WO2005025872A1

WO2005025872A1 - Method and device for verifying printing results

Info

Publication number: WO2005025872A1
Application number: PCT/DE2004/002045
Authority: WO
Inventors: Sören SPRINGMANN; Kerstin Münker; Dirk Lütjens; Ansgar Kaupp
Original assignee: Eyec Gmbh
Priority date: 2003-09-12
Filing date: 2004-09-13
Publication date: 2005-03-24
Also published as: EP1673226B1; DE112004001827D2; EP1673226A1; PL1673226T3

Abstract

Disclosed are methods for verifying printing results, according to which a pattern repeat (3) is first scanned in, whereupon copies (9) included on the pattern repeat (3) are selected, and the selected copies (9) are compared to an original (30). The inventive device for verifying printing results, which comprises a scanner, a data processing device, and a user interface encompassing at least one display unit and an input unit, is provided with a copy recognition module for copies (9) included on a scanned pattern repeat (3). The invention allows a large number of copies (9) to be verified in a reliable and fast manner.

Description

Method and device for checking printed results

[01] The invention relates to a method and a device for checking printed results.

For example, DE 694 24 559 T2, DE 199 39 164 A1, WO 02/083423 A1, DE 195 12 501 A1, DE 41 24 397 A1, DE 102 18, are known from the prior art 068 AI, DE 41 02 122 C2, DE 37 13 279 AI and DE 101 00 851 AI various technological methods known in which the quality of printed images to be checked. This takes place online and directly by means of suitable physical measuring methods, the measured values being taken directly from the pressure and, as a matter of principle, an evaluation of the measured values as to how far they represent a relevant error can not be made.

[03] In order to check print results, a repeat, generally sometimes referred to as a proof, is generally cumulatively or alternatively compared with a corresponding template. In this case, the template is usually the pattern that was given to a printing company and that applies as a reference for the order to be printed. Here, the template may for example be made of paper or as a label (return pattern). Likewise, in this regard, an electronic document or a graphics file or the like can serve as a template. With a report, the reliability and quality of the printing with respect to the original can be proven or ensured.

[0001] For example, DE 197 44 999 A1 discloses that such a report can also be scanned for checking, ie entered into a data processing system. On the other hand, this document discloses only the implementation of the disclosed in the other aforementioned publications, substantially analog measurement methods on a digitized method

Such prints can be provided randomly in particular in printing processes in which prints are produced periodically by means of prefabricated printing plates, rollers or similar devices. In such arrangements, the length of the respective repeat corresponds to the period length of the corresponding printing device in the case of rotating printing cylinders , Rolls or -siebe is a rapport preferably as long as a circumference of the largest printing cylinder or the largest pressure roller or the same length as the largest printing screen In addition, a repeat is preferably as wide as the printing web, so that with a repeat an entire printing process, the then periodically performed, can be checked

[06] It is understood that under certain circumstances it may be sufficient to choose smaller repeats

[07] A check of print results is particularly complex if a repeat has several identical images called "benefits", as is the case, for example, for the industrial printing of labels, leaflets, small packs or user manuals. In the first place, care was taken to print as many benefits as possible with one turn or one step of the press

[08] Corresponding reports can also be checked in continuous printing processes, such as for example gravure printing (decor printing), web offset or continuous roll flexo printing (label production, film printing). It is also conceivable, in particular, for the corresponding test inline, ie for the entire material to be printed or for each individual pressure, whereby also here the problem that a multiplicity of identical uses must be examined, occurs In addition, DE 195 25 186 AI discloses a method for determining measurement locations in the scanning of printed products, which can work with a variety of benefits Here are determined by a user manually certain easily recognizable locations of individual benefits, this always the In this way, a measuring location following this can first be selected for a benefit and then readily transferred to the other uses by transmitting the relative position to the previously selected first location

[10] It is an object of the present invention to provide a method and a device for checking printed results in which, in particular, a very large number of uses can be tested reliably

As a solution, the invention proposes a method for checking printed results, in which first a rapport, for example taken by a scanner, then selected on the repeat benefits and the selected benefits are compared with a template

In the present context, the term "benefit selection" includes in particular a recording of the individual benefits by a data processing system, which makes it possible to further process the individual benefits separately or to compare each individual benefit with a template In the context of the present invention is thus a Usage selection A process in which a report is divided into different areas, each representing a benefit, in a data processing system and the totality of the objects, such as the totality of the respective pixels, of each of these areas can be subjected to a joint action Such benefit selection can capture in particular the number of benefits of the repeat and their position

In contrast to DE 195 25 186 AI thus at the beginning of the process all picture components, such as all pixels, a benefit so detects that these are available as belonging to the benefit of the data processing system In this way, the data processing system allows for the first time, the quality of a benefit within certain limits independently, that is, in the context of previously specified parameters, to check and at least suspect points to mark a user In this way, even a very large number of benefits can be tested relatively reliably. In particular, if a suitable pattern recognition or the like is used, a manual intervention for the benefit selection can be dispensed with, which as a rule is relatively expensive and thus, in particular a large number of benefits, as proves unsafe

[14] In addition, a utility-dependent transformation, such as a matrix, which in addition to the position also includes a scaling, displacement or the like, can be determined for each individual benefit. By means of such a selection, linear or non-linear distortions, in particular of benefit, can be used Such a benefit selection is particularly advantageous over a mere geometric marking of a benefit, which is then transferred by linear transformation to the other benefits, since a benefit as such is selected and can be "recognized" by the data processing system, as will be explained in more detail below

It should be emphasized that the benefit selection is preferably automatic, which can be realized, for example, that a recorded area is searched for repetitive patterns This is preferably not done with the highest accuracy, so that individual errors do not affect the benefit selection On the other hand optionally also a manual or semi-automatic benefit selection is conceivable, in particular under adverse operating conditions, however, an automatic benefit selection, in particular accompanied by automatic benefit recognition, is to be preferred Preferably, the selected benefits are compared with the template only after the benefit selection, wherein, depending on the specific embodiment of the invention, for example already during the benefit selection, a pre-comparison can be carried out within certain limits, which serves to select the individual benefits For example, by comparing the template with individual areas of the repeat under a relatively large tolerance threshold In this way, each a specific area of a repeat can be defined as a benefit or select if this agrees with the template within the appropriate tolerance threshold

[17] In addition to this method characterized by the respective template and the tolerance threshold, however, a benefit identification can also be carried out for the benefit selection. In the present context, the term "recognition" refers to a conversion of the graphical features of an image or an image area to at least one of them storable by a data processing system Form that this image or the area in question can be defined as a specific object, such as a benefit or as a template, for the implementation of substantially or even only information from the corresponding image or the corresponding field are used in particular For example, the benefit recognition may include an assignment of the individual components, for example the individual pixels, of a benefit to a benefit specific origin or of a benefit specific coordinate system of the respective benefit ls an independent object and is defined out of itself, a process that can accordingly also be described as a "recognition" of a benefit. For example, in such an approach, variations in the distances between the individual benefits are irrelevant, since the recognition of benefits is of benefit in each case defined by itself, for example, such a benefit on a repeat, or on another area, is determined by a pattern recognition as an independent unit and localized [18] Such an approach has the particular advantage that areas not recognized as components of a benefit are not included in the review, so that the review is much more targeted. Insofar, if necessary, there are areas of a report or of an area to be reviewed that are not reviewed or provided for review by an examiner

In particular, such a utility recognition can also include a benefit-dependent transformation, such as a matrix, between the respective utility and a template. Such a utility-dependent transformation can, in addition to the position that can already serve a benefit selection, also be scaled for the respective one Benefits include This scaling may in particular comprise rotation, translation and distortion components, wherein preferably threshold values are indicated, from which such components are marked as possible errors (suspicions) on the part of the data processing system. Likewise preferably threshold values can be specified, from which such Components are compensated by the data processing system, so that such a deviation of the printed image inspection by a verifier is not affected, since this does not get these deviations at all Is the corresponding Darstellungssc exceeded value, then the actual benefit and not the scaled benefits is shown, so that the deviation can be checked by the auditor In an exemplary embodiment, for example, a presentation threshold from which a benefit is displayed unscaled with respect to the corresponding components, and a marking threshold from which the benefit is marked due to a high translation, rotation or distortion with respect to the template as suspicion, be provided, - depending on the specific embodiment - the presentation threshold and the marking threshold can be selected differently or the same [20] Such a scaling makes it possible to separate product fluctuations of intolerable product defects which are caused by production or are tolerable for production. In particular, the visual detection of an inspector can be relieved by compensating such tolerable scaling errors

[21] Accordingly, according to the present invention, there is also proposed a printing result checking apparatus comprising an image capturing apparatus such as a scanner, a data processing apparatus, and a user interface having at least one display and one input and characterized by having a useful detection module for the printing results a utility scanned report for the purpose of selecting the benefits of the repeat is provided, this benefit detection module comprises a pattern recognition

[22] It is understood that in the present context the term "scanner" or the terms "scan" or "scan" are to be understood in their most general form and include all possibilities with which a graphic or other printed object, photos or the like can be detected by a data processing system

[23] The benefit selection is preferably carried out in such a way that the individual benefits can be displayed in separate windows. Here, the term "window" refers to an active, self-contained area of a display that can be addressed separately. The use of separate windows for the representation of the selected benefits has the particular advantage that details of each individual benefit can be easily determined by a zoom factor the respective window can be highlighted, being ensured by a transfer of the window parameters, such as in particular the zoom factor and the position of the image section, on the remaining, use representing windows can be considered that at a variety of benefits the same site at the same time and comparative.

[24] This applies in particular if a benefit identification has previously taken place, because then the individual positions of the individual benefits are known and thus distortions are partially already compensated. In this respect, it is ensured that the respective image sections of the individual windows also represent almost identical relative sections of the individual benefits.

It is understood that in concrete implementation, not all the benefits in their windows must always be presented. Rather, it is advantageous if optionally also individual benefits in a very high magnification, for example, over a majority of the screen can be considered in detail.

[26] Accordingly, it is advantageous if the template can also be displayed in a separate window. This makes it possible in particular to provide the template with the corresponding zoom factor, so that a detailed comparison with a single benefit or with a variety of benefits can be made.

[27] Particularly in the case of bad originals or a significant but tolerable deviation of a large number of the benefits from the template, it may be advantageous to select a selected benefit as the template. This approach leads cumulatively or alternatively because of the great agreement between color and printing material between the template then selected and the other benefits to a significant reduction of the suspicion points to be examined in detail.

[28] In particular, this approach shows the advantage of a benefit selection, since, for example, before a rough pre-comparison with the given template can be done to quickly and efficiently find the most suitable, so in particular possible lent good benefits. In addition, the selection makes it possible to in windows and to quickly and reliably check details of these individual benefits in order to find a suitable benefit, which can then be used as a template for further testing

[29] Preferably, the device according to the invention comprises a template recognition module which is able to recognize a template as such in a graphics file. This has the advantage that in this graphics file optionally further information, such as detailed instructions to a printer or the like In this respect, it is advantageous if, for reading in a template, a graphic file containing the template is subjected to pattern recognition and the template is recognized. In this case, the pattern recognition can include, in particular, a frame recognition surrounding the corresponding template. In this regard, for example, the pattern recognition can be designed for it be to recognize a closed, monochrome line, which is preferably not present in a background color or preferably in yellow, magenta, cyan or black

The frame can - depending on the specific embodiment - be part of the template or not belong to this particular The frame can also specify the location of a punching edge on which, for example, a label punched and can be lifted accordingly Since a punching edge is preferably rounded so a lattice of labels can be done reliably, the specification of the frame with rounded corners meets the requirements of the punching edge, so that in this way a template becomes particularly effective and with minimal effort recognizable

Such a procedure or such a device ensures in particular also in the operational practice that a template can be reliably stored in the data processing machine and made available for further testing. It is understood that such a template recognition is independent of the other features of the invention for checking print results In addition, it is understood that such a template recognition can be effectively used with any graphic representation of a template as in a form suitable for a data processing machine "Graphic file" in this general form

[32] In particular, such a graphics file can be used as a template, which, moreover, regardless of de other features of the present invention is advantageous for an examination of printing results, as this in particular also readily supplied by the customer and can be selected for well valued file the latter makes dealing with a customer easier

Preferably, a suspicion site determination is carried out for the comparison between use and submission. For this purpose, a corresponding device can in particular comprise a suspicion site determination module. In this regard, all sites are designated as suspicion sites, of which the pressure or the benefits differ from the pattern or the submission On the one hand, suspicion detection can be operated without tolerances, so that any deviations which are too small, which can be recognized by the data processing device, are also marked as a suspicion point. On the other hand, it is possible to provide certain tolerances, such as a suspected location, for example in the case of register fluctuations or pinch edge detection Automatically evaluate as good, suppress an ad as a suspicion point in the case of a permitted deviation or do not mark this point as a suspicion point. This is because in a first step, only suspicion can be marked or otherwise presented, it is possible to perform a suspicion site determination automatically, that is without further manual intervention, whereby the activities during the actual examination or evaluation are considerably facilitated This may contain suspicion points as Missing letters or parts, as distortion, as overprinting, as accrued letters, as missing color, as stains, as color deviation, as wrong fonts, as wrong font extension, as false special characters or Accents or other classify This can cumulatively or alternatively an assessment by the examiner be facilitated Similarly, in conjunction with a suspicion Unterdruckung also different tolerances for the individual classes of possible suspicion or possible errors are recognized In this regard, for example, a large overprint but only a small Color deviations are allowed, so that only above the threshold or tolerance value lying suspected sites displayed and the permissible deviations are hidden or already evaluated in advance as good

[35] It is understood that such a suspected site investigation, such a suspicion classification and also such suspicion site suppression is also independent of the other features of the present invention, in particular also independent of the number of benefits, is advantageous

Preferably, after a suspicion site determination, the actual assessment takes place, in which the status of a determined suspicion site is defined as an error location or as a good location, wherein means are preferably provided for identifying a suspected location as an error location or as a credit institution. In the present context, the term designates "Labeling" means an assessment of a suspected suspected listing and an affixed rating of the assessed suspected holding to a mark corresponding to that score

[37] Through this division of the evaluation process, the testing or evaluation process can be carried out in a much more concentrated and therefore more reliable manner. It goes without saying that the actual test, that is the evaluation of a Suspicion as a defect or good body also automatically, that is, by using appropriate evaluation algorithms, can be done, which at the present time, a rating is preferably carried out by humans The advantages of the above-mentioned division of responsibilities, however, can be found in both cases

[38] Preferably, the suspicion site determination module summarizes suspicious pixels located close to one another to form a suspected site. This can be done, for example, by combining defective pixels that adjoin one another or that are within a defined tolerance range to form a suspicion site

[39] Such an approach makes it possible to correlate closely adjacent pixels that differ between template and benefit, allowing these pixels to be evaluated in a single step, making the test faster and more efficient

[40] Preferably, suspicion sites can be activated or addressed via the input. Such an activation or response can then be used to carry out certain operations only for this suspicion site. For example, a mark can be made as a good or fault location for a suspected site so addressed, if one accordingly It is also possible to scroll from an activated suspicion site to a non-activated suspicion site by activating this, until then not activated suspicion site, while deactivating the previously activated suspicion site low rating of the individual suspected points and thus increases the reliability and efficiency of the audit

[41] On the other hand, by means of suitable measures, it is also possible optionally to activate several suspected sites, so that, for example, in the case of a "serial error", ie in the case of a recurring error, the corresponding suspected sites are activated simultaneously can be edited or evaluated This reduces the cost of such "serial errors" considerably

[42] It is understood that such an activation or addressing of suspected sites independent of the other features of the present invention is advantageous to reliably and with the highest efficiency to check a print result

A corresponding activation can also be made for windows, for example for the windows of use but also for a window for a detailed view or a window for a template, so that without further operations for these windows carried out operations or from one window to the next window jumped and this next window can be activated

[44] Preferably, the benefits are marked in the notification according to the status of their suspected offenses. This can be done, for example, in such a way that a benefit that does not have any suspected or good offices is marked as good. Accordingly, a benefit can be used that has not yet been assessed for a suspicious activity are marked as unvaluated, while a benefit that includes at least one flaw can be marked as flawed. In this way, the auditor gains an immediate overall view of all the benefits

[45] It is true that any suitable type of presentation can be selected for the marking which conveys the corresponding information to a person. However, a consistent representation is selected for the suspicion sites - and for the usage marking, for example red for defective benefit or defect sites, green for good use respectively Good offices and orange for unweighted suspicions or benefits that include an unrated suspected lot

[46] As already indicated above, the device according to the invention can have a zoom mode in which several benefits are partially and with almost identical This enables an efficient comparison of a specific point in different uses, in particular in order to be able to efficiently determine a possible source of error

[47] In addition, it is advantageous if the display comprises at least one multifunctional window which optionally displays a multiplicity of uses or their cutouts, a single, active use or the template. Thus, detailed representations of a benefit are available via this multifunctional window or by means of a template, by means of which corresponding areas of the same can be checked in the same way. Comparative overviews can also advantageously be obtained by the possibility of presenting a multiplicity of uses or their sections

Preferably, a visualization of the work progress in the benefit selection in this way, an auditor can see how far the automatic work processes for benefit selection have progressed, so he can bridge a relevant waiting time suitable

[49] Depending on the performance of the devices used, it may be advantageous to make a suspect rating already during the selection. However, since a suspect rating is usually more time-consuming than a benefit selection, both procedural steps preferably follow independently of each other, so that the benefit selection can proceed faster, as the suspicion site investigation

[50] Such an approach proves to be advantageous on the whole because the auditor can already start with the verification of identified suspicion sites, and a first benefit in terms of Verdachtstellenermittlung is processed Since such a review is usually the most time-consuming step, reduced to this The total working time, since this evaluation can be started at the earliest possible time [51] At this point it should be pointed out again that such an approach is only possible with an early selection of the individual benefits from a rapport, in which the rapport disassembled at least in terms of the ad and in terms of addressing individual benefits on the indication in individual benefits before waiting for a benefit assessment, otherwise the data processing engine will wait us until a first evaluation has been made before benefit selection can occur.

[52] By separating the process steps, in particular by separating the benefit selection from the remaining process steps, the efficiency of the pressure test specimen is thus considerably increased. Accordingly, it is advantageous if the work progress is visualized accordingly also in the suspicion assessment or in the suspicion site determination. In this regard, in particular, the representation can be made consistent with the suspicion mark or benefit marking, so that, for example, the status is displayed correspondingly on a bar to represent the work progress, for example in identical colors. In particular, a corresponding visualization can also have active areas, by the activation of which certain operations are started. For example, by clicking on a certain area of the work progress visualization, a corresponding benefit can be activated.

[53] A corresponding visualization can be done, for example, by a bar or a partial disc or the like, which is divided with increasing progress of the suspicion site determination according to the number of processing in the suspicion site determination benefits. Each benefit can then be assigned a corresponding part of the work progress visualization. Accordingly, then a color choice can be made in which, for example, a corresponding part is marked in orange, if a certain benefit still has unweighted suspected sites. Likewise, a corresponding representation may also be used for benefits assessed as good or Careful valued benefits are provided to the appropriate parts of the work progress visualization

[54] Accordingly, a consistent representation of at least two categories of the categories from marked suspicion sites, designated suspected sites, marked benefits of the visualization of the work progress in a suspicion assessment can advantageously be carried out. Such a consistent representation can in particular relate to a color choice or a hatch audible markings are suitably chosen to be consistent. Likewise, other types of representations are preferably suitable for transmitting the corresponding information in a consistent manner

It is understood that such a visualization of the work progress can also be used independently of the other features in an examination of printed results advantageous when an overview of several benefit or suspicion points is advantageous, so quickly and reliably even selectively from a In addition, such an overview makes it possible to estimate the personal working time required, which benefits the well-being of an examiner and thus also advantageously influences the test result

[56] In addition, it is cumulative or alternatively advantageous if the benefits to be tested or the corresponding template are displayed against a dark background. This way, the attention of an examiner is directed to the areas of the advertisement to be examined. In addition, it is cumulative or alternatively advantageous if signal colors, in particular uniform but not too bright signal colors, are used for marking suspected sites or their identification and for marking or visualizing the progress of work, so that the examiner obtains or retains a good overview In addition, a testing device according to the invention may preferably have a toggle mode, in which at least two windows or at least one utility and one template or another utility can be displayed one above the other and alternately in the foreground. By jumping fast between the background and the foreground, a viewer can possibly recognize differences better, so that finding particularly small suspicion points and their evaluation can be facilitated

[58] After completion of the evaluation - under given circumstances, however, also before - preferably the issue of a protocol with the respective evaluation of the suspected places in a concrete embodiment can cumulatively or alternatively be ensured that all determined determined suspicion places evaluate and examined by an examiner It is understood that such a protocol, which documents or ensures the reliability of the test carried out even under difficult operating conditions, is also advantageous for print image control independently of the other features of the present invention

In addition, a bar code check can be provided This can be designed in particular so that all benefits are checked for the existence of barcodes and - in the event that barcodes are found - their readability is checked Since barcodes usually the corresponding code also In an alphanumeric form, the correct contents of the barcode can also be checked by means of a character recognition. Deviations can then be output as suspicion or error points. Under certain circumstances, the substantive check can also be performed by comparing the respective barcode with a separately entered check digit Such barcode checking, if necessary including a substantive examination, is also advantageous independently of the other features of the present invention Preferably, a scanner is checked for contamination before or after the reading in of a repeat. For this purpose, a corresponding module of the checking device can be used which, for example, initiates a scanning process at given times and first checks whether there is still a repeat in the scanner If this is not the case, deviations from an empty space are searched for and communicated as soiling. In this way, it can be ensured that the number of suspected sites, which are merely determined by the checking process, are based on a Minimum is lowered, which is advantageous regardless of the other features of the present invention

[61] It is understood that the advantages listed above, regardless of the printing process, are particularly advantageous for rapports with many benefits. In particular, inline testing, if appropriate also of all printed uses, can be carried out, which is especially true for serial printing devices such as thermal or inkjet printers is advantageous, since in this regard linear and spontaneous failures are to be feared, which are rather rare in sequential pressure processes

[62] Further advantages, objects and features of the present invention will be set forth with reference to the drawing explained below, in which an example of a method sequence and a display of a testing device according to the invention is shown in detail in the drawing

FIG. 1 shows a schematic process sequence of an inventive test method,

FIG. 2 shows a display or a section before the benefit selection,

FIG. 3 shows a display or a detail for the comparison of benefits with a representation of the entire repeat, FIG. 4 shows a display or a section for the comparison of benefits with a representation of a selected label,

FIG. 5 shows a display or a section for the comparison of benefits with a representation of the template,

6 shows a display or a section for the comparison of benefits with a representation with a detail view of the repeat

According to the method sequence shown schematically in FIG. 1, a repeat is first recorded in the present exemplary embodiment. For example, it can only be scanned in. Subsequently, the benefits located on this repeat are selected, for example via a pattern identifier with recurring patterns to aid a certain tolerance threshold can be recognized on the report and recorded in such a way that the benefits are available as individual objects but as a whole to the corresponding data processing system. The corresponding template can be recorded in parallel. This can originate from an electronic file. On the other hand, it can also be scanned It is also possible to use one of the selected benefits as a template, as shown by the dashed arrow

[64] Once this preparatory work has been completed, the data processing system can compare the benefit and the template and, as explained in detail below, suspicious and faulty areas are marked and evaluated

FIG. 2 shows a display or a cutout 1A that can be used to scan in a repeat 3 comprising a plurality of labels 2 or to scan or load a template 30. The corresponding processes in the document can be used via corresponding fields 31, 32 and 33 hardware based on the method, such as a computer with a scanner In order to facilitate work - and in particular for the cases in which a report or a template has not been placed in a suitable orientation on a scanner - are fields 34 and 35 available, with which the orientation can be changed in each case over the field 36 stands In addition, a Bildbearbei- function, with which on the one hand removed parts of the template 30 and, with the aid of the field 37 individual, selected areas of the repeat 3 in the template page can be copied by the first obvious errors in the template, such as printing instructions or marks without The latter has the advantage that individual benefits of a report can also be used as a template for checking the remaining benefits of the report or the following reports. This reduces the influence of systematic errors, whereby the benefit used as a template is previously very high exact Ü should be subjected to a review

The field 38 has a double function. On the one hand, a template selection can be initiated via the command "Start Evaluation". This selection has not yet taken place in the representation according to FIG. 2. In this usage selection, recurring patterns in the repeat can be determined and from this the individual Benefits are detected in their position In the present embodiment, a frame is then laid around the benefits selected in this way

In a second function, the field 38 initiates a troubleshooting, in which the data processing system differences between the individual benefits and the template are determined Depending on the specific process implementation benefit selection and comparison can be done immediately behind each other and for the user as a single step It is also possible to first perform the benefit selection and then to easily and simply select a selected benefit as a template with which then the comparison is to be performed [68] During the comparison, it is preferable to switch over to a display for checking the comparison result, so that a check by the user can start immediately, even if the data processing system has not yet automatically compared all the benefits The progress of this comparison can be made, for example, by a bar or also be communicated to the user by the display only the already automatically compared benefits

[69] In FIGS. 3 to 6, a display or a detail 1 of a display, which can then be used for checking a repeat 3 comprising a plurality of labels or labels 2, and a corresponding legend 4 are shown. In the present embodiment, the repeat 3 comprises nine Labels 2 (numbered only as an example)

[70] The detail 1 has an overview window 5 as well as two detailed detail windows 6, 7. Optionally, four types of representation can be selected in the overview window 5. These relate firstly to the representation of the original (FIG. 5) or the label (FIG. 4) and to Another representation of the repeat with the individual labels 2 in an overall view (this possibility is shown in Figure 3) or with an identical magnification view per label (Figure 6) Between the individual types of views can be switched over active areas 8

[71] The representations "label" or "template" that can be activated by the active areas 8 allow - due to the window 5 - a detailed examination of a particular benefit (eg use 9) or the template 40. By a quick change between these two types of representation The representation as a report facilitates a complete overview, in order to be able to appropriately evaluate the test result or the progress of the test. In this case, in particular representation in magnification is advantageous in order to a To be able to look at certain fault points comparatively on several benefits without further effort and in a particularly clear way

In the window 6, a detail of the template is shown, while in the window 7 a detail of the Uberprufüngfettsiketts is shown In the present embodiment, a detail of the label 9 is shown in the window 7. The enlargements in the windows 6 and 7 as well as the relative positions of the detail enlargement are selected identically in windows 6 and 7, so that a corresponding suspicious place can be checked clearly.

[73] The present presentation corresponds to a procedural situation in which a repeat has already been scanned and the benefits 2 of the repeat 3 have been selected. In addition, a suspicious location identification has already been carried out at least partially, whereby suspicion places have been identified in the labels 9, 10 and 11 In this case, a certain assessment of the suspicious location - insofar as it can be carried out by a data processing system - was carried out, in that register fluctuations and squeezing margins were not marked as suspected places, provided that they are below a certain tolerance threshold. Alternatively, it is possible to mark such tolerable errors as suspicion points and automatically to be marked as credit points Missing letters or parts of letters, accrued letters, smeared text passages, missing inks, stains and color deviations are detected as relevant suspect points. Wrong fonts, too, can be incorrect Bold print, changed font extensions or missing special characters or accents are recognized

In some cases, the identified suspicion 12, 13 and 14 have already been evaluated in the present embodiment by a human examiner This is regarding the suspicion 12 of the label 11 as a fault by means of the mark 15 and at the suspicion point 13 of the label 10 as a good place by means of Mark 16 The suspicion 14 of the label 9, however, is marked with a mark 17 as not yet evaluated

[75] As can be seen in the figures, the same marking is also found as the border of the window comprising the respective labels, so that this marking is shown clearly to a user

A corresponding marking is also found in the window 7, which represents the suspicion point 14 of the label 9 in the present exemplary embodiment. In this embodiment, the label 9 is active and can be characterized as good or defective by manipulating the fields 18 and 19, respectively As soon as a corresponding marking has been made, this is indicated by a corresponding marking of the windows 7 and 9 as well as the suspicion mark of the suspicion place 14

The section 1 can be operated by means of a mouse, not shown but generally known, through which the fields 8, 18 or 19 or the windows 5, 6, 7 or the windows of the individual use, individual suspicion points or scroll fields 20, 21 In this case, the scroll fields 20 are used to jump from one benefit 2 to the next, with the next benefit being activated. The fields 21 allow one to jump from one suspicion point to the next suspicion point, with optionally also a jump to the first suspicion point or to the last suspicion or a jump to the first suspicion of a currently active benefit can take place

Claims

claims

1 Method for checking print results, in which first a report is recorded, then selects benefits located on the repeat and the selected benefits are compared with a template

2 Method according to claim 1, characterized in that the comparison of the selected benefits with the template is carried out according to the benefit selection

3 The method of claim 1 or 2, characterized in that for the benefit selection a benefit detection is performed

4. Method according to claim 1, characterized in that individual areas of the repeat that are not checked or made available to a checker for a check

5 Method according to one of claims 1 to 4, characterized in that the selected benefits are displayed scaled, preferably when the scaling of the utility related scaling components, such as rotation tion, translation and distortion components, below a threshold

6 The method according to any one of claims 1 to 5, characterized in that the number of benefits of the repeat and its position is determined with the benefit selection

7 The method according to any one of claims 1 to 6, characterized in that with the benefit selection, the individual benefits are displayed in separate windows

8. The method according to any one of claims 1 to 7, characterized in that the template can be displayed in a separate window

9. The method according to any one of claims 1 to 8, characterized in that a selected benefit is selected as a template.

10. The method according to any one of claims 1 to 9, characterized in that the template is read from a graphics file.

1 1. A method according to any one of claims 1 to 10, characterized in that for reading a template subjected to a template graphic file of a pattern recognition and in this case the template is detected.

12. The method according to claim 11, characterized in that in the pattern recognition a template surrounding the frame is detected.

13. The method according to any one of claims 1 to 12, characterized in that for the comparison between utility and template a suspicion site determination is performed.

14. The method according to claim 13, characterized in that suspected places are marked in the suspicion site determination.

15. The method according to claim 14, characterized in that prior to the marking of suspected sites close together, suspicious pixels are summarized to a suspicion site.

16. The method according to any one of claims 13 to 15, characterized in that for at least one, preferably each suspicion then a status is defined as a fault or good location.

17. The method according to any one of claims 13 to 16, characterized in that a benefit is marked according to the status of its suspected places. Method according to one of claims 13 to 17, characterized in that the suspicion site identification comprises a suspicion classification

Method according to one of claims 13 to 18, characterized in that the suspicion site detection comprises a suspicion site under pressure of determined suspected sites with certain properties

Method according to one of claims 1 to 19, characterized in that after completion of the evaluation, the output of a log with the respective evaluation of all identified suspected or all suspected classified sites takes place

Method according to one of claims 1 to 20, characterized in that all determined suspected sites must be evaluated before a log printed or the test can be terminated otherwise

Method according to one of claims 1 to 21, characterized in that a Bildfassungsgerat is checked before or after reading a rapport for contamination

Method according to one of claims 1 to 22, characterized by a continuous test in the machine during the printing

Apparatus for checking printed results with an image acquisition device, a data processing device and a user interface with at least one display and one input, characterized by a utility on a scanned report benefit comprising pattern recognition for selecting the benefits of the repeat

Apparatus according to claim 24, characterized by means for displaying the recognized benefits in separate windows of the display Apparatus according to claim 24 or 25, characterized by means for displaying a template in a separate window of the display

Apparatus according to claim 26, characterized by means for performing an operation when a window is addressed via the input

Device according to one of Claims 24 to 27, characterized by a document recognition module

Apparatus according to claim 28, characterized in that the template recognition module comprises a frame recognition

Device according to one of claims 24 to 29, characterized by a suspect detection module

Apparatus according to claim 30, characterized in that the suspicion-determining module summarizes close together, suspicious pixels to a suspicion site

Apparatus according to claim 30 or 31, characterized in that the suspicion site determination module provides suspicion points in the display with a suspicion mark

Apparatus according to claim 32, characterized by means for performing an operation when the entry is used to address a suspect location mark

Device according to one of claims 30 to 33, characterized by means for identifying a determined suspicion site as a fault and / or as a credit institution Device according to one of claims 30 to 34, characterized by means for activating a suspected site

Apparatus according to claim 35, characterized by means for scrolling from an activated suspicion point to a non-activated suspicion point or from an activated window to a non-activated window

Device according to one of claims 30 to 36, characterized by means for marking a benefit according to the status of the suspected sites of this benefit

Device according to one of claims 30 to 37, characterized by means for suspicion point suppression of determined suspected sites with certain properties

Device according to one of claims 24 to 38, characterized by a zoom mode in which a plurality of benefits can be displayed partially and with a nearly identical section

Device according to one of claims 24 to 39, characterized by at least one multifunctional window which optionally represents a plurality of benefits or excerpts of utility, an active use or the template

Device according to one of claims 24 to 40, characterized by a visualization of the work progress in the benefit selection

Device according to one of claims 24 to 41, characterized by a visualization of the work progress at a suspicion site determination

Device according to one of claims 24 to 42, characterized by a visualization of the work progress at a suspicion rating Device according to one of Claims 24 to 43, characterized by a consistent presentation of at least two categories of the categories from marked suspicion sites, designated suspicion sites, marked benefits and the visualization of the work progress in a suspicion assessment

Device according to one of claims 24 to 44, characterized by a dark background behind windows for use and / or presentation

Device according to one of claims 24 to 45, characterized by signal colors for marking suspicion points, benefits or windows

Device according to one of claims 24 to 46, characterized by a toggle mode, in which at least two windows or at least one utility and a template or a further utility can be shown one above the other and alternately in the foreground

Device according to one of Claims 24 to 47, characterized by a barcode check

Apparatus according to claim 48, characterized by a substantive examination of the barcode

Device according to one of claims 24 to 49, characterized by a Prufmodul which checks the Bildfassungsgerat for contamination

Device according to one of claims 24 to 50, characterized by a scanner

Device according to one of claims 24 to 51, characterized by a line camera