JPS62130344A - Deciding method for density value of scale for printing control - Google Patents
Deciding method for density value of scale for printing controlInfo
- Publication number
- JPS62130344A JPS62130344A JP60270886A JP27088685A JPS62130344A JP S62130344 A JPS62130344 A JP S62130344A JP 60270886 A JP60270886 A JP 60270886A JP 27088685 A JP27088685 A JP 27088685A JP S62130344 A JPS62130344 A JP S62130344A
- Authority
- JP
- Japan
- Prior art keywords
- scale
- center
- density
- value
- maximum
- 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
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
【発明の詳細な説明】
〈発明の技術分野〉
本発明は、校正印刷1幾上で印刷管理用データ検知装置
が、校正刷管埋に必要なデータ?得るために、複数段の
印刷管理用スケール?走査して得られた虚数の磯度デー
タ?処理する遺産1直判別方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Technical Field of the Invention> The present invention provides a data detection device for print management that detects data necessary for proof printing during proof printing. Multi-stage print management scale to get? Imaginary rockiness data obtained by scanning? This invention relates to a method for directly determining heritage items to be processed.
〈従来技術とその問題点〉
従来、同一出願人に係る昭、FD59年10月22日特
許出願「複数段の印刷管理用スケールの濃度値判別方法
」によれば、第2図で示すように平台校正印刷機に付属
されている印刷管理用データ検知装置13)が!、@か
いピッチで印刷用紙(1)上に印刷された複数段の印刷
管理用スケール(2)¥測定し、得られた複数の濃度デ
ータ?、記憶領域(図示せずンに記憶させ、記憶させた
印刷管理用スケール(2)の前後の紙白部分濃度値と印
刷管理用スケール濃度値との端点?判断し、記憶領域の
端点間?印刷管理用スケール:2)の段数に応じて等分
割することで、複数段の印刷管理用スケール(2)の個
々のスケールの中央付近の濃度値を推定している。<Prior art and its problems> Conventionally, according to a patent application filed by the same applicant on October 22, FD 59, entitled "Method for determining density value of multi-stage printing management scale," as shown in Fig. 2, The print management data detection device 13) attached to the flatbed proofing printer! , @Multiple density data obtained by measuring multiple levels of printing management scale (2) printed on printing paper (1) at a high pitch? , the endpoints of the paper white area density values before and after the stored printing management scale (2) are stored in the storage area (not shown), and the endpoints of the printing management scale density values are determined. By equally dividing the printing management scale (2) according to the number of stages, the density value near the center of each scale of the print management scale (2) having multiple stages is estimated.
しかし、この方法では、有色紙の場合、ベタ濃度が不安
定な場合、スケールの一度が非常に低い場合など紙白(
8)とスケール部の濃度差が小さく、端点の決定が難し
いという欠点がある。また印刷管理用スケール(2)の
形が第3図のように、中間部分vc tlk度h′−低
い部分が存在した場合、中間部分の濃度が低い部分と紙
白(8)?誤認する可能性があるという欠点がある。However, with this method, paper white (
The disadvantage is that the difference in density between 8) and the scale part is small, making it difficult to determine the end points. In addition, if the shape of the print management scale (2) is as shown in Figure 3, if there is a middle part with low vc tlk degree h'-, the middle part has a low density part and paper white (8)? The disadvantage is that there is a possibility of misidentification.
〈発明の目的〉
本発明は、上記問題点?解決丁べ〈発明されたものであ
り、印−り管理用スケール(2)の形が第3図のように
、中間部分に一度が低い部分が存在したり、スケールの
網点%が小さく濃度が低い場合、ベタ濃度が変動してい
る場合、有色紙の場合などでも正確に、個々のスケール
の中心部?推定し、スケールの濃度値を求める一開直判
別方法?提供するものである。<Object of the invention> Does the present invention solve the above problems? The shape of the mark management scale (2) is as shown in Figure 3, where there is a low density area in the middle, and the halftone dot percentage of the scale is small and the density is low. If the density is low, if the solid density is fluctuating, or if it is colored paper, etc., can you accurately locate the center of each scale? Is there a direct discrimination method that estimates and obtains the concentration value of the scale? This is what we provide.
〈発明の概要〉
本発明は、平台校正印刷機に設けられた印刷管理用デー
タ演知装置h′−腹数段(8段)の印刷管理用スケール
?走査することにより得られた反lid開直から、複数
段のスケールの各鷹開直?推定する濃度値判別方法にお
いて、印刷管理用スケール?細かいピッチで測定2行い
、記瞳@域に記憶した複数のc美開直のある範囲内の最
大値を求め、前記記憶領域の複数の一度値と順次比較し
てゆき。<Summary of the Invention> The present invention provides a print management data display device h'--an 8-stage print management scale provided in a flatbed proofing printing machine. From the anti-lid opening obtained by scanning, each hawk opening of the multi-stage scale? Is there a scale for printing management in the method of determining density values to be estimated? Two measurements are carried out at fine pitches, the maximum value within a certain range of a plurality of c beauty apertures stored in the memorized pupil@area is determined, and it is sequentially compared with the plurality of once values in the storage area.
最大値から一定の+i *引いた濃度値以上の部分の中
心?、最大網点%のスケールの中心と判断し、ある。Is it the center of the area that is greater than or equal to the density value obtained by subtracting a constant +i * from the maximum value? , is determined to be the center of the scale of the maximum halftone dot %.
〈実施例〉 以下、本発明の一実施例について説明する。<Example> An embodiment of the present invention will be described below.
第1図は、本方法の流れ図?示している。まず、データ
測定(ステップ1)は、第2図で示すようにタイミング
用センサー(5)カータイミングマーク(4)?検知し
てから、一定のサンプリング周期で、紙白(8)、印刷
管理用スケール(2)、紙白(8)と走査し、漠度デー
タ?得る。本実施例では、第4図で示すような網点面積
率30%、70%、100%の3段の印刷管理用スケー
ル+21 Y使用しているが、印!11管理用スケール
12)は目的により他の形のものでもよい。測定された
n個のデータはA/D変換され記憶領域(図示せず〕に
記はされる。コンピュータで処理するため、記憶領域中
にあらかじめ濃度データan個分の配列2作っておき、
第5図に示すように、測定された濃度データ?配列A(
1)から入In)に入れる(ステップ2)。次にA(α
)からAIμの間で最大値A(max)2求める(ステ
ップ5)。Is Figure 1 a flow chart of this method? It shows. First, data measurement (step 1) is performed using the timing sensor (5) and car timing mark (4) as shown in Figure 2. After detection, scan the paper white (8), print management scale (2), and paper white (8) at a fixed sampling interval, and then scan the vague data? obtain. In this example, a three-stage print management scale with halftone area ratios of 30%, 70%, and 100% as shown in Fig. 4 +21Y is used. 11 management scale 12) may have other shapes depending on the purpose. The n measured data are A/D converted and recorded in a storage area (not shown).In order to be processed by a computer, two arrays for an density data are created in advance in the storage area.
As shown in Figure 5, the measured concentration data? Array A(
1) into In) (Step 2). Next, A(α
) to AIμ, the maximum value A(max)2 is determined (step 5).
このαとβは予め最大値が現れろと思われる区間を示す
もので、N(1)から& fnlまでの間で最大@?求
めようとすると、演算時間がかかったり、スケール外の
汚れ?測定した一度データ?最大値と誤認する可能性が
あるので、最大値が現れると予想る
させる区間内であXαとβとの間で最大値を求めている
。この区間は、スケールの形状、a度データ数等により
予め決められる。These α and β indicate the interval in which the maximum value is expected to appear, and the maximum @? between N(1) and &fnl. When I try to find it, does it take a lot of time to calculate, or is there dirt outside the scale? Data measured once? Since there is a possibility that the maximum value may be mistaken as the maximum value, the maximum value is determined between Xα and β within the interval where the maximum value is expected to appear. This section is determined in advance based on the shape of the scale, the number of a degree data, etc.
次に、maxと01との予想される最大ずれ?表わすn
sと、濃度誤差の許容範囲?示すC?用いてN(max
ns)からA(max)の間ではじめてA(nl)
≧A (max)−Cとなるn11al−求める。次に
、 A(max)からA fnlQ間ではじめてl’t
(A2)≦A (max)−Cとだし、A5が小故にな
る場合、切り捨て@数比)となる1s17求め、N(A
3 ) ’f: 100%スケールの中央のI、A11
f−値とし、 A(A52)からN(n5+2)の5つ
の儂開直?平均して最大網点%のスケール、つまり、1
00%のスケールのa開直とする。次に、30%、70
%のスケールの中心と、100%のスケールの中心との
予想される距離264口、。。Next, what is the expected maximum deviation between max and 01? represents n
s and the allowable range of concentration error? Show C? using N(max
A(nl) for the first time between ns) and A(max)
Find n11al- such that ≧A (max)-C. Next, l't for the first time between A(max) and A fnlQ
(A2)≦A (max)-C, and if A5 becomes a small failure, calculate 1s17, which is rounded down @number ratio), and N(A
3) 'f: I, A11 in the center of the 100% scale
As f-value, five openings from A (A52) to N (n5+2)? On average the maximum halftone % scale, i.e. 1
00% scale a open aperture. Then 30%, 70%
The expected distance between the center of the % scale and the center of the 100% scale is 264 points. .
