JPS5967527A - Control device for exposure for photographic printing - Google Patents
Control device for exposure for photographic printingInfo
- Publication number
- JPS5967527A JPS5967527A JP17732082A JP17732082A JPS5967527A JP S5967527 A JPS5967527 A JP S5967527A JP 17732082 A JP17732082 A JP 17732082A JP 17732082 A JP17732082 A JP 17732082A JP S5967527 A JPS5967527 A JP S5967527A
- Authority
- JP
- Japan
- Prior art keywords
- exposure
- data
- output
- algorithm
- photographic printing
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
- G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Exposure In Printing And Copying (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は写真焼付露光量制御装置に関し、特に学習機能
を有する写真焼付露光量制御装置ｉ￥（以下、単に「露
光量制御装置」という。）に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photographic printing exposure control device, and more particularly to a photographic printing exposure control device i (hereinafter simply referred to as "exposure control device") having a learning function.
露光量制御装置はネガフィルム、ポジフィルム等の焼付
に供する原画フィルム上の写貞ｉｉ！ｉｉ像から光電変
換手段等により種々の特性値を抽出し、該特性値を用い
て予め与えられたアルゴリズムに基づいて露光量を制御
するものである。説明を簡単にするために、以下、ネガ
フィルム（以下、単に「ネガ」という。）からの写真焼
付の場合を例に挙げる。The exposure amount control device is used to control the exposure of the original film used for printing negative film, positive film, etc. Various characteristic values are extracted from the ii image by a photoelectric conversion means or the like, and the exposure amount is controlled using the characteristic values based on a predetermined algorithm. To simplify the explanation, the case of printing a photograph from a negative film (hereinafter simply referred to as "negative") will be described below as an example.
写真焼付装置に組込まれている露光量制御装置は、その
製造工程において、いわゆる標準ネガにより条件設定が
行われる。しかしながら、一般ユーザの撮影する被写体
は、地域により、あるいは季節等により大きく変動する
ことがあり、この他にも、例えば、ネガの処理条件の変
動等、写真焼付装置に供給されるネガの平均的特性値を
変化させる要因は少なくない。従って、ト］ぢ記標準ネ
ガにより設定された露光鍵制御条件は必ずしもユーザ・
ネガの実状には適合しないという問題があつム従来、こ
のような問題に対しては、定期的に標準ネガを処理して
、露光量制御装置の条件設定に、前記標準ネガの処理結
果に基づく補正を手作業で加えていたが、これは一部の
条件の修正にしか効果がないものであった。In the manufacturing process of the exposure amount control device incorporated in a photographic printing apparatus, conditions are set using a so-called standard negative. However, the subjects photographed by general users may vary greatly depending on the region or season, and there are also other factors, such as variations in negative processing conditions, that may cause the average There are many factors that change characteristic values. Therefore, the exposure key control conditions set by the standard negative described above are not necessarily the same as those set by the user.
Conventionally, to solve this problem, a standard negative is periodically processed and the exposure control device conditions are set based on the processing results of the standard negative. Corrections were added manually, but this was only effective in correcting some conditions.
本発明は上記事情に艦みてなされたもので、その目的と
するところは、従来の露光量制御装置における上述の如
き問題を解消し、常に現実のユーザ・ネガに適合する如
く、露光量決定のためのアルゴリズムを修正するような
学習機能を有する屈光鼠制御装置を提供することにある
。The present invention has been made in view of the above circumstances, and its purpose is to solve the above-mentioned problems in conventional exposure amount control devices, and to enable exposure amount determination to always be adapted to actual user negatives. It is an object of the present invention to provide a photoreflective mouse control device having a learning function for modifying an algorithm.
本発明の上記目的は、焼付に供する原画フィルム上の写
真画像から光電変換手段等により種々の特性値を抽出し
、該特性値を用いて予め与えられたアルゴリズムに基づ
いて露光量を制御する露光量制御装置において、前記原
画フィルムの特性値とそれに基づいて決定された露光量
データとを記憶する手段と、該露光量データの修正を行
う手段および該修正手段の出力により前記露光量を決定
するためのアルゴリズムを作り直す手段を備えたことを
特徴とする露光量制御装置によって達成される。The above-mentioned object of the present invention is to provide an exposure method in which various characteristic values are extracted from a photographic image on an original film to be printed using a photoelectric conversion means, and the exposure amount is controlled based on a predetermined algorithm using the characteristic values. The amount control device includes means for storing characteristic values of the original film and exposure data determined based on the characteristic values, means for correcting the exposure data, and determining the exposure based on the output of the correcting means. This is achieved by an exposure amount control device characterized in that it is equipped with a means for re-creating an algorithm for.
