CN109383152B - Data manuscript processing method and digital proofing method using same - Google Patents
Data manuscript processing method and digital proofing method using same Download PDFInfo
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- CN109383152B CN109383152B CN201710650862.2A CN201710650862A CN109383152B CN 109383152 B CN109383152 B CN 109383152B CN 201710650862 A CN201710650862 A CN 201710650862A CN 109383152 B CN109383152 B CN 109383152B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0058—Digital printing on surfaces other than ordinary paper on metals and oxidised metal surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/001—Texturing; Colouring; Generation of texture or colour
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Abstract
The invention discloses a data manuscript processing method, which comprises the following steps: printing a color target by using a printing machine, and acquiring and generating a standard color space by using a color management system; calculating the printing parameters of the digital proofing machine by using a color management system according to the printing parameters of the printing machine and the ink-jet parameters of the digital proofing machine; printing a color target according to the parameters, and acquiring and generating a digital proofing color space again; comparing the digital proofing sample with a standard color space, and if the digital proofing sample meets a color difference standard, generating a digital proofing characteristic file by using a color management system; if not, adjusting the digital proofing space; and processing the data manuscript according to the digital proofing feature file, adjusting the resolution of the data manuscript to enable the resolution to be in accordance with a resolution standard, and generating a final data manuscript. The invention discloses a digital proofing method, which comprises the following steps: generating a final data original by using a data original adjusting method; and printing the final data manuscript by using a digital proofing machine to generate a digital sample.
Description
Technical Field
The invention belongs to the technical field of tinplate printing, and particularly relates to a data manuscript processing method and a digital proofing method using the data manuscript.
Background
Before a printer is used for producing tinplate in large batch, a tinplate printing sample is firstly manufactured, and a flat proofing machine is mainly used in the industry to carry out circulating monochromatic printing on the tinplate for many times, and the method specifically comprises the following steps: firstly, the data manuscript is subjected to color separation, a needed monochromatic printing plate of each color is manufactured, and a manually operated monochromatic flat proofing press is used for carrying out monochromatic printing on each color respectively to obtain a complete tinplate printing sample. However, the single-color flat proofing machine has many proofing processes, many human influence factors, unstable proofing quality and long proofing period, and is difficult to meet the rapid and variable requirements of customers.
The output accuracy of the current UV ink-jet printer is generally not more than 1400dpi, and the output accuracy of the tinplate printing publishing system is 2400dpi at most. Because the printing precision of the UV ink-jet printer or other digital proofing machines is lower than the output precision of a tinplate printing and publishing system, the lines of the pictures and texts output on the tinplate by using the digital proofing machine become thick and obvious, the resolution ratio of the pictures and texts cannot meet the requirement of the required resolution ratio, and the difficulty is caused to sample tracing before batch printing.
There is a need for a method for processing a data manuscript to adjust the data manuscript, so that the data manuscript printed by using a digital proofing machine can meet the requirements of accuracy and color for printing a tinplate sample, and meanwhile, the method can also be used for printing high-accuracy digital samples on other materials.
Disclosure of Invention
In order to solve the above problems, the present invention provides a data manuscript processing method, which provides a data manuscript meeting the requirement of digital proofing; the invention aims to provide a digital sample printing method which has high efficiency of manufacturing digital samples and stable quality of the manufactured digital samples.
In order to achieve the purpose, the invention is realized according to the following technical scheme:
the invention provides a data manuscript processing method, which comprises the following steps:
step 1: printing a color target by using a printing machine, and collecting and generating a standard color space by using a color management system;
step 2: calculating the printing parameters of the digital proofing machine by using the color management system according to the printing parameters of the printing machine and the ink-jet parameters of the digital proofing machine;
and step 3: the digital proofing machine prints the color target by using the calculated printing parameters, and the color management system is used for collecting and generating a digital proofing color space;
and 4, step 4: comparing the digital proofing space generated in the step (3) with the standard color space, and if the digital proofing space meets the color difference standard, generating a digital proofing characteristic file by using the color management system; if not, readjusting the digital proofing space;
and 5: and processing the data manuscript according to the digital proofing feature file, adjusting the resolution of the data manuscript to enable the resolution to be in accordance with a resolution standard, and generating a final data manuscript.
Preferably, step 4 comprises:
step 41: comparing the standard color space with the digital proofing color space by using the color management system, and judging whether the standard color space meets the color difference standard, if not, executing step 42, and if so, executing step 43;
step 42: generating an adjusted digital proofing color space by using the color management system according to the standard color space, printing the color target by using the adjusted digital proofing color space and generating a new digital proofing color space, and executing step 41 again;
step 43: and generating a digital proofing property file by using the color management system.
Preferably, step 5 comprises:
step 51: processing the data manuscript according to the digital proofing feature file, and adjusting the resolution of the data manuscript;
step 52: comparing the resolution of the data manuscript printed by the printer with the resolution of the data manuscript printed by the digital proofing machine, judging whether the resolution accords with the resolution standard, if not, executing the step 53, and if so, executing the step 54;
step 53: readjusting the resolution of the data original, and executing step 52;
step 54: and setting the data manuscript meeting the resolution standard as a final data manuscript.
Preferably, the printing parameters include ink density and dot gain values, and the jetting parameters include total ink limit table and linearized color table.
Preferably, the color target is a test board of IT8.7/3 test chart and a step scale.
Preferably, the color difference standard is as follows: and comparing the standard color space with the digital proofing space, wherein the maximum color difference delta E of the color blocks of the standard color space and the digital proofing space is less than or equal to 5.
Preferably, the color difference standard is as follows: and comparing the standard color space with the digital proofing space, wherein the average color difference delta E of all color blocks of the standard color space and the digital proofing space is less than or equal to 2.
Preferably, the color difference standard is as follows: and comparing the standard color space with the digital proofing space, wherein the proportion of color blocks with the color difference delta E of less than or equal to 3 to the total color blocks is more than or equal to 85 percent.
Preferably, the resolution criteria are: and printing the data manuscript by using a printer and printing the adjusted data manuscript by using a digital proofing press, and comparing lines with the same line width, wherein the width difference of the two lines is less than or equal to 0.05 mm.
The invention relates to a digital proofing method, which comprises the following steps:
step 1: generating a final data manuscript by using the data manuscript adjusting method;
step 2: and printing the final data manuscript by using a digital proofing machine to generate a digital sample.
Compared with the prior art, the invention has the beneficial effects that: and according to the standard color space, continuously comparing and adjusting by using a color management system, and continuously adjusting the resolution of the data manuscript to generate a final data manuscript meeting the requirement. By the method of continuous adjustment, the data manuscript meeting the requirement is generated, and the qualified high-precision digital sample can be directly printed by using the digital proofing machine, so that the using requirement is met.
The digital proofing machine is used for directly printing on the tinplate, the required color can be printed at one time compared with the prior art, and the working efficiency of making the tinplate sample is greatly improved compared with a manually operated monochromatic flat proofing machine.
Drawings
Embodiments of the invention are described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a flow chart of a digital proofing method of the present invention;
fig. 2 is a dot-line plot of printer versus inkjet printer.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, the data document processing method according to the present invention includes the steps of:
step 1: a printer is used to print the color targets and a color management system is used to collect and generate the standard color space. Using tinplate which is normally used in production as a printing stock, adjusting the pressure, the water quantity and the ink quantity of a printing machine, and printing a color target to generate a standard color space used as a contrast standard;
as an example, color target 1 is a test board for IT8.7/3 test chart and step scale. IT8.7/3 is an industry standard specially prepared for a printing machine or a color output machine, a chart of the chart is composed of 182 basic color block values and 928 professional color block values, and the IT8.7/3 test chart and a test board of a step scale are used as color targets, so that the printing quality of a digital proofing machine and the printing machine is compared, the printing quality of the digital proofing machine and the printing machine contains enough color blocks, and the requirement of sample sheet production can be met.
The color management system is an X-Rite Eye-On One-Eye color management system, the X-Rite Eye-On color management system can create and edit a color configuration file of equipment, then the color configuration file is applied to an application program or other color equipment, and the color configuration is conveniently added into an operation flow, so that a digital proofing machine can quickly print the color configuration to a digital sample.
Step 2: and calculating the printing parameters of the digital proofing machine by using a color management system according to the printing parameters of the printing machine and the ink-jet parameters of the digital proofing machine.
In this embodiment, the printing parameters include ink density and dot gain values, and the inkjet parameters include a total ink limit table and a linearization table, as shown in fig. 2, after determining the maximum ink volume and dot gain values of the digital proofing machine, the printer is linearly related to each tone output by the digital proofing machine.
And step 3: and printing a color target according to the maximum ink quantity and the dot gain value of the digital proofing machine, and generating a digital proofing color space by using a color management system.
And 4, step 4: continuously comparing and adjusting the digital proofing color space by using a color management system according to the standard digital space to enable the digital proofing color space to meet the color difference standard, and generating a digital proofing characteristic file by using the color management system; step 4 further comprises:
step 41: comparing the standard color space and the digital proofing color space by using a color management system, judging whether the standard color space and the digital proofing color space meet the color difference standard, and if the standard color space and the digital proofing color space do not meet the color difference standard, executing the step 42; if yes, go to step 43;
step 42: generating an adjusted digital proofing space by using a color management system according to the standard color space, printing a color target by using the adjusted digital proofing space, generating a new digital proofing space, and executing the step 41 again;
step 43: a digital proofing profile is generated using the color management system 2.
By adopting the method for repeatedly adjusting the digital proofing space, the color of the digital sample printed by adopting the digital proofing space is close to the color of actual production as much as possible, so that the manufactured digital sample can fully play the role of the sample.
In this embodiment, the color difference criterion is:
1. comparing the standard color space with a digital proofing color space obtained by printing a color target by using a digital proofing machine, wherein the maximum color difference delta E of color blocks with the same color of the standard color space and the digital proofing color space is less than or equal to 5;
2. comparing the standard color space with a digital proofing color space obtained by printing color targets by using a digital proofing machine, wherein the average color difference delta E of all color blocks of the standard color space and the digital proofing color space is less than or equal to 2;
3. comparing the standard color space with the digital proofing color space obtained by printing a color target by using a digital proofing machine, wherein the proportion of color blocks with the color difference Delta E less than or equal to 3 in the total color blocks is more than or equal to 85%.
The color quality of the digital proofing color space is checked by adopting a color difference standard, so that the digital proofing performed by using the digital proofing color space is close to the color produced by using a normal process as much as possible, and the quality of the digital proofing is ensured.
And 5: and processing the data manuscript by using the digital proofing property file, and modifying the resolution of the data manuscript to enable the resolution to be in accordance with a resolution standard, thereby generating a new data manuscript. Step 5 further comprises:
step 51: processing the data manuscript according to the digital proofing feature file, and adjusting the resolution of the data manuscript;
step 52: comparing the resolution of the data manuscript printed by the printer with the resolution of the data manuscript printed by the digital proofing press, judging whether the resolution accords with the resolution standard, and if not, executing the step 53; if yes, go to step 54;
step 53: readjusting the resolution of the data original, and executing step 52;
step 54: setting the data manuscript meeting the resolution standard as a final data manuscript;
by adopting the method for repeatedly adjusting the data manuscript resolution, the resolution printed by adopting the digital proofing space can be as close as possible to the resolution printed by using a printer in actual production, so that the manufactured digital sample can fully play the role of a sample.
In this embodiment, the resolution criteria are: and printing the data manuscript by using a printer and printing the adjusted data manuscript by using a digital proofing press, and comparing lines with the same line width, wherein the width difference of the two lines is less than or equal to 0.05 mm.
The resolution of the data manuscript is adjusted, so that the resolution of the adjusted data manuscript is increased, the resolution of the adjusted data manuscript printed by using the digital proofing machine is also increased, and the digital sample printed by using the digital proofing machine meets the requirement of the resolution.
After the final data original is created by using the original adjustment method, the final data original is printed by using a digital proofing machine to create a digital sample. As an example, the final data original is printed on a tin plate using an inkjet printer to produce a tin plate sample.
The method comprises the steps of firstly printing a standard IT8.7/3 color target 1 by using a printer, generating a standard color space by using an X-Rite Eye-On color management system, continuously adjusting a digital proofing color space by using the color management system according to the standard color space to enable the digital proofing color space to meet a color difference standard, then printing a digital manuscript by using the printer as the standard, continuously adjusting the resolution of the digital manuscript to generate a final digital manuscript meeting the resolution, and finally printing the final digital manuscript by using an ink-jet printer to generate a tinplate sample. The tinplate sample generated by the method has high working efficiency and stable color control, the resolution can meet the requirement, and the required final data manuscript can be quickly generated after the data manuscript required to be printed is adjusted by a client, so that the client requirement can be quickly responded, and the complex and variable market requirements can be met.
Other structures of the digital proofing method applied to tinplate in this embodiment are referred to in the prior art, and are not described herein again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. A data original processing method characterized by: the method comprises the following steps:
step 1: printing a color target by using a printing machine, and collecting and generating a standard color space by using a color management system;
step 2: calculating the printing parameters of the digital proofing machine by using the color management system according to the printing parameters of the printing machine and the ink-jet parameters of the digital proofing machine;
and step 3: the digital proofing machine prints the color target by using the calculated printing parameters, and the color management system is used for collecting and generating a digital proofing color space;
and 4, step 4: comparing the digital proofing space generated in the step (3) with the standard color space, and if the digital proofing space meets the color difference standard, generating a digital proofing characteristic file by using the color management system; if not, readjusting the digital proofing space;
and 5: and processing the data manuscript according to the digital proofing feature file, adjusting the resolution of the data manuscript to enable the resolution to be in accordance with a resolution standard, and generating a final data manuscript.
2. A data original processing method according to claim 1, characterized in that: step 4 comprises the following steps:
step 41: comparing the standard color space with the digital proofing color space by using the color management system, and judging whether the standard color space meets the color difference standard, if not, executing step 42, and if so, executing step 43;
step 42: generating an adjusted digital proofing color space by using the color management system according to the standard color space, printing the color target by using the adjusted digital proofing color space and generating a new digital proofing color space, and executing step 41 again;
step 43: and generating a digital proofing property file by using the color management system.
3. A data original processing method according to claim 1, characterized in that: the step 5 comprises the following steps:
step 51: processing the data manuscript according to the digital proofing feature file, and adjusting the resolution of the data manuscript;
step 52: comparing the resolution of the data manuscript printed by the printer with the resolution of the data manuscript printed by the digital proofing machine, judging whether the resolution accords with the resolution standard, if not, executing the step 53, and if so, executing the step 54;
step 53: readjusting the resolution of the data original, and executing step 52;
step 54: and setting the data manuscript meeting the resolution standard as a final data manuscript.
4. A data original processing method according to claim 1, characterized in that: the printing parameters include ink density and dot gain values, and the jetting parameters include total ink limit table and linearized color table.
5. A data original processing method according to claim 1, characterized in that: the color target is an IT8.7/3 test chart and a test board of a step scale.
6. A data original processing method according to claim 1, characterized in that: the standard of the chromatic aberration is as follows: and comparing the standard color space with the digital proofing space, wherein the maximum color difference delta E of the color blocks of the standard color space and the digital proofing space is less than or equal to 5.
7. A data original processing method according to claim 1, characterized in that: the standard of the chromatic aberration is as follows: and comparing the standard color space with the digital proofing space, wherein the average color difference delta E of all color blocks of the standard color space and the digital proofing space is less than or equal to 2.
8. A data original processing method according to claim 1, characterized in that: the standard of the chromatic aberration is as follows: and comparing the standard color space with the digital proofing space, wherein the proportion of color blocks with the color difference delta E of less than or equal to 3 to the total color blocks is more than or equal to 85 percent.
9. A data original processing method according to claim 1, characterized in that: the resolution standard is as follows: and printing the data manuscript by using a printer and printing the adjusted data manuscript by using a digital proofing press, and comparing lines with the same line width, wherein the width difference of the two lines is less than or equal to 0.05 mm.
10. A digital sampling method, comprising the steps of:
step 1: generating a final data original using a data original adjustment method according to any one of claims 1 to 9;
step 2: and printing the final data manuscript by using a digital proofing machine to generate a digital sample.
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| BRPI1007111A2 (en) * | 2009-04-28 | 2018-02-20 | Sun Chemical Corp | method of producing a print on a substrate or article; printed image; method of printing an image containing mixed colors and / or logos on a substrate printing system and article |
| CN102307273A (en) * | 2011-05-31 | 2012-01-04 | 武汉大学 | Digital proofing quality evaluation method based on visual inspection, International color consortium (ICC) standard and custom standard |
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