n7Gとする。この日5゜とn70 ’r用いて30%
。Let it be n7G. 30% using 5° and n70'r on this day
.
70%のスケールの一度1直rそれぞれA(A5−n5
o) IA (15n7G )の前後2つの4反と合わ
せた計5っの平均として各々のスケールの濃度?求める
(ステップ5)。ここで、C* ns * nga t
n70の値は、予めスケールの形状やIJk度データ
数により、適切に決められる。70% scale once 1 straight r each A (A5-n5
o) Concentration of each scale as the average of 5 total including 2 4 counters before and after IA (15n7G)? (Step 5). Here, C * ns * nga t
The value of n70 is appropriately determined in advance based on the shape of the scale and the number of IJk degree data.
次に、実際に行なわれた検知より各濃度の算出までの例
?用いて説明する。予め定められたパタメータは、n
= 200 、α=100.β=180.0=0.05
、 n、=50 、 n5(1;78 Hn7゜=5
9 とした。このとき求められたデータ?第5図に示す
。この場合。Next, is there an example from the actual detection to the calculation of each concentration? I will explain using The predetermined parameters are n
= 200, α=100. β=180.0=0.05
, n,=50, n5(1;78 Hn7゜=5
It was set at 9. What data was requested at this time? It is shown in FIG. in this case.
A(max)となる値は、A(147)=1.46であ
る。The value of A(max) is A(147)=1.46.
次に入(147−50)からA(147)の間ではじめ
て1.46−0.05より大きくなる値γil、−+=
141と求め、A (147)からA、(200)の闇
ではじめて1.46−0.05より小さくなる値7n2
−160として求める。Next, the value γil, which becomes larger than 1.46-0.05 for the first time between In (147-50) and A (147), -+=
141, and the value 7n2 becomes smaller than 1.46-0.05 for the first time from A (147) to A, (200) darkness.
Calculate as -160.
このnlとn21用いて(n、 +n2)/2=(14
1+1+SO) /2r求め、さらに小数点?切り捨て
る事によりn5=150という1直?求める。次にA(
15O−2) 、A(150−1) 。Using this nl and n21, (n, +n2)/2=(14
1+1+SO) Find /2r and then decimal point? By rounding down, n5 = 150, which is one shift? demand. Next, A(
15O-2), A(150-1).
A(150) 、A(150+1 )、A(150+2
)Ial−平均して100%スケールの濃度値である1
、46¥:求める。また。A(150), A(150+1), A(150+2
) Ial - 1 which is on average the concentration value of 100% scale
, ¥46: Ask. Also.
A(15O−78−2) 、A(150−78−1)
eA(15o−y8) eA(150−78+1)、A
(150−78+2) Y平均して30%スケールの
1度値である0、27 g求める。また、A(150−
39−2)、入(150−39−1)、A(150−5
9)。A(15O-78-2), A(150-78-1)
eA (15o-y8) eA (150-78+1), A
(150-78+2) Y Find 0.27 g, which is a 1 degree value on a 30% scale, on average. Also, A(150-
39-2), entering (150-39-1), A (150-5
9).
A(150−59+1)、A(150−39+2) k
平均して70%スケールの濃度値である0、75¥:求
める。A(150-59+1), A(150-39+2) k
Average concentration value of 70% scale, 0.75 yen: Find.
本発明は1本実施例に限定されるものではなく。The present invention is not limited to this one embodiment.
本発明の趣旨?逸脱しない範囲内で種々変形実施可能で
ある。Purpose of the invention? Various modifications can be made within the range.
