TW328576B - Automatic seal-imprint comparing method and apparatus - Google Patents

Automatic seal-imprint comparing method and apparatus

Info

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
Application number
TW085108587A
Other languages
Chinese (zh)
Inventor
Yeong-Shenq Chen
Original Assignee
Chen Bor Ning
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chen Bor Ning filed Critical Chen Bor Ning
Priority to TW085108587A priority Critical patent/TW328576B/en
Application granted granted Critical
Publication of TW328576B publication Critical patent/TW328576B/en

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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.
TW085108587A 1996-07-16 1996-07-16 Automatic seal-imprint comparing method and apparatus TW328576B (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (7)

* Cited by examiner, † Cited by third party
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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