CN109145907B - 基于常用字字频统计的文本图像倒置检测方法及装置 - Google Patents
基于常用字字频统计的文本图像倒置检测方法及装置 Download PDFInfo
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- CN109145907B CN109145907B CN201811059509.8A CN201811059509A CN109145907B CN 109145907 B CN109145907 B CN 109145907B CN 201811059509 A CN201811059509 A CN 201811059509A CN 109145907 B CN109145907 B CN 109145907B
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 42
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- 238000012545 processing Methods 0.000 claims description 35
- 238000004364 calculation method Methods 0.000 claims description 5
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/24—Aligning, centring, orientation detection or correction of the image
- G06V10/243—Aligning, centring, orientation detection or correction of the image by compensating for image skew or non-uniform image deformations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/56—Extraction of image or video features relating to colour
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
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CN110647882A (zh) * | 2019-09-20 | 2020-01-03 | 上海眼控科技股份有限公司 | 图像校正方法、装置、设备及存储介质 |
US11238618B2 (en) | 2019-11-26 | 2022-02-01 | International Business Machines Corporation | Image recognition |
CN112818983A (zh) * | 2021-01-22 | 2021-05-18 | 常州友志自动化科技有限公司 | 一种利用图片相识度判断字符倒置的方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101814066A (zh) * | 2009-02-23 | 2010-08-25 | 富士通株式会社 | 文本阅读难度判断设备及其方法 |
CN104142918A (zh) * | 2014-07-31 | 2014-11-12 | 天津大学 | 基于tf-idf特征的短文本聚类以及热点主题提取方法 |
CN104298982A (zh) * | 2013-07-16 | 2015-01-21 | 深圳市腾讯计算机***有限公司 | 一种文字识别方法及装置 |
CN106156766A (zh) * | 2015-03-25 | 2016-11-23 | 阿里巴巴集团控股有限公司 | 文本行分类器的生成方法及装置 |
CN106960208A (zh) * | 2017-03-28 | 2017-07-18 | 哈尔滨工业大学 | 一种仪表液晶数字自动切分和识别的方法及*** |
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TWI318058B (en) * | 2005-01-26 | 2009-12-01 | Qisda Corp | Message compression method, system and machine-readable storage medium |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101814066A (zh) * | 2009-02-23 | 2010-08-25 | 富士通株式会社 | 文本阅读难度判断设备及其方法 |
CN104298982A (zh) * | 2013-07-16 | 2015-01-21 | 深圳市腾讯计算机***有限公司 | 一种文字识别方法及装置 |
CN104142918A (zh) * | 2014-07-31 | 2014-11-12 | 天津大学 | 基于tf-idf特征的短文本聚类以及热点主题提取方法 |
CN106156766A (zh) * | 2015-03-25 | 2016-11-23 | 阿里巴巴集团控股有限公司 | 文本行分类器的生成方法及装置 |
CN106960208A (zh) * | 2017-03-28 | 2017-07-18 | 哈尔滨工业大学 | 一种仪表液晶数字自动切分和识别的方法及*** |
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