CA1207373A - Commande de niveau d'exposition dynamique pour tube cathodique source de lumiere - Google Patents
Commande de niveau d'exposition dynamique pour tube cathodique source de lumiereInfo
- Publication number
- CA1207373A CA1207373A CA000445041A CA445041A CA1207373A CA 1207373 A CA1207373 A CA 1207373A CA 000445041 A CA000445041 A CA 000445041A CA 445041 A CA445041 A CA 445041A CA 1207373 A CA1207373 A CA 1207373A
- Authority
- CA
- Canada
- Prior art keywords
- exposure
- control means
- prescan
- density
- contrast
- 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.)
- Expired
Links
Landscapes
- Projection-Type Copiers In General (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000445041A CA1207373A (fr) | 1981-06-05 | 1984-01-10 | Commande de niveau d'exposition dynamique pour tube cathodique source de lumiere |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US270,758 | 1981-06-05 | ||
US06/270,758 US4344699A (en) | 1981-06-05 | 1981-06-05 | Exposure and contrast determination by prescanning in electronic photoprinting systems |
CA000392563A CA1177411A (fr) | 1981-06-05 | 1981-12-17 | Dispositif de controle du niveau d'exposition et de la correction du contraste par balayage preliminaire pour systemes de reprographie electronique |
CA000445041A CA1207373A (fr) | 1981-06-05 | 1984-01-10 | Commande de niveau d'exposition dynamique pour tube cathodique source de lumiere |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000392563A Division CA1177411A (fr) | 1981-06-05 | 1981-12-17 | Dispositif de controle du niveau d'exposition et de la correction du contraste par balayage preliminaire pour systemes de reprographie electronique |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1207373A true CA1207373A (fr) | 1986-07-08 |
Family
ID=25669512
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000445041A Expired CA1207373A (fr) | 1981-06-05 | 1984-01-10 | Commande de niveau d'exposition dynamique pour tube cathodique source de lumiere |
CA000445042A Expired CA1207374A (fr) | 1981-06-05 | 1984-01-10 | Dispositif d'impression photgraphique par contact |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000445042A Expired CA1207374A (fr) | 1981-06-05 | 1984-01-10 | Dispositif d'impression photgraphique par contact |
Country Status (1)
Country | Link |
---|---|
CA (2) | CA1207373A (fr) |
-
1984
- 1984-01-10 CA CA000445041A patent/CA1207373A/fr not_active Expired
- 1984-01-10 CA CA000445042A patent/CA1207374A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1207374A (fr) | 1986-07-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4344699A (en) | Exposure and contrast determination by prescanning in electronic photoprinting systems | |
US4394089A (en) | Color photoprinting with a scanning memory mask | |
US4265532A (en) | Photo printing by intensity and velocity modulation | |
US5528339A (en) | Color image reproduction of scenes with color enhancement and preferential tone mapping | |
US3790275A (en) | Method and apparatus for sensing radiation derived from information bearing media | |
EP0221131B1 (fr) | Procede de traitement d'images numeriques bimodales | |
EP0221133B1 (fr) | Procede pour detecter et imprimer des images photographiques en couleur exposees par un agent eclairant a bande spectrale etroite | |
US4168121A (en) | Automatic snow/beach correction for photographic printer | |
US3400632A (en) | Method of photographic reproduction and apparatus therefor | |
EP0221111B1 (fr) | Procede de correction des couleurs d'images numeriques | |
US5703700A (en) | Method of enhancing a print of a transparency | |
US3455632A (en) | Method of classifying photographic material | |
JPH0616152B2 (ja) | カラーネガ原板からカラープリントを作成するための方法 | |
US3041932A (en) | Photographic colour reproduction apparatus | |
JPH02118642A (ja) | 写真的に作られたマスクを使用する乾式ドツトエツチングによる色修正方法 | |
CA1230291A (fr) | Analyse automatique des couleurs basee sur le rapport minimum/maximum du niveau video | |
CA1207373A (fr) | Commande de niveau d'exposition dynamique pour tube cathodique source de lumiere | |
US5003381A (en) | Method and apparatus for point-by-point reproduction of an original | |
US2921512A (en) | Photographic printing | |
US2968214A (en) | Modification of the light response from a coloured original | |
US2985086A (en) | Photographic printing | |
US3668311A (en) | Method and system for simulating halftones | |
US3019703A (en) | Photographic colour reproduction apparatus | |
JPS5910943A (ja) | カラ−写真焼付装置 | |
US5081486A (en) | Process for the preparation of photographic color copies from copy masters |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |