FR2410304A1 - Trame pour l'inscription d'images en demi-teintes - Google Patents

Trame pour l'inscription d'images en demi-teintes

Info

Publication number
FR2410304A1
FR2410304A1 FR7832021A FR7832021A FR2410304A1 FR 2410304 A1 FR2410304 A1 FR 2410304A1 FR 7832021 A FR7832021 A FR 7832021A FR 7832021 A FR7832021 A FR 7832021A FR 2410304 A1 FR2410304 A1 FR 2410304A1
Authority
FR
France
Prior art keywords
frame
subscribe
tone images
points
lines
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
FR7832021A
Other languages
English (en)
Other versions
FR2410304B1 (fr
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.)
HELL RUDOLF GmbH
Original Assignee
HELL RUDOLF GmbH
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 HELL RUDOLF GmbH filed Critical HELL RUDOLF GmbH
Publication of FR2410304A1 publication Critical patent/FR2410304A1/fr
Application granted granted Critical
Publication of FR2410304B1 publication Critical patent/FR2410304B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4058—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern with details for producing a halftone screen at an oblique angle

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Woven Fabrics (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Character Input (AREA)
  • Color Printing (AREA)

Abstract

A.TRAME POUR L'INSCRIPTION D'IMAGES EN DEMI-TEINTES. B.TRAME CARACTERISEE EN CE QUE LES DIVERS POINTS DE LA TRAME SONT SUBDIVISES EN QUATRE PARTIES, PAR DES LIGNES PERPENDICULAIRES ET PARALLELES A LA DIRECTION D'INSCRIPTION CES LIGNES PASSANT PAR LES CENTRES DES POINTS DES TRAMES, DE FACON A FORMER DES STRUCTURES DE TRAME PARTIELLES, QUADRATIQUES QUI CONTIENNENT DES TACHES DE RECOUVREMENT DANS CHAQUE FOIS DEUX COINS OPPOSES, APPARTENANT A DEUX POINTS DE TRAME DIFFERENTS.
FR7832021A 1977-11-23 1978-11-13 Trame pour l'inscription d'images en demi-teintes Expired FR2410304B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2752164A DE2752164C3 (de) 1977-11-23 1977-11-23 Gerasterte fotomechanische Druckformherstellung

Publications (2)

Publication Number Publication Date
FR2410304A1 true FR2410304A1 (fr) 1979-06-22
FR2410304B1 FR2410304B1 (fr) 1987-02-13

Family

ID=6024358

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7832021A Expired FR2410304B1 (fr) 1977-11-23 1978-11-13 Trame pour l'inscription d'images en demi-teintes

Country Status (6)

Country Link
JP (1) JPS5476301A (fr)
DE (1) DE2752164C3 (fr)
FR (1) FR2410304B1 (fr)
GB (1) GB2012517B (fr)
IT (1) IT1100227B (fr)
NL (1) NL177051C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57155541A (en) * 1981-03-23 1982-09-25 Dainippon Printing Co Ltd Formation of halftone dot for printing
DE4011689A1 (de) * 1990-04-06 1991-10-17 Berthold Ag H Verfahren zur erzeugung von halbton-rasterpunkten
GB2249910B (en) * 1990-11-19 1994-11-30 Le Proizv Ob Poligraficheskogo Method of and apparatus for making a half-tone reproduction of an image

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2084832A5 (fr) * 1970-03-18 1971-12-17 Hell Rudolf

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2084832A5 (fr) * 1970-03-18 1971-12-17 Hell Rudolf

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/74 *

Also Published As

Publication number Publication date
GB2012517A (en) 1979-07-25
NL177051C (nl) 1985-07-16
GB2012517B (en) 1982-04-15
DE2752164C3 (de) 1980-11-20
DE2752164A1 (de) 1979-05-31
IT1100227B (it) 1985-09-28
FR2410304B1 (fr) 1987-02-13
DE2752164B2 (de) 1980-03-20
NL7810880A (nl) 1979-05-28
JPS5723256B2 (fr) 1982-05-18
IT7829781A0 (it) 1978-11-15
JPS5476301A (en) 1979-06-18

Similar Documents

Publication Publication Date Title
BE788560A (fr) Protection contre le halo dans la formation d'images dans des photopolymeres en couches multiples
EP0466377A3 (en) Liquid crystal display for displaying half-tone images
FR2447122A1 (fr) Circuit interpolateur de trames
BE872541A (fr) Procede et dispositif pour reduire l'importance d'erreurs dans des images tomographiques formees a l'aide d'une calculatrice
BE886358A (fr) Pince de serrage pour definir une lumiere d'ecoulement dans des tubes
GB1532937A (en) Frames for photographs and the like
BE874482A (fr) Procede d'utilisation de sulfate ferreux dans la fabrication de bioxyde de titane pigmentaire par la voie sulfurique
ATE129132T1 (de) Multifunktionales rahmenelement.
FR2410304A1 (fr) Trame pour l'inscription d'images en demi-teintes
ES216670U (es) Marco para reproducciones graficas o cuadros.
DE3484648D1 (de) Einrichtung zum vergroessern von illuminierten bildelementen bei kathodenstrahlanzeigeeinheiten.
SE8004841L (sv) Diaram
BE860289A (fr) Diaphragmes pour electrolyse et cellules d'electrolyse comprenant de tels diaphragmes
GB2004453A (en) Improvements in cloches
BE889308A (fr) Elements photosensibles pour reproduction afin de former des images negatives developpables par toner
IT8348468A0 (it) Perfezionamento negli stiratoi con sbarrette ad aghi
IT8348447A0 (it) Perfezionamento negli stiratoi con sbarrette ad aghi
MY105147A (en) Camera view finder
FR2458088A1 (fr) Dispositif de representation d'images intermediaires pour la mise en oeuvre de procedes de contraste dans des microscopes
GB524949A (en) Improvements in frames or holders for transparencies to be viewed or optically projected
BE749439A (fr) Procede pour la formation d'image a points de trame irreguliersen position et en dimension
FR2434226A1 (fr) Machine a coudre a systemes a la cardan modulaires
FR2456341A1 (fr) Trame de contact pour procedes de reproduction graphique
BE748139A (fr) Procede de formation d'une image permanente dans une composition photosensible
Sacktor et al. The singular effect of an internal K+ gradient (K+ i greater than K+ o) on the Na+ gradient (Na+ o greater than NA+ i)-dependent transport of L-glutamate in renal brush border membrane vesicles

Legal Events

Date Code Title Description
CA Change of address
TP Transmission of property
ST Notification of lapse