GB/T 38879-2020 English PDF

US$409.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 38879-2020: Particle - Size analysis - Color image analysis methods
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38879-2020	409	Add to Cart	5 days	Particle - Size analysis - Color image analysis methods	Valid

Similar standards

GB/T 39990   GB/T 39193   GB/T 21649.2   GB/T 45322.2   GB/T 45322.1   

Basic data

Standard ID: GB/T 38879-2020 (GB/T38879-2020)
Description (Translated English): Particle - Size analysis - Color image analysis methods
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A28
Classification of International Standard: 19.120
Word Count Estimation: 22,266
Date of Issue: 2020-06-02
Date of Implementation: 2020-08-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38879-2020: Particle - Size analysis - Color image analysis methods

---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.
Particle - Size analysis - Color image analysis methods ICS 19.120 A28 National Standards of People's Republic of China Particle size analysis color image analysis method 2020-06-02 release 2020-08-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Contents

Foreword Ⅲ Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Sample preparation 3 5 Image acquisition 3 5.1 General 3 5.2 Acquisition 3 6 Image processing and analysis 4 6.1 General 4 6.2 Image preprocessing 4 6.3 Grain image segmentation 4 6.4 Particle size measurement and calculation 5 6.5 Classification of particles 6 7 Calibration and traceability 6 8 Test report 7 Appendix A (Informative) Flowchart of typical steps for particle size analysis based on color images 8 Appendix B (informative appendix) Commonly used color spaces for image processing and the conversion relationships between 9 Appendix C (informative appendix) Basic principles and steps of color image segmentation algorithm based on fuzzy C-means clustering 12 Appendix D (informative appendix) Particle color image segmentation process and result example in CIELAB color space 14 Reference 17

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed and managed by the National Technical Committee for Particle Characterization and Sorting and Screen Standardization (SAC/TC168). This standard was drafted by. Shanghai University of Technology, PetroChina Daqing Oilfield Co., Ltd. Exploration and Development Research Institute, Dandong Baite Instrument Co., Ltd., Beijing Coast Hongmeng Standard Material Technology Co., Ltd., Shenzhen Defang Nanotechnology Co., Ltd., Chinese Academy of Sciences Engineering Research Institute, China Machine Productivity Promotion Center, Beijing Physical and Chemical Analysis and Test Center, Yisiqi (Beijing) Technology Development Co., Ltd. The main drafters of this standard. Zhou Qian, Deng Wenjing, Xu Xiqing, Cai Xiaoshu, Dong Qingyun, Li Zhaojun, Su Mingxu, Li Li, Wang Yuanhang, Gao Yuan, Yu Fang and Yang Zhenghong.

Introduction

The image method has become one of the main methods of particle analysis. Static and dynamic image methods generally perform threshold division based on the grayscale image of the particles. Cut to extract information such as particle size from the binary particle image. Compared with the grayscale image of particles, the color image contains richer colors and patterns Information such as management, which is helpful for the segmentation and identification of particles, so this standard performs particle size analysis on particle color images Provide guidance on the acquisition, processing and application of color images. Particle size analysis color image analysis method

1 Scope

This standard specifies the methods of particle color image collection, processing, and particle size analysis. This standard is applicable to the particle size of particle size analysis equipment such as image method particle size analyzer, microscope, scanner or camera. Determination.

2 Normative references

The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 15445.1 Expression of results of particle size analysis. Part 1.Graphic characterization GB/T 21649.1-2008 Granularity analysis image analysis method Part 1.Static image analysis method

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Color space Three-dimensional space representing colors. Note 1.That is, each color is represented as a point in the three-dimensional coordinate system. The color space is also called a color model, and commonly used color spaces are RGB, CIELAB, HSV and HSI etc. Note 2.Rewrite GB/T 5698-2001, definition 4.57. 3.2 Hue Represents red, yellow, green, blue, purple and other color characteristics. One of the three attributes of color. Note. The important attribute of color, which determines the nature of color, is the perception of a certain color on the surface of the object. [GB/T 5698-2001, definition 5.7] 3.3 Lightness Under the same lighting conditions, the whiteboard is used as the benchmark to give the visual perception characteristics of the object surface. One of the three attributes of color. Note. Rewrite GB/T 5698-2001, definition 5.8. 3.4 Saturation It is used to evaluate the visual attributes of pure color components in the entire vision. [GB/T 5698-2001, definition 5.10] ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 38879-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 38879-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 38879-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 38879-2020_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.