JPS61267749A - Controlling method for photographic system - Google Patents
Controlling method for photographic systemInfo
- Publication number
- JPS61267749A JPS61267749A JP10976785A JP10976785A JPS61267749A JP S61267749 A JPS61267749 A JP S61267749A JP 10976785 A JP10976785 A JP 10976785A JP 10976785 A JP10976785 A JP 10976785A JP S61267749 A JPS61267749 A JP S61267749A
- Authority
- JP
- Japan
- Prior art keywords
- photographic
- value
- data
- average
- films
- 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
Links
Landscapes
- Projection-Type Copiers In General (AREA)
- Control Of Exposure In Printing And Copying (AREA)
- Photographic Developing Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
(発明の技術分野)
この発明は、時間的に変動する写真特性(現像処理特性
、写真焼付条件特性等)を精度良く検出してコントロー
ルする写真システム系の制御管理方法に関する。Detailed Description of the Invention (Technical Field of the Invention) This invention relates to a control management method for a photographic system that accurately detects and controls temporally varying photographic characteristics (development processing characteristics, photographic printing condition characteristics, etc.). Regarding.
(発明の技術的背景とその問題点)
写真システム系の制御要因には簡単な測定により状態を
正確に把握可能なもの(例えばプリンタ光源の変動等)
の他、種々の要因が多く絡んだ写真特性(現像処理特性
、写真焼付条件特性1画像再現特性等)がある0例えば
、現像処理特性は処理液自体の特性の他に、特性の測定
に用いる写真感材(通常コントロールフィルム)の性能
バラつきや経時変動、濃度測定器の変動などを全てを含
んで測定される。又、写真焼付条件は上記現像処理特性
の他に焼付けるべきフ身ルム特性、被写体、撮影光源等
やプリンタの諸物件の変動も含まれ、それら要因は総合
的に考慮されてはじめて適正な焼付条件の制御及び管理
がなされる0通常これらの制御や管理は1人の経験と勘
によるか測定器を用いるかするが、人の関与が必要であ
り、しかも必らずしも高い精度で常にコントロールでき
ているとは言えない、これらの制御や管理は自動的に行
なわれることが望まれるが、そのためには人の関与無く
、制御すべき現在の情況が定量的に観測される必要があ
る。(Technical background of the invention and its problems) Control factors for photographic systems include those whose conditions can be accurately grasped through simple measurements (for example, fluctuations in the printer light source, etc.)
In addition, there are photographic characteristics that involve many other factors (development processing characteristics, photographic printing condition characteristics, image reproduction characteristics, etc.)0 For example, development processing characteristics are used to measure characteristics in addition to the characteristics of the processing solution itself. It is measured including all variations in the performance of the photographic material (usually control film), changes over time, and changes in the density measuring device. In addition to the above-mentioned development processing characteristics, photographic printing conditions also include the characteristics of the film to be printed, the subject, the photographic light source, and various printer properties, and proper printing cannot be achieved until these factors are comprehensively considered. Conditions are controlled and managed.Normally, these controls and management are carried out by one person's experience and intuition, or by using a measuring instrument, but human involvement is required, and it is not always possible to maintain a high level of accuracy. It is desirable that these controls and management be carried out automatically, but in order to do so, it is necessary to quantitatively observe the current situation to be controlled without human involvement. .
これら写真特性の変動要因を個々に測定して管理するこ
とは困難であるため、これら変動を総合して情況を把握
し得る少数の値又は変動と高い相関を有する少数の値辷
よる制御が有効である。Since it is difficult to measure and manage each of these fluctuation factors in photographic characteristics individually, it is effective to control by a small number of values that can grasp the situation by integrating these fluctuations, or a small number of values that have a high correlation with the fluctuations. It is.
(発明の目的)
この発明は上述のような事情からなされたものであり、
この発明の目的は、時間と共に除々に変化する写真特性
を現時点までのデータによりdを推定し、現状にあった
適正な制御及び管理を行なうようにした写真システム系
の制御管理方法を提供することにある。(Object of the invention) This invention was made under the above circumstances,
An object of the present invention is to provide a control and management method for a photographic system that estimates d based on data up to the present time for photographic characteristics that gradually change over time, and performs appropriate control and management in accordance with the current situation. It is in.
(発明の概要)
この発明は写真システム系の制御管理方法に関するもの
で、写真システム系の写真特性を時間の経過と共に測定
して#ML、上記写真特性の重要度を時間の関数として
変化させて得られる重み付け平均写真特性に基づいて、
L記写真システム系を類推的に制御管理するようにした
ものである。(Summary of the Invention) The present invention relates to a method for controlling and managing a photographic system, in which the photographic characteristics of the photographic system are measured over time, #ML is determined, and the importance of the photographic characteristics is changed as a function of time. Based on the weighted average photographic characteristics obtained,
This system is designed to analogically control and manage the photographic system described in L.
(発明の実施例)
どの発明は時間経過と共に変化する写真システム系にお
いて、系の写真特性を時間の経過と共に測定して蓄積し
、時間の関数として写真特性の重要度を変化させて得ら
れる重み付け平均写真特性に基づいて写真システム系を
制御するようにしている。すなわち、一定時間(例えば
1日、10日等)又は一定量(例えば1000コマ)の
写真特性に正の重み付けをし、現時点より遠ざかる程小
さな重み付けをし、これらの重み付け移動平均写真特性
に基づいて制御する。又。(Embodiment of the Invention) Which invention relates to a photographic system that changes over time, and weighting obtained by measuring and accumulating the photographic characteristics of the system over time and changing the importance of the photographic characteristics as a function of time. The photographic system is controlled based on average photographic characteristics. That is, the photographic characteristics of a certain period of time (for example, 1 day, 10 days, etc.) or a certain amount (for example, 1000 frames) are positively weighted, and the farther from the current moment the smaller the weighting, and based on these weighted moving average photographic characteristics. Control. or.
一定時間又は一定量の写真特性が定められた範囲(例え
ば時間、量)の個々の写真特性の平均値であり、更に一
定時間又は一定量毎の写真特性を記憶して重み付け平均
写真特性を得るようにしても良い、この場合、記憶して
おく毎回の重み付けを変更して計算しても良い、又、一
定時間又は一定量の写真特性に重み付けを行ない、順次
平均値又は加算値を更新して行くようにしても良く、第
1図に示す如く各時間における写真特性の重み付けを変
えて行く、この場合、Mまでの重み付け平均値に重み係
数W(W<1.0)を乗算し、(N+1)の平均値を加
算して重み付けを更新して行く。A photographic characteristic over a certain period of time or a certain amount is the average value of individual photographic characteristics over a defined range (e.g., time, amount), and further photographic characteristics are stored for a certain period of time or a certain amount to obtain a weighted average photographic characteristic. In this case, it is also possible to calculate by changing the weighting each time it is memorized, or by weighting the photographic characteristics for a certain period of time or a certain amount, and sequentially updating the average value or added value. Alternatively, the weighting of photographic characteristics at each time may be changed as shown in FIG. 1. In this case, the weighted average value up to M is multiplied by a weighting coefficient W (W<1.0). The weighting is updated by adding the average value of (N+1).
又、第2図に示すように写真特性値の蓄積側aNを時間
に対して上限NO及び下限N[の範囲に設定し、データ
個数が上限値NUに達したら、上限値NLに変換し、そ
の値から再スタートするようにしてもよい、加算値とデ
ータ数を記憶しである場合は、データ数が上限値NUに
達したら、加算値及びデータ数をn倍(n<1で≠0)
した値から再スタートする。加算値のかわりに平均値を
記憶してもよい、すなわち、平均値をA、データ数をN
とし、現時点の写真特性をA、とじた場合。In addition, as shown in FIG. 2, the accumulation side aN of photographic characteristic values is set in the range of upper limit NO and lower limit N [with respect to time, and when the number of data reaches the upper limit NU, it is converted to the upper limit NL, If the added value and the number of data are memorized, when the number of data reaches the upper limit NU, the added value and the number of data may be restarted from that value by n times (if n<1, ≠0 )
Restart from the new value. An average value may be stored instead of the added value, that is, the average value is A and the number of data is N.
If the current photographic characteristics are A and closed.
A” (A 11N+Ao)/ (N+1)N=N+1
として記憶し1個数Nが上限値Nυに達したらN=NL
として始めるのである。A” (A 11N+Ao)/(N+1)N=N+1, and when the number N reaches the upper limit Nυ, N=NL
It begins as .
ここに、N1=N1enであり、nは1より小さい正の
数(例えば1/2.2/3・・・)である。Here, N1=N1en, and n is a positive number smaller than 1 (for example, 1/2.2/3...).
第3図は別の重み付け係数の決め方を示している。過去
のデータは現在に近いデータに比べ相対的に小さい重み
付けをした重み付き移動平均により現在の状態を推定す
ることである。FIG. 3 shows another method of determining weighting coefficients. The current state is estimated using a weighted moving average in which past data is weighted relatively lower than data close to the present.
第4図はフィルムの平均特性値を求める例を示したもの
である。イメージセンサ等によるフィルムの測光1につ
づき5分類情報に基づきフィルム種類別を分類2(A、
B、・・・N)L写真特性値りを蓄積するが、各蓄積側
aNが2000より小さい場合には全フィルムの蓄積デ
ータから求めた平均値DXで演算処理3を行ない、各デ
ータ個数が2000以上の場合、全フィルムの平均値O
Xの記憶値は用いず、各フィルムの蓄積データから求め
た平均特性値を写真焼付のコントロール4の値として用
いる。たとえば、1種のフィルムにつき1日当り100
本(約2000データ/日)処理する場合、上限を40
000 、下限を20000と定めると、10日の周期
で重み付けが変更される。また、この上限値及び下限値
はフィルム種毎に処理量により変更するのが良い、これ
によりフィルム現像の変動、季節変動等を逐次追跡して
その変動量を求め、それに基づき制御することが可能で
ある。多数データの平均値に基づく制御においては、た
とえば1000コマ目の1つのデータの制御への寄与と
、100000コマ目の1つのデータの寄与とは異なり
、また、1000(10コマのデータの方が平均値とし
ての精度は高いが、現状を推定するデータとしては役に
立たないという矛盾が起る。即ち、大量のデータを累積
するためには長時間を必要とするが、現時点より過去に
なるほど現状を反映しなくなる。FIG. 4 shows an example of determining the average characteristic value of a film. Following photometry 1 of film using an image sensor etc., classification 2 (A,
B,...N) L photographic characteristic values are accumulated, but if each accumulation side aN is smaller than 2000, calculation processing 3 is performed using the average value DX obtained from the accumulated data of all films, and the number of each data is If it is 2000 or more, the average value of all films O
The stored value of X is not used, but the average characteristic value determined from the accumulated data of each film is used as the value of control 4 for photographic printing. For example, 100 per day per type of film.
When processing books (approximately 2000 data/day), the upper limit is 40
000 and the lower limit is set as 20000, the weighting is changed every 10 days. In addition, it is best to change the upper and lower limits depending on the processing amount for each film type.This makes it possible to successively track changes in film development, seasonal changes, etc., find the amount of change, and control based on that. It is. In control based on the average value of a large number of data, for example, the contribution of one piece of data at the 1000th frame to the control is different from the contribution of one piece of data at the 100000th frame, and the contribution of one piece of data at the 1000th frame is different. The paradox is that although the average value is highly accurate, it is useless as data for estimating the current situation.In other words, it takes a long time to accumulate a large amount of data, but the more past the present time, the more accurate the current situation becomes. It will no longer be reflected.
本発明は1重み付け移動平均値を用いることによりこの
矛盾を解決したものである。The present invention solves this contradiction by using a 1-weighted moving average value.
第4図において、例えば焼付条件の制御では平均特性値
は平均LATD(Large Area 丁rans−
mittance Density)であり、演算処理
は基準となるLATDと求めた平均LATDの差の演算
である。In FIG. 4, for example, when controlling the baking conditions, the average characteristic value is the average LATD (Large Area D).
mittance Density), and the calculation process is to calculate the difference between the reference LATD and the calculated average LATD.