〈発明の効果〉
以上に述べたように、本発明によれば、印制菅埋用スケ
ールの網点%が小さく#度が低い場合や、印刷管理用ス
ケールの中間部分に濃度の低い部分がある場合、有色祇
に印刷する場合などでも、正確に印刷管理用スケールの
個々のスケールの中心付近の濃度値が測定できるという
丁ぐれた効襲がある。<Effects of the Invention> As described above, according to the present invention, when the halftone dot percentage of the stamping tube filling scale is small and the # degree is low, or when there is a low density part in the middle part of the print management scale, In some cases, even when printing on colored paper, the density value near the center of each scale of the print management scale can be accurately measured.
【図面の簡単な説明】
第1図は、本発明の濃度値判別方法の一実施例r示す流
れ図、第2図は、校正印filI磯と印刷管理用スケー
ル、タイミングマークの要部r示す説明図、第3図は、
印刷管理用スケールの一例?示す説明図、第4図は1本
実施例の印刷管理用スケールに示す説明因、第5図は、
本実施例の濃度値r示すグラフ図である。[Brief Description of the Drawings] Fig. 1 is a flowchart showing an embodiment of the density value discrimination method of the present invention, and Fig. 2 is an explanation showing the main parts of the calibration mark filI, print management scale, and timing mark. Figure 3 is
An example of a print management scale? The explanatory diagram shown in FIG. 4 shows the explanatory factors shown in the print management scale of this embodiment, and FIG.
FIG. 3 is a graph diagram showing the density value r of this example.
Claims (1)
れる複数段の印刷管理用スケールの濃度情報を選別する
濃度値判別方法において、連続して入力された濃度情報
を記憶し、前記濃度情報から最大値を求め、最大値から
一定の値を引いた濃度値以上の濃度を示す範囲の中心を
最大網点%のスケールの中心と判別し、前記中心から一
定の距離の場所を他のスケールの中心と判別し、各中心
付近の濃度情報を各スケールを代表する濃度値とするこ
とを特徴とする印刷管理用スケールの濃度値判別方法。 2)前記濃度情報の最大値を求める範囲が、印刷管理用
スケールの形状と前記記憶装置中の濃度情報数から設定
されることを特徴とする特許請求の範囲1項記載の印刷
管理用スケールの濃度値判別方法。 3)、前記算出されたスケールの中心部の周辺の複数個
の濃度情報を平均して各スケールを代表する濃度値とす
ることを特徴とする特許請求の範囲1項記載の印刷管理
用スケールの濃度値判別方法。[Claims] 1) In a density value determination method for selecting density information on a multi-stage print management scale used to manage the print quality of a flatbed proofing printing press, continuously input density information is The maximum value is determined from the density information, and the center of the range indicating a density equal to or higher than the density value obtained by subtracting a certain value from the maximum value is determined as the center of the maximum halftone dot % scale, and the center of the range is determined to be a certain distance from the center. A method for determining a density value of a scale for printing management, characterized in that the location of is determined as the center of another scale, and density information near each center is taken as a density value representative of each scale. 2) The print management scale according to claim 1, wherein the range for determining the maximum value of the density information is set from the shape of the print management scale and the number of density information in the storage device. Concentration value determination method. 3) The print management scale according to claim 1, wherein a plurality of pieces of density information around the center of the calculated scale are averaged to obtain a density value representative of each scale. Concentration value determination method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60270886A JPS62130344A (en) | 1985-12-02 | 1985-12-02 | Deciding method for density value of scale for printing control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60270886A JPS62130344A (en) | 1985-12-02 | 1985-12-02 | Deciding method for density value of scale for printing control |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62130344A true JPS62130344A (en) | 1987-06-12 |
JPH0453181B2 JPH0453181B2 (en) | 1992-08-25 |
Family
ID=17492333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60270886A Granted JPS62130344A (en) | 1985-12-02 | 1985-12-02 | Deciding method for density value of scale for printing control |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62130344A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005313431A (en) * | 2004-04-28 | 2005-11-10 | Sakata Corp | Method for determining printing density and printing plate used for it |
US7202973B2 (en) | 2001-07-04 | 2007-04-10 | Dainippon Screen Mfg. Co., Ltd. | Patch measurement device |
-
1985
- 1985-12-02 JP JP60270886A patent/JPS62130344A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7202973B2 (en) | 2001-07-04 | 2007-04-10 | Dainippon Screen Mfg. Co., Ltd. | Patch measurement device |
JP2005313431A (en) * | 2004-04-28 | 2005-11-10 | Sakata Corp | Method for determining printing density and printing plate used for it |
Also Published As
Publication number | Publication date |
---|---|
JPH0453181B2 (en) | 1992-08-25 |
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