1、 IEC 62875 Edition 1.0 2015-02 INTERNA TIONAL STA NDA RD Multimedia sy stems and equipment Multimedia e-publishing and e-book technologies Printing specification of texture map for auditory presentation of printed texts IEC 62875:2015-02(en)colourinsideCopyright International Electrotechnical Commis
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11、echnical Commission IEC 62875 Edit ion 1.0 2015-02 INTER NA TIONAL STA NDA R D Multimedia systems and equipment Multimedia e-publishing and e-book technologies Printing specification of texture map for auditory presentation of printed texts INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.160 ISBN 9
12、78-2-8322-2271-3 R egist er ed tr ademar k of t he Int er national Electr ot echnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinsideCopyright International Electrotechnical Commission 2 IEC 62875:2015 IEC 2015 CONTENTS FOREWORD.3 1 Scope.5
13、 2 Normative reference.5 3 Terms and definitions.5 4 Printing specification.6 4.1 General.6 4.2 Size of a texture map.6 4.3 Printing quality of a texture map.6 4.3.1 Printing quality.6 4.3.2 Sampling line.7 4.3.3 Quality measure.8 4.4 Location of a texture map.11 4.5 Location of a notch.11 Annex A(i
14、nformative)Examples of visible quality of a texture map.13 Annex B(informative)Creating process of printed matter including a texture map.15 Figure 1 Sampling lines in case of size M texture map.7 Figure 2 Reflectance pattern of cells on scanning the sampling lines.8 Figure 3 Length between end poin
15、ts of tick marks on a horizontal sampling line.9 Figure 4 Location of a texture map.11 Figure 5 Location of a single notch.12 Figure 6 Location of double notches.12 Figure A.1 Texture map with high printing quality.13 Figure A.2 Texture map including low contrast cells and non-square cells.13 Figure
16、 A.3 Texture map with low sharpness.14 Figure A.4 Texture map processed by non-preserving data compression.14 Figure B.1 Creating process of printed matter including a texture map.15 Table 1 Sizes of a texture map.6 Table 2 Printing quality of a texture map.7 Table 3 Value of print contrast.8 Table 4 Value of symmetry of cell pattern.9 Table 5 Value of squareness.9 Table 6 Value of size accuracy.10 Table 7 Value of tick mark identification.10 Table 8 Value of quiet zone sufficiency.10 Table 9 Va