以下、本発明の実施例を図面に基づいて詳細に説明する
。Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は本発明の一実施例を示す露光量制御装置の機能
ブロック図である。図において、ｌはネガ上の各点およ
びネガの全画面からの透過光量信号を濃度信号に変換す
るための光電変換手段、２は該光電変換手段ｌの出力か
ら、例えば最高濃度。FIG. 1 is a functional block diagram of an exposure amount control device showing one embodiment of the present invention. In the figure, 1 is a photoelectric conversion means for converting transmitted light quantity signals from each point on the negative and the entire screen of the negative into a density signal, and 2 is the maximum density, for example, from the output of the photoelectric conversion means 1.
最低濃度（以下、それぞれ［Ｄｍａｘ Ｊ、 ［Ｄｍｉ
ｎ Ｊという。）等を抽出する特性値抽出手段、３は該
特性値抽出手段２の出力に基づき、予め定められたアル
ゴリズムを用いて、露光量を決定する露光量演算手段、
そして牛は該露光量演算手段３の出力に従って印画紙等
への焼付露光を制御する露光制御部である。Minimum concentration (hereinafter, [Dmax J, [Dmi
It's called nJ. ) etc.; 3 is an exposure calculation means for determining the exposure amount based on the output of the characteristic value extraction means 2 using a predetermined algorithm;
The reference character is an exposure control section that controls printing exposure on photographic paper or the like in accordance with the output of the exposure amount calculation means 3.
また、５は前記露光量演算手段３の出力データを記憶す
るデータ記憶手段、６は前記露光制御部ヰによる制御の
下に行われた焼付露光およびそれに引続き行われた写真
処理によって得られた写真プリントを、観察者が観察し
て必要に応じて決定する露光量修正データの入力手段、
そして、７は該修正データに基づいて修正された前記デ
ータ記憶手段５の内容により、前記露光量演算手段３内
のは光量決定のためのアルゴリズムを修正する演算変更
手段である。Further, 5 is a data storage means for storing output data of the exposure amount calculation means 3, and 6 is a photograph obtained by printing exposure performed under the control of the exposure control section 3 and subsequent photographic processing. means for inputting exposure correction data, which is determined as necessary by an observer observing the print;
Reference numeral 7 denotes calculation changing means for modifying the algorithm for determining the light amount in the exposure amount calculation means 3 based on the contents of the data storage means 5 modified based on the modified data.
データ記憶手段５は、例えば露光量データが一定数に達
した時点で、前記演算変更手段７に信号を発する。演算
変更手段７はこれにより、観察者により必要な修正を施
されたデータを含む前記一定数のデータを用いて、前記
露光量演算手段３内のアルゴリズムを変更する処理を行
う。該アルゴリズム変更処理は、電子計算機を用いる最
適化制御を応用するものであり、以下、その具体例を示
す。The data storage means 5 issues a signal to the arithmetic change means 7, for example, when the exposure amount data reaches a certain number. The calculation change means 7 thereby performs a process of changing the algorithm in the exposure amount calculation means 3 using the fixed number of data including data that has been corrected as necessary by the observer. The algorithm changing process applies optimization control using an electronic computer, and a specific example thereof will be shown below.
例えば、今１０００個のデータを用いるものとし、露光
量演算のアルゴリズムを次のようなものとする。For example, suppose that 1000 pieces of data are used and the algorithm for calculating the exposure amount is as follows.
Ｒ＝ Ｐ−Ｄ＋ｎａｘ＋Ｑ”Ｄｍ１ｎ＋Ａ
・” （１）ここで、Ｒは露光量、Ｄｍａｘ ＋
Ｄｍｉｎは前記最大。R= P−D+nax+Q”Dm1n+A
・” (1) Here, R is the exposure amount, Dmax +
Dmin is the maximum value.
最小濃度、ＰＩＱおよびＡは係数である。Minimum concentration, PIQ and A are coefficients.
また、実際の焼付結果から得られた修正値を含む臓光量
目標値をＺとし、いわゆる最小２乗法を用いて前記係数
Ｐ、ＱおよびＡを求めるものとする。Further, it is assumed that Z is the internal light amount target value including the correction value obtained from the actual printing results, and the coefficients P, Q, and A are determined using the so-called least squares method.
Ｈ−（Ｚ、−Ｒ１）２＋ （Ｚ２−Ｒ２）２＋・・・・
。H-(Z,-R1)2+ (Z2-R2)2+...
.
（Ｚ −ｎ ）２・・・・・■
１０００、 １０００
とおき、
ａＨ＆ＨａＨ
ａｐ ’→・頁−〇・π″″Ｏ
とすれば、
Ｈ−（Ｚｌ”＋Ｚ２”＋・−＋Ｚ”、ｏｃＫｌ）＋（Ｒ
１”＋Ｔ（２”＋・−・十Ｒ”、。□。’） −２（Ｒ
，Ｚ１＋Ｒ２Ｚ２＋・・・＋Ｒ１ｏＯＯＺ１ｏｏｏ）・
・・・・（３）より、
ａＨ
−Ｈ−に１．Ｐ十に、２Ｑ 十に１３Ａ十に、４−０θ
Ｈ
、、−−に３１ｐ−ｉ−に３□ｑ ＋ Ｋ３．Ａ＋に３
． 、０ここで、Ｋ、 （ｉ−１〜３． ｊ−１〜４）
は定数である。(Z -n)2...■ 1000, 1000, aH&HaH ap '→・page-〇・π″″O, then H-(Zl”+Z2”+・-+Z”, ocKl) +(R
1"+T(2"+・-・10R",.□.') -2(R
,Z1+R2Z2+...+R1oOOZ1ooo)・
...From (3), 1. for aH -H-. P ten, 2Q ten, 13A ten, 4-0θ
H,, to 31p-i- to 3□q + K3. 3 to A+
．． , 0 where K, (i-1~3. j-1~4)
is a constant.
が得られるので、これから、前記式（１）の係数Ｐ。Therefore, from this, the coefficient P of the above equation (1).
ＱおよびＡを一義的に決定することができる。Q and A can be uniquely determined.
前記露光量演算手段３内のアルゴリズムは上記実施例に
示したものに限るものではなく、種々の形式のものを用
いることができることは言うまでもない。また、最適化
制御は上記実施例に示した最小２乗法に限らず、他の各
種の手法を応用することができることも官うまでもない
。例えば、失敗したパターンを記憶しておぎ、そのパタ
ーンが再び現われた場合には演算結果に補正を加えるよ
うにしても良い。この場合のパターンは画像そのもので
もそれから抽出された特性値でも良い。この場合には、
エラーが発生するごとにすぐに演算が変更されることに
なる。It goes without saying that the algorithm in the exposure amount calculation means 3 is not limited to that shown in the above embodiment, and that various types of algorithms can be used. Furthermore, it goes without saying that the optimization control is not limited to the least squares method shown in the above embodiments, but that various other methods can be applied. For example, a failed pattern may be stored, and if the pattern appears again, the calculation results may be corrected. The pattern in this case may be the image itself or characteristic values extracted from it. In this case,
Whenever an error occurs, the calculation will be changed immediately.
更に、本発明においては、露光量決定のためのアルゴリ
ズムを変更することにしているが、ここでいうアルゴリ
ズムの中には、いわゆるスロープコントロールの最適化
およびコレクションファクターの最適化等も含まれるこ
とは言うまでもない。Furthermore, in the present invention, the algorithm for determining the exposure amount is changed, but the algorithm mentioned here does not include optimization of so-called slope control, optimization of correction factor, etc. Needless to say.
これによれば、ユーザーの行う写真焼付装置の管理が着
しく簡牟になるという効果がある。According to this, there is an effect that the user's management of the photo printing apparatus is considerably simplified.
なお、前記実施例においては露光量修正データ入力手段
６に入力する修正データを露光制御部４の制御の下に行
われた焼付露光およびそれに引続き行われた写真処理に
よって得られた写真プリントを観察して決定する例を示
したが、この修正データは熟練した観察者によるネガフ
ィルム等の観察結果、またはこれのＣＲＴ表示（必要に
より反転しても良い）の観察結果によっても良いことも
言うまでもない。In the above embodiment, the correction data input to the exposure correction data input means 6 is used to observe a photographic print obtained by printing exposure performed under the control of the exposure control section 4 and subsequent photographic processing. Although we have shown an example in which this correction data is determined based on the observation result of a negative film, etc., by an experienced observer, or the observation result of this CRT display (which may be reversed if necessary), it goes without saying that this correction data may also be determined based on the observation result of a negative film, etc., by an experienced observer. .
以上述べた如く、本発明によねに′、ネガフィルム等の
焼付に供する原画フィルム上の写真画像がら光電変換手
段等により柚々の特性値を抽出し、該特性値を用いて予
め与えられたアルゴリズムに基づいて露光量を制御する
露光量制御装置において、前−ｈＱ １％を画フィルム
の特性値とそれに基づいて決定された露光ｈ１データと
を記νする手段と、前記露光量データに基づいて行った
写真焼付の結果あるいは観察者による前記原画フィルム
の観察結果により該ボ光蛾データの修正を行う手段およ
び該修正手段の出力により前記露光量を決定するための
アルゴリズムを作り直す手段をω；ｆえたので、常に現
実のユーザ・ネガに適合する如く露光量制御のためのア
ルゴリズムを修正した状態に置くことが可能になると同
時に、使用して行くに従って適正露光量が得られる割合
が向上する露光量制御装置を実現できるという顕著な効
果を奏するものである。As described above, according to the present invention, the characteristic values of citrus are extracted from the photographic image on the original film used for printing, such as negative film, by photoelectric conversion means, and the characteristic values are used to extract the characteristic values given in advance. In an exposure amount control device that controls the exposure amount based on an algorithm, means for recording the characteristic value of the image film and the exposure h1 data determined based on the characteristic value of the image film, and the exposure amount data based on the exposure amount data. means for modifying the blur data based on the results of photographic printing performed or the results of observation of the original film by an observer; and means for re-creating the algorithm for determining the exposure amount based on the output of the modifying means; This makes it possible to constantly modify the algorithm for exposure control to match the actual user negative, and at the same time improve the rate at which a proper exposure is obtained as the exposure is used. This has the remarkable effect of realizing a quantity control device.
