 def ines the use of the publcly a aia le C lour Ex chang e F ormat, ve sion 3 (C F ), for

pr pr s data ex chang e an ve ification

This p rt of ISO 1 9 2 co e s the use of Cx w hen ex changing data from ISO 1 641 This p rt of

ISO 1 9 2 is not designed t o r plac ISO 1 641, but t o define an updat ed, ve ifia le, method of data

ex chang e using C F, acting as a sup lement t o ISO 1 641:1 9 , 4.6 an 4.7 X-Rit e Inc the original

c eat or of the C F file format, claimsno int ele tual pro e ty right t o the mat erials used in this p rt of

ISO 1 9 2

S an e targ et ar one of the earl es defined data ex chang e use cases in the gra hic art an contin e

t o be used for calbration an charact erization of scan e s an othe devic s Traditionaly, data has

be n pro ided in ACSI format using a keyword f ile The dir ct ma ping of exis ing data t o the updat ed

Cx /X- 2 encoding was one of the primary conc rns in writing this p rt of ISO 1 9 2

The folowing files ar part of this p rt of ISO 1 9 2, an ar inclu ed as ele tronic inse t :

— Cx 3_ Cor xsd;

— Cx 3_S hema_Dia ram.pdf;

— S an e targ et Cx /X- 2.cxf;

— S an e targ et.txt

Graphic technolog y — Colour data exchang e format

Part 2:

This part of ISO 1 9 2 def ines an ex chang e format for targ et input v lues, colour an proc s control

data r lating t o scan e targ et (an the as ociat ed metadata ne es ary for it pro e int erpr tation)

in ele tronic form This p rt of ISO 1 9 2 inclu es the use of a Cust omR esour e element within the

Cx framework t o def ine a minimum set of data for ex chang e an identify the data as being p rt of

ISO 1 641

2 Normati ve r eferences

The folowing document , in w hole or in p rt, ar normatively r fe enc d in this document an ar

in ispensa le for it a pl cation F or dat ed r fe enc s, only the edition cit ed a pl es F or u dat ed

r fe enc s, the lat es edition of the r fe enc d document ( inclu ing any amen ment )a pl es

ISO 1 641:1 9 , G ra hic techn lo y — Prepr s s digital data excha ge — Colo r targets fr in ut s c an e

c albratio

ISO 1 9 2-1, Gra hic techn lo y — Colo r data excha ge frmat — Part 1: R elatio ship to CxF3 (CxF/X)

3 Terms and definitions

F or the purposes of this document, the folowing t ermsand definitions a ply

3.1 Terms

NOTE T e speling of terms taken from Colour Ex chang Format v3.0 is not altered from that used in the

normative reference A specif ic e ample is the word color inst ead of colour

3.1.1

ColorSpecificatio

information a out the ColorValue (3.1.2) inclu ing it sour e (measur ment spe if ications),

i luminant/ bse ve calculation method (ris imulus spe if ications) and phy sical at ribut es of the

o jec ts (3.1.5) ( iz , q antity, finish, et c )

3.1.2

Color Value

one of a n mbe of defined color spac ty esthat can hold v lues an as ociat ed information r lat ed t o

that spe ific ty e of devic in epen ent colour sp c

[ SOURCE:Color Ex chang e F ormat v3.0]

CustomReso r es

“ext ensible” p rt of Cx 3, ad itional information not inclu ed in the C F Cor a out colour o je t

an the f ile it elf that is conside ed a plcation spe if ic in natur an not g ene aly of use t o al othe

a plcations

[ SOURCE:Colour Ex chang e F ormat v3.0]

3.1.4

DeviceC lor Value

one of a n mbe of def ined colour sp c ty es that can hold v lues an as ociat ed information r lat ed

t o that pe if ic ty e of devic dependent colour sp c

[ SOURCE:Color Ex chang e F ormat v3.0]

3.1.5

o ject

used t o identify each spe ific “C lour it em” that is being desc ibed

3.2 Definitions

3.2.1

profi e

set of mathematical v lues or binary s ructur that alow s trans ormation t o / from one devic colour

spac t o anothe

Not e 1t o entry: Prof iles are stored in the Prof ileColection an are shared an referenced by the ColourValues

3.2.2

resour es

information a out each colour o je t that is of int er s t o al r ade sof theCx f ile