基準値よりのLATD差だけ現像特性が変化しているこ
とを示し、この差を修正するよう焼付条件を変更すれば
よい、また、フィルム種により異なる特性曲線の正規化
のためには、演算処理は正規化条件の算出である。デー
タ個数2000以下の場合は、予め記憶しである初期値
を利用してもよい、そのために、初期値入力手段をもっ
てもよい。This indicates that the development characteristics have changed by the LATD difference from the standard value, and the printing conditions can be changed to correct this difference.Also, in order to normalize the characteristic curves that differ depending on the film type, calculation processing is required. is the calculation of normalization conditions. If the number of data is 2000 or less, a pre-stored initial value may be used. For this purpose, an initial value input means may be provided.
第5図は加算及び初期化の例をフローチャートで示して
いる。FIG. 5 shows an example of addition and initialization in a flowchart.
すなわち、イメージセンナ等の測光(ステップSl)に
よって各コマの測光値D 、 Tを求め、濃度値D°の
加算と個数Nの加算を行ない(ステップS2)、このよ
うな測光をフィルム1本分の画像について繰り返す(ス
゛テップS3)、一定数。That is, the photometric values D and T of each frame are determined by photometry using an image sensor (step S1), and the density value D° and the number N are added (step S2), and such photometry is performed for one film. (Step S3) for a fixed number of images.
についての測光が行なわれた後、メモリに記憶されてい
る平均値A及び個数Nによって加算処理を行なう(ステ
ップ54)0個数Nが所定の上限値Nu 1.:なって
いない場合は、その平均値と個数をそのままメモリに記
憶しくステップS5.S8)、上限値Nuに達している
場合は個数を下限値NL にして記憶する(ステップ5
III、S8)、そして、上述のような処理を測定中止
となるまで繰り返す(ステップS7)、メモリに記憶し
たデータは現tn理液の交換、フィルムのタイプ切換、
測光系やプリンタの故障によって消す必要が生じる。そ
のため、外部からの入力により記憶データを消す又は初
期値へ戻す手段を持つようにするとよい。After photometry is performed for , an addition process is performed using the average value A and the number N stored in the memory (step 54).The 0 number N is a predetermined upper limit value Nu1. : If not, the average value and number are stored in the memory as they are in step S5. S8), if the upper limit value Nu has been reached, the number is changed to the lower limit value NL and stored (step 5).
III, S8), and the above-mentioned processing is repeated until the measurement is stopped (step S7).The data stored in the memory is used to replace the current tn physical solution, change the film type,
It becomes necessary to erase the image due to a malfunction of the photometry system or printer. Therefore, it is preferable to have a means for erasing stored data or returning it to the initial value by inputting from the outside.
写真焼付条件決定への別の利用法として、例えばタング
ステン光撮影フィルムの色座標上での座標点又は座標領
域の決定、色座標上でのコレクション績の決定等に用い
ることができ、さらに濃度補正の傾向、カラー補正の傾
向等の補正や修正傾向から、最適条件を求めるのにも利
用することができる。さらに、画像の測定装置1表示装
置、出力装置の経時劣化や各種変動等の検出、修正にも
応用することができる。第6図(A)はデータ数のクリ
ップ経過を示し、同図(El)はこれに対応する現時点
での過去のデータの重み係数め例を示している。As another use for determining photographic printing conditions, it can be used, for example, to determine coordinate points or coordinate areas on the color coordinates of tungsten light photography film, to determine collection results on the color coordinates, and furthermore, it can be used for density correction. It can also be used to find optimal conditions from correction and modification trends such as color correction trends and color correction trends. Furthermore, it can be applied to detecting and correcting deterioration over time and various fluctuations in the display device and output device of the image measuring device 1. FIG. 6(A) shows the clip progress of the number of data, and FIG. 6(El) shows an example of the weighting coefficient of the past data at the present time corresponding to this.
(発明の効果)
以上のようにこの発明方法によれば、時間と共に変化す
る写真特性を現時点までのデータにより現状を推定して
重み付けを行なっているので、現状に適した適正な制御
及び管理を行なうことが可能となる。(Effects of the Invention) As described above, according to the method of the invention, the current state of photographic characteristics that change over time is estimated and weighted using data up to the present time, so appropriate control and management suitable for the current state can be carried out. It becomes possible to do so.
