JPS5769372A - Compensator for inclination of document - Google Patents

Compensator for inclination of document

Info

Publication number
JPS5769372A
JPS5769372A JP55143238A JP14323880A JPS5769372A JP S5769372 A JPS5769372 A JP S5769372A JP 55143238 A JP55143238 A JP 55143238A JP 14323880 A JP14323880 A JP 14323880A JP S5769372 A JPS5769372 A JP S5769372A
Authority
JP
Japan
Prior art keywords
register
absolute value
value
differential absolute
sum
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP55143238A
Other languages
Japanese (ja)
Other versions
JPS6252337B2 (en
Inventor
Teruo Akiyama
Isao Masuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP55143238A priority Critical patent/JPS5769372A/en
Publication of JPS5769372A publication Critical patent/JPS5769372A/en
Publication of JPS6252337B2 publication Critical patent/JPS6252337B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)

Abstract

PURPOSE:To realize the accurate compensation for the inclination of a document, by extracting the differential absolute value of the cumulative value on the scanning lines adjacent to each other through a differential absolute value extracting part and then extracting the sum of the differential absolute value through a differential absolute value sum extracting part respectively to obtain the difference of sum. CONSTITUTION:The quantization density value of a picture element obtained through a raster scan is added to a register 11. When a piece of raster scan is over, the absolure value of differential is obtained through a differential absolute value circuit 12 between the register 11 and a buffer memory 13 which holds the density cumulative value preceding by a scan. This absolute value is added to a register 14, and at the same time the contents of the register 11 is written into the memory 13 to clear the register 11. When the raster scan is over for the entire screen, the contents of the register 14 is stored in a memory 15 to clear the register 14. Based on the contents of the memory 15, an angle compensator 16 gives the rotation to the actual screen so as to obtain the maximum density cumulative value differential absolute value sum. Thus the angle is compensated.
JP55143238A 1980-10-14 1980-10-14 Compensator for inclination of document Granted JPS5769372A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55143238A JPS5769372A (en) 1980-10-14 1980-10-14 Compensator for inclination of document

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55143238A JPS5769372A (en) 1980-10-14 1980-10-14 Compensator for inclination of document

Publications (2)

Publication Number Publication Date
JPS5769372A true JPS5769372A (en) 1982-04-28
JPS6252337B2 JPS6252337B2 (en) 1987-11-05

Family

ID=15334103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55143238A Granted JPS5769372A (en) 1980-10-14 1980-10-14 Compensator for inclination of document

Country Status (1)

Country Link
JP (1) JPS5769372A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7139441B2 (en) 2002-11-13 2006-11-21 Minolta Co., Ltd. Image processing device performing inclination correcting processing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01143929A (en) * 1987-12-01 1989-06-06 Kayaba Ind Co Ltd Leak detecting method using air bubble signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7139441B2 (en) 2002-11-13 2006-11-21 Minolta Co., Ltd. Image processing device performing inclination correcting processing

Also Published As

Publication number Publication date
JPS6252337B2 (en) 1987-11-05

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