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GB/T 20493.3-2018 English PDF

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US$344.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 20493.3-2018: Electronic imaging -- Test target for scanning of office documents -- Part 3: Test target for use in lower resolution applications
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20493.3-2018	344	Add to Cart	3 days	Electronic imaging -- Test target for scanning of office documents -- Part 3: Test target for use in lower resolution applications	Valid

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Basic data

Standard ID: GB/T 20493.3-2018 (GB/T20493.3-2018)
Description (Translated English): Electronic imaging -- Test target for scanning of office documents -- Part 3: Test target for use in lower resolution applications
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A14
Classification of International Standard: 37.080
Word Count Estimation: 18,140
Date of Issue: 2018-12-28
Date of Implementation: 2019-07-01
Regulation (derived from): National Standard Announcement No. 17 of 2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 20493.3-2018: Electronic imaging -- Test target for scanning of office documents -- Part 3: Test target for use in lower resolution applications

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Electronic imaging--Test target for scanning of office documents--Part 3. Test target for use in lower resolution applications ICS 37.080 A14 National Standards of People's Republic of China Electronic imaging office document scanning test target Part 3. Lower resolution application test target Part 3. Testtargetforuseinlowerresolutionapplications (ISO 12653-3.2014, IDT) Published on.2018-12-28 2019-07-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Use of this part 2 4.1 General 2 4.2 Factors affecting quality 2 5 test target 2 5.1 General 2 5.2 Description of test elements 2 5.3 Base 6 5.4 Double-sided scanner test target 6 6 Procedure 6 6.1 System Initial Settings 6 6.2 Use of image enhancement technology and image compression technology 6 6.3 Test Target Scan 6 6.4 Internal Test System 6 6.5 Frequency 6 7 Evaluation of the results 7 7.1 Evaluation 7 7.2 Screen resolution 7 8 Test Method 7 8.1 Test Element 7 8.2 Test procedure 7

Foreword

GB/T 20493 is divided into 3 parts. ---Electronic imaging office document black and white scanning test target Part 1. Features; ---Electronic imaging office document black and white scanning test target part 2. use method; ---Electronic imaging office document scanning test target Part 3. Lower resolution application test target. This part is the third part of GB/T 20493. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This section uses the translation method equivalent to ISO 12653-3.2014 "Electronic imaging office document scanning test target Part 3. Lower resolution application test target. The documents of our country that have a consistent correspondence with the international documents referenced in this part are as follows. --- GB/T 12823.4-2008 Photometric density measurement - Part 4. Geometric conditions for reflection density (ISO 5-4.1995, IDT). Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This part is proposed and managed by the National Document Imaging Technology Standardization Technical Committee (SAC/TC86). This section drafted by. China Post Wenshi Center (China Post Stamp Museum), China Ordnance Industry Archives. The main drafters of this section. Zhang Ying, Li Dongmei, Liu Wei, Xu Hongmei, Li Ming.

Introduction

This part of GB/T 20493 describes the evaluation procedure for an office document scanning system set to scan files below 300 dpi. The system can be used to scan in black and white, grayscale or color. Test patterns and targets for microfilming and faxing already exist, but these test patterns and targets are used in specific areas and cannot be satisfied File scanning system users need. GB/T 20493.1 specifies test targets for general scanning systems that can be used to evaluate their performance and determine systemicity. The limit of energy. The use of the target is specified in GB/T 20493.2. Electronic imaging office document scanning test target Part 3. Lower resolution application test target

1 Scope

This part of GB/T 20493 specifies a test target for evaluating lower resolution reflective scanning systems over time. Whether to maintain consistent output quality. This section applies to the evaluation of the output quality of black and white, color scanners that scan black and white, color office documents with or without halftones. This section does not apply to scanners that scan transparent or translucent documents.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6161-2008 Description and application of the ISO 2 resolution test chart for microfilming technology (ISO 3334.2006, IDT) GB/T 18405-2008 Characteristics of microfilming ISO characters and ISO 1 test charts and their use (ISO 446. 2004, IDT) GB/T 20225.1-2017 Vocabulary of electronic document management - Part 1. Imaging of electronic documents (ISO 12651-1.2012, IDT) GB/T 20493.1-2006 Test documentation for black and white scanning of electronic imaging office documents - Part 1. Characteristics (ISO 12653-1. 2000, IDT) GB/T 20493.2-2006 Test documents for black and white scanning of electronic imaging office documents - Part 2 (ISO 12653-2.2000, IDT) Photographic density measurement - Part 4. Reflection density geometry (Photography andgraphic technology-Densitymeasurements-Part 4. Geometricconditionsforreflectiondensity)

3 Terms and definitions

The following terms and definitions as defined in GB/T 20225.1-2017 apply to this document. 3.1 Test element testelement The pattern given on the label. Examples. millimeter ruler, grayscale spectrum, circle. 3.2 Continuous tone continuoustone The hue changes in the document expressed in different density regions. 3.3 Lower resolution application lowerresolutionapplication A scanning system configured to scan at a resolution of less than 300 dpi. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 20493.3-2018_English be delivered?

Answer: Upon your order, we will start to translate GB/T 20493.3-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 20493.3-2018_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 20493.3-2018_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.