第1図〜第3図はそれぞれこの発明方法の例を説明する
ための図、f54図はこの発明のフィルムの平均特性値
を求めるフローチャート、第5図はこの発明における加
算及び初期化の例を示すフローチャート、第6図(A)
及び(B)は写真焼付条件決定への利用を説明するため
の図である。
1・・・測光、2・・・フ・イルム種の分類1.3・・
・演算処理、4・・・コントロール。
出願人代理人 安 形 雄 三
第 ! 図 も 2 図
時間
第 5 回FIGS. 1 to 3 are diagrams for explaining examples of the method of this invention, FIG. Flowchart shown in FIG. 6(A)
and (B) are diagrams for explaining the use for determining photo printing conditions. 1...Photometry, 2...Film species classification 1.3...
- Arithmetic processing, 4... Control. Applicant's agent Yu Yasugata third! Figure also 2 Figure time 5th
Claims (3)
定して蓄積し、前記写真特性の重要度を時間の関数とし
て変化させて得られる重み付け平均写真特性に基づいて
、前記写真システム系を類推的に制御管理するようにし
たことを特徴とする写真システム系の制御管理方法。(1) Measuring and accumulating the photographic characteristics of the photographic system over time, and estimating the photographic system based on the weighted average photographic characteristics obtained by changing the importance of the photographic characteristics as a function of time. A method for controlling and managing a photographic system, characterized in that the control and management is performed in a controlled manner.
の写真特性に正の重み付けをすると共に、時間の経過に
従って小さくするようにした特許請求の範囲第1項に記
載の写真システム系の制御管理方法。(2) Control management of the photographic system according to claim 1, wherein the weighted average photographic characteristics are positively weighted for a certain period of time or a certain amount of photographic characteristics, and are decreased as time passes. Method.
の写真特性に重み付けをすると共に、平均値又は加算値
を順次更新して行くようにした特許請求の範囲第1項に
記載の写真システム系の制御管理方法。(3) The photographic system according to claim 1, wherein the weighted average photographic characteristics are weighted for a certain period of time or a certain amount of photographic characteristics, and the average value or the added value is sequentially updated. control management method.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10976785A JPS61267749A (en) | 1985-05-22 | 1985-05-22 | Controlling method for photographic system |
US07/355,105 US4884102A (en) | 1985-05-22 | 1989-05-18 | Controlling method for a photographic system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10976785A JPS61267749A (en) | 1985-05-22 | 1985-05-22 | Controlling method for photographic system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61267749A true JPS61267749A (en) | 1986-11-27 |
JPH0473935B2 JPH0473935B2 (en) | 1992-11-25 |
Family
ID=14518711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10976785A Granted JPS61267749A (en) | 1985-05-22 | 1985-05-22 | Controlling method for photographic system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61267749A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03291643A (en) * | 1990-04-10 | 1991-12-20 | Fuji Photo Film Co Ltd | Controller for copying device |
US5767983A (en) * | 1995-03-24 | 1998-06-16 | Fuji Photo Film Co., Ltd. | Color copying apparatus for determining exposure amount from image data of an original image and a reference image |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5630121A (en) * | 1979-08-22 | 1981-03-26 | Fuji Photo Film Co Ltd | Controlling method of exposure for photographic printing |
JPS56153335A (en) * | 1980-04-30 | 1981-11-27 | Fuji Photo Film Co Ltd | Exposure control method |
-
1985
- 1985-05-22 JP JP10976785A patent/JPS61267749A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5630121A (en) * | 1979-08-22 | 1981-03-26 | Fuji Photo Film Co Ltd | Controlling method of exposure for photographic printing |
JPS56153335A (en) * | 1980-04-30 | 1981-11-27 | Fuji Photo Film Co Ltd | Exposure control method |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03291643A (en) * | 1990-04-10 | 1991-12-20 | Fuji Photo Film Co Ltd | Controller for copying device |
US5767983A (en) * | 1995-03-24 | 1998-06-16 | Fuji Photo Film Co., Ltd. | Color copying apparatus for determining exposure amount from image data of an original image and a reference image |
US5987222A (en) * | 1995-03-24 | 1999-11-16 | Fuji Photo Film Co., Ltd. | Color copying apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0473935B2 (en) | 1992-11-25 |
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