第１図は本発明の一実施側である露光量制御装置の機能
ブロック図である。
１：光電変換手段、２：特性値抽出手段、３：露光量演
算手段、＋：＊光制御部、５：データ記憶手段、６：修
正データ入力手段、９：演算変更手段。
特許出願人 富士写真フィルム味式会社代 理
人 弁理士 磯 村 雅 俊第 １
図
１ ２ ３ ４７
５ ６FIG. 1 is a functional block diagram of an exposure amount control device which is one embodiment of the present invention. 1: Photoelectric conversion means, 2: Characteristic value extraction means, 3: Exposure amount calculation means, +: *Light control section, 5: Data storage means, 6: Correction data input means, 9: Calculation change means. Patent applicant Fuji Photo Film Aji Shiki Company Representative
Patent Attorney Masatoshi Isomura 1st
Figure 1 2 3 47
5 6
Claims (1)
段等により種々の特性値を抽出し、該特性値を用いて予
め与えられたアルゴリズムに基づいて写真焼付露光量を
制御する写真焼付露光量制御装置において、前記原画フ
ィルムの特性値とそれに基づいて決定された写真焼付露
光量データとを記憶する手段と、該写真焼付露光量デー
タの修正を行う手段および該修正手段の出力により前記
写真焼付露光量を決定するためのアルゴリズムを作り直
す手段を備えたことを特徴とする写真焼付露光量制御装
置。A photographic printing exposure amount control device that extracts various characteristic values from a photographic image on an original film to be subjected to printing using a photoelectric conversion means, etc., and controls the photographic printing exposure amount based on a predetermined algorithm using the characteristic values. means for storing characteristic values of the original film and photographic printing exposure data determined based thereon, means for correcting the photographic printing exposure data, and adjusting the photographic printing exposure by the output of the correcting means. What is claimed is: 1. A photographic printing exposure control device characterized by comprising means for re-creating an algorithm for determining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17732082A JPS5967527A (en) | 1982-10-08 | 1982-10-08 | Control device for exposure for photographic printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17732082A JPS5967527A (en) | 1982-10-08 | 1982-10-08 | Control device for exposure for photographic printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5967527A true JPS5967527A (en) | 1984-04-17 |
Family
ID=16028914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17732082A Pending JPS5967527A (en) | 1982-10-08 | 1982-10-08 | Control device for exposure for photographic printing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5967527A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6186518U (en) * | 1984-11-14 | 1986-06-06 | ||
| JPS6242145A (en) * | 1985-08-20 | 1987-02-24 | Canon Inc | Information recording device |
| JPS6380242A (en) * | 1987-08-26 | 1988-04-11 | Fuji Photo Film Co Ltd | Photograph printing machine |
| JPH03144435A (en) * | 1989-10-30 | 1991-06-19 | Fuji Photo Film Co Ltd | Color image forming device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51138435A (en) * | 1975-05-27 | 1976-11-30 | Fuji Photo Film Co Ltd | Method of controlling exposure amount of printing |
| JPS5662243A (en) * | 1979-10-25 | 1981-05-28 | Fuji Photo Film Co Ltd | Color film checking device |
-
1982
- 1982-10-08 JP JP17732082A patent/JPS5967527A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51138435A (en) * | 1975-05-27 | 1976-11-30 | Fuji Photo Film Co Ltd | Method of controlling exposure amount of printing |
| JPS5662243A (en) * | 1979-10-25 | 1981-05-28 | Fuji Photo Film Co Ltd | Color film checking device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6186518U (en) * | 1984-11-14 | 1986-06-06 | ||
| JPH034741Y2 (en) * | 1984-11-14 | 1991-02-07 | ||
| JPS6242145A (en) * | 1985-08-20 | 1987-02-24 | Canon Inc | Information recording device |
| JPS6380242A (en) * | 1987-08-26 | 1988-04-11 | Fuji Photo Film Co Ltd | Photograph printing machine |
| JPH0512694B2 (en) * | 1987-08-26 | 1993-02-18 | Fuji Photo Film Co Ltd | |
| JPH03144435A (en) * | 1989-10-30 | 1991-06-19 | Fuji Photo Film Co Ltd | Color image forming device |
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