TW328576B - Automatic seal-imprint comparing method and apparatus - Google Patents
Automatic seal-imprint comparing method and apparatusInfo
- Publication number
- TW328576B TW328576B TW085108587A TW85108587A TW328576B TW 328576 B TW328576 B TW 328576B TW 085108587 A TW085108587 A TW 085108587A TW 85108587 A TW85108587 A TW 85108587A TW 328576 B TW328576 B TW 328576B
- Authority
- TW
- Taiwan
- Prior art keywords
- seal imprint
- image
- image data
- tested
- value
- Prior art date
Links
Landscapes
- Collating Specific Patterns (AREA)
Abstract
An automatic seal imprint comparing method includes the following steps: a) getting an image of the seal imprint pattern to be tested; b) converting the image of the seal imprint pattern into two-dimensional image data consisting of 0^s (blank portions of the image) an 1^s (black portions of the image); c) finding the center and the radius of the smallest circle enclosing the seal imprint pattern by using the locating tangent points of the two-imensional image data; d) converting the two-dimensional image data into one-dimensional array data in polar coordinates by using transformation-of-coordinates encoding; e) dividing the encoded image data of the seal imprint to be tested into several blocks, collating each block repeatedly with the reference seal imprint stored in a database, taking the smallest value out of all comparison values to be the final comparison value, and obtaining the comparison result, whether the tested seal imprint is genuine or fake, by comparing the final comparison value with a default reference value; and f) returning the comparison result to a display device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW085108587A TW328576B (en) | 1996-07-16 | 1996-07-16 | Automatic seal-imprint comparing method and apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW085108587A TW328576B (en) | 1996-07-16 | 1996-07-16 | Automatic seal-imprint comparing method and apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
TW328576B true TW328576B (en) | 1998-03-21 |
Family
ID=58262431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW085108587A TW328576B (en) | 1996-07-16 | 1996-07-16 | Automatic seal-imprint comparing method and apparatus |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW328576B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7720307B2 (en) | 2003-10-07 | 2010-05-18 | Sony Corporation | Image matching method, program, and image matching system |
TWI410654B (en) * | 2009-07-30 | 2013-10-01 | Hon Tech Inc | Dynamic image detection device and detection method of panel IC |
TWI478004B (en) * | 2013-09-30 | 2015-03-21 | Univ Chaoyang Technology | Seal confidential check system |
CN106651387A (en) * | 2015-10-30 | 2017-05-10 | 四川谦泰仁投资管理有限公司 | Method for supplying multi-bit random state code to commodity |
TWI739387B (en) * | 2020-04-10 | 2021-09-11 | 彰化商業銀行股份有限公司 | Seal identification system and method thereof |
-
1996
- 1996-07-16 TW TW085108587A patent/TW328576B/en active
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7720307B2 (en) | 2003-10-07 | 2010-05-18 | Sony Corporation | Image matching method, program, and image matching system |
US7860279B2 (en) | 2003-10-07 | 2010-12-28 | Sony Corporation | Image matching method, program, and image matching system |
TWI410654B (en) * | 2009-07-30 | 2013-10-01 | Hon Tech Inc | Dynamic image detection device and detection method of panel IC |
TWI478004B (en) * | 2013-09-30 | 2015-03-21 | Univ Chaoyang Technology | Seal confidential check system |
CN106651387A (en) * | 2015-10-30 | 2017-05-10 | 四川谦泰仁投资管理有限公司 | Method for supplying multi-bit random state code to commodity |
CN106651387B (en) * | 2015-10-30 | 2020-06-19 | 四川谦泰仁投资管理有限公司 | Method for providing multi-bit random state code for commodity |
TWI739387B (en) * | 2020-04-10 | 2021-09-11 | 彰化商業銀行股份有限公司 | Seal identification system and method thereof |
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