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Method and apparatus for enlarging or reducing an image on the basis of precalculated reference pel contribution rate da 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04N-001/393
  • H04N-001/387
  • G06G-007/30
  • G06K-009/42
출원번호 US-0855559 (1986-04-25)
우선권정보 JP-0139267 (1985-06-27)
발명자 / 주소
  • Suzuki Naoshi (Fujisawa JPX) Yanagisawa Hiroshi (Yokohama JPX) Yokemura Taketoshi (Yokohama JPX)
출원인 / 주소
  • International Business Machines Corporation (Armonk NY 02)
인용정보 피인용 횟수 : 34  인용 특허 : 0

초록

A method and apparatus for reducing or enlarging an image. More specifically, this invention can increase or decrease the magnification ratio of an image even while scanning each line. This invention involves converting a first image with a first pel density to a second image with a second pel densi

대표청구항

An image conversion apparatus, in which, when a first image with a first pel density is converted to a second image with a second pel density, the intensity P of a new pel (estimated pel) at a point p of said second image is represented by [Figure] when m is a number of reference pels of said first

이 특허를 인용한 특허 (34)

  1. Juha Pekka Karjalainen FI, Apparatus and method for displaying zoomed version of stored image by displaying and shifting based on pixel overlap.
  2. Patel, Alpesh; Koehn, Bradley E., Automatic scaling of display for image management system.
  3. Sakamoto Ken (Kyoto JPX) Henmi Hidemi (Ootsu JPX) Kondo Tomoji (Osaka JPX) Shimbo Hiroyasu (Osaka JPX) Fukuda Shin (Osaka JPX), Character and graphics data display apparatus having data compression capability.
  4. Beato Louis J. (Rochester NY), Character normalization using an elliptical sampling window for optical character recognition.
  5. Littooy, Hans; Pugliese, Vincent; Emmerson, Michael, Compliance manager.
  6. Carter, Philip Scot; Richardson, William Keith; True, Jason Carl, Determining toner usage.
  7. Glazer Frank C. (Wellesley MA) Trimper John K. (Ayer MA), Fast bitonal to gray scale image scaling.
  8. Mosier Donald E. (Cedar Rapids IA), Graphic dot flare apparatus.
  9. Huonder Russell J., Image convolution using pre-calculated lookup tables.
  10. Tanaka Hiroshi (Iwatsuki JPX), Image processing apparatus.
  11. Abe Yoshinori (Tokyo JPX) Matsunawa Masahiko (Tokyo JPX), Image processing apparatus capable of enlarging/reducing apparatus.
  12. Abe Yoshinori (Hachioji JPX) Matsunawa Masahiko (Hachioji JPX) Yamamoto Hiroyuki (Hachioji JPX), Image processing system with capability of enlarging and reducing operations.
  13. Miyake Nobutaka,JPX, Image processing with low-resolution to high-resolution conversion.
  14. Tamotsu Akeyama JP; Yoshinori Amano JP, Image size reducing method and image size reducing apparatus using the same.
  15. Ohtsuki,Hideki, Magnification alteration processing method which accords with types of image data and image processing apparatus which uses the method.
  16. Yen Jonathan ; Chiarabini Luca,ESX, Method and apparatus for complexity reduction on two-dimensional convolutions for image processing.
  17. Kotha Sridhar ; Bril Vlad ; Eglit Alexander J. ; Han Robin Sungsoo, Method and apparatus for expanding graphics images for LCD panels.
  18. Parke Frederic I. (Glen Cove NY), Method and apparatus for generating animated images.
  19. Curry,Donald J.; Nafarieh,Asghar; Kletter,Doron, Method and apparatus for reduced size image.
  20. Kumagai Ryohei (Tokyo JPX), Method and system for generating a density concurrent matrix.
  21. Hanna Stephen Dale, Method and system for the modification of the timing of a plurality of PEL clocks in an electrophotographic device.
  22. Zhao Albert Z.,CAX, Method for color image scaling and other geometrical transformations.
  23. Akiyama Kazuya (Kyoto JPX), Method of and apparatus for generating look-up table data.
  24. Takagi Makoto (Kawasaki JPX) Fujii Norio (Urawa JPX) Fujimori Yoshihiko (Tokyo JPX), Pattern inspecting apparatus.
  25. Murayama Noboru (Machida JPX) Suzuki Koichi (Yokohama JPX), Picture element data generating method.
  26. Yamaguchi Hideya (Hashima JPX) Hayasaki Hiroyuki (Ogaki JPX) Kawakami Masamichi (Hashima JPX) Houjiyou Yuji (Hashima JPX) Hobo Yoshihiro (Hashima JPX) Arimatsu Youichirou (Anpachi JPX) Tsuji Yasunori, Printing apparatus and facsimile equipment.
  27. Souviron Marc (Saint Sernin sur Rance FRX), Process and system of image processing.
  28. Martin Russel A. ; Tan Ken-Sue, Scaling multi-dimensional signals using variable weighting factors.
  29. Cooper, Carl, Spatial scan replication circuit.
  30. Cooper, J. Carl, Spatial scan replication circuit.
  31. Borghesi Nancy ; Chen Jeff ; Frankel Charles ; Ho Margaret ; Mandler Alan ; Ramamurthy Githesh ; Stephen Kelly ; Wilharm Kathy, System and method for managing insurance claim processing.
  32. Tutt Timothy T. (Skokie IL) Westmeyer Mark (Elmhurst IL) Khutoryansky (Glenview IL), System for selective scaling of digital video images.
  33. Sathyanarayana,Shashidhar, Systems and methods for transforming video images using fast visual interpolation.
  34. Abe Yoshinori (Hino JPX) Matsunawa Masahiko (Hino JPX), Technique for interpolating a color image for image enlargement or reduction based on look-up tables stored in memory.
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