Not e 1t o entry: Also refer ed t o as the “CxF3 Core”, it is def ined by the CxF3-Core namespace s hema

3.2.3

s hema

XML document that, conforming t o the spe if ications es a l shed b the World W ide Web C nsortium,

defines the s ructur of a clas of XML document

3.2.4

extensible mark up languag e

XML

set of rules for encoding document ele tronicaly

3.2.5

XSD

XML schema def inition

4 Symbols and abbr eviated terms

The folowing documentation conventions ar used

Names of XML element ar shown in b ld ty e, for ex mple, Reso r es

Names of XML at ribut esar shown in italcs, for ex mple, S otColorName

XML XPaths ar used t o identify XML element F or ex mple, co tainer/co tained r fe s t o an element

(contained)that is a chid of anothe element (co tainer)

Simiarly, XML XPaths ar used t o r fe t o XML at ribut es, for ex mple, element1/@Name r fe s t o an

at ribut e ( Name) of an element (element1)

5 Requir ements

5.1 General des r iption of a Cx F/X fi e for data e xchang e

The s an ard C lour Data Ex chang e F ormat as pr sent ed in ISO 1 9 2-1 ca tur s file information such

as c eation an owne ship, cor colour information ( he R esour es) an any ext en ed information

(Cust omR esour es) In this p rt of ISO 1 9 2, Cust omR esour es ar used t o def ine the minimum

r q ir d data for ISO 1 641 data ex chang e via Cx /X- 2 Any Cx /X file shal me t the folowing

r q ir ment

The FieInformation element of a Cx /X f ile shal inclu e Cr at or, Cr ationDat e and Desc iption

The Desc iption element of a Cx /X file shal inclu e “Cx /X” an the n mbe of the a pl ca le

Int ernational Stan ard with w hich the Cx /X f ile comples

If the file is t o be used in sup ort of an Int ernational Stan ard, it shal inclu e the n mbe of the

Int ernational Stan ard in the C mment t ext

A Cx /X f ile shal v ldat e a ains the C F S hema ( e An ex B) In al cases, a Cx /X document should

ha e the ext ension “.Cx ”

A Cx /X f ile shal be s ructur d as shown in Figur 1

Figure 1 Cx /X fie structure

NOTE T e speling of terms an elements taken from Color Ex chang Format v3.0 are not alt ered from that

used in the normative reference A specif ic e ample is the word color inste d of colour

5.2 Requir ements of a Cx F/X-2 fi e for ISO 12641 data e chang e

The e ar seve al data r q ir ment s at ed in ISO 1 641:1 9 , 4.6 Originat ors of targ et ar r q ir d

t o pro idethe folowing:

— for al targ et b t ch spe if ic mean an s an ard deviation colourimetric, data shal be a aia le for

each p t ch in the form of cor esp n ing colorimetric v lues t o two de imal plac s;

— calbrat ed targ et shal sup ly the measur d colorimetric data for al targ et p t ches

Ta le 1 en me at es the r q ir d element for Cx /X data ex chang e of scanne targ et data Annex A

pro idesa complet e ma ping of al keywords from ISO 2 1 8w hich is a supe set of the keywords used

in ISO 1 641 An ex mple of the use of these in a Cx /X- 2 f ile is pro ided in An ex C

Table 1 Cx /X- 2 req ired fields

R equir d Fields

Input v lues

Measur d v lues (Eithe XYZ or L b )

One is r quir d

R equir d of Man factur rs only

A nne x A

A 1 General

ISO 2 1 8 is the s an ard t ext f ile format for ex changing colour measur ment data an pro ides

ma ping in b th ASCI an XML The widely used ASCI t ext file consis s of a Pr amble se tion containing

originat or information, keyword def initions, et c folowed b one or mor data se tions, each consis ing

of heade an data subse tions The BE IN_DAT A_FORMAT an END_DAT A_FORMAT del mit ers define

the actual data ty es contained in the folowing ta les The BE IN_DAT A an END_DAT A delmit ers

mark the subse tion containing the actual colour information in ta ular form ISO 2 1 8 t ext f iles can

contain devic , colorimetric (L b, XYZ, et c ), densit ometric, spe tral, naming an othe information

Ta le A.1 demons rat es that al significant data contained in a ISO 28 7 f ile can be ca tur d an

maintained in a Cx file A brief desc iption of the definition of the original ASCI keyword is also

pro ided This demons ration does not use a Cust omR esour e in this case, but, a Cust omR esour e could

be used t o make some of the a plcation spe if ic data mor s ructur d with defined en me ations an

r q ir ment

A 2 Field and Element mapping

Table A.1 281 78 fields to Cx 3 equiv alents

R equir d Fields

org nization or in ivid al

that c e ted the data f ile

cont ents of the data f ile

the data f ile T e form for this

dat e is C YY-MM-

D T h:mm:s [Z |±h :mm ]

Numb r of Fields Not Re uir d (in e e t in XML sr ctu e) Numb r o fields (data frmat

ide tifiers) th t a e included

in th data frmat definitio

th t flows

Data Format Not Re uir d (in e e t in XML sr ctu e) Ma k s th b gin in a d e d

o a data frmat definition

END_D ATA_FO RMAT shal b

p ec eded b

B EGIN_D ATA_F RMAT

Numb r of S ts of Data Not Re uir d (in e e t in XML sr ctu e) Numb r o r p titions o s ets

o data, i.e th n mb r o

ISO 2817 CxF 3.0 Des criptio

Optional Fields

Comments are ignored by

automat ed re der

Comments in icat e t o user

that he information that

fol ows is of informative

interest Comments ne d not

b enclosed in q ot es

Comments may oc ur

an where ex cept within a

ta le

Targ tT pe

en merated list of IT8 targ t

ty es

Instrumentation

Measur mentSpec/Devic … Used to report the specif ic

instrumentation used (e.g

man facturer, model n mb r

an serial n mb r, et c ) t o

g nerate the data report ed

Man facturer

Measur mentSpec/Device/Man factur r Name of the device

man facturer

Model

Measur mentSpec/Device/Model Both the device model

n mb r an revision may b

recorded here

S rial_Numb r Measur mentSpec/Device/S rialNumbe Device serial n mb r

Me surement Ge metry

Measur mentSpec/ Geometry h ic T e ty e of me surement,

either reflection or

transmis ion, should b

in icat ed along with details

of the g ometry an the

aperture size an shape

Me surement S ur e

Measur mentSpec/Device/Devic Il umination Ilumination (e.g

incan es ent, day light, colour

t emperature, et c ) used

d ring spectral me surement

Filt er Measur mentSpec/Device/Devic Fi t er Identif ies the use of p y sical

f ilter(s)d ring me surement

T is is ty ical y used to

denote the use of f ilt er such

as none, D65, R ed, Gre n or

Blue

Polarization Measur mentSpec/Device/Devic Polarization Identif ies the use of a

p y sical polarization f ilter

d ring me surement

Alowed values are “yes”,

“ none” or “ na”

Table A.1 (c ontin ed)

ISO 2817 CxF 3.0 Des criptio

Weighting F nction Tris imulusSpec /Obse ve In icates such fu ctions as:

the CIE stan ard o server

fu ctions used in the

calculation of various data

parameter (2° an 1 °);

CIE stan ard il uminant

fu ctions used in the

calculation of various data

parameter (e.g D5 , D65,

et c.); density status response;

et c

comp ting a value from

me sured data.Name is the

name of the calculation,

parameter is the name of the

parameter used in the

calculation an value is the

value of the parameter

mat erial used b hin the

sample d ring me surement

Alowed values are “black” ,

“white “self” or “ na”

Man facturer Fi eInformation/Ta /@ “Ma u a tu e ”

In icates the man facturer

of the sample from which the

data was me sured

Identif ies the material or

substrat e on which the targ t

was prod ced, using a code

identifying the mat erial

Identif ies the ty e of targ t

b ing me sured, e.g IT8.7/ 1,

IT8.7/ , user -def ined, et c

Colorant (s) Devic C lorValues /ColourR ecipe

Identif ies the colourant (s)

used in c e ting the targ t

Prod ction Date Fi eInformation/Ta /@ “Prod_Date ”

Identif ies year an month of

prod ction of the targ t in

the form y y :mm

Print Con itions Fi eInformation/Ta /@Print Co ditio s

Used t o def ine the

characteristic of the printed

she t b ing reported Where

stan ard con itions have

b en def ined (e.g SWOP at

nominal) named con itions

may suff ice Otherwise,

detailed information shal b

provided

Uniq ely identif ies p ysical

samples

Uniq ely identif ies colour an Table A.1 (c ontin ed)