CN111459423A - Method for determining optimal borrowing position of printing plate combination by using pixel collision method - Google Patents
Method for determining optimal borrowing position of printing plate combination by using pixel collision method Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1202—Dedicated interfaces to print systems specifically adapted to achieve a particular effect
- G06F3/1203—Improving or facilitating administration, e.g. print management
- G06F3/1208—Improving or facilitating administration, e.g. print management resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
- G06F3/1237—Print job management
- G06F3/1242—Image or content composition onto a page
Abstract
The invention discloses a method for determining an optimal borrowing position for printing plate combination by using a pixel collision method, which finds an optimal borrowing position for typesetting by using the pixel collision method from the shape and the size of a plate combination file of each element in the printing plate combination process, and has the following beneficial effects that: 1. designing a method for determining the optimal borrowing position of printing plate combination by using a pixel collision method, wherein in the whole plate combination optimization process, the maximum borrowing (four-direction searching) of each row of plate combination files is determined by using a digitization technology and a programming technology before pixel collision plate combination, and the pre-evaluation of the file plate combination occupation domain value is carried out; 2. and respectively colliding the four directions of each file according to a certain angle rotation in a pixel collision process, such as a 90-degree rotation angle, and respectively staggering the second typeset file in the horizontal direction and the vertical direction until the optimal staggered position of the combined version of the two files is found and ensured.
Description
Technical Field
The invention belongs to the technical field of printing and typesetting processes, and particularly relates to a method for determining an optimal borrowing position of a printing and typesetting by using a pixel collision method.
Background
As a relatively emerging printing operation mode, a plate combination factory can stand all over the land and rise rapidly, and in the Internet era, plate combination printing is endowed with new significance. The method obtains great scores by taking internet innovation as an entry point, and gradually becomes a benchmarking innovation point for internet application in the printing industry. For example, high efficiency is achieved, and the plate-fitting printing brings incomparable high efficiency by virtue of the progress of software technology and internet technology, and the cost advantage brought by the leap in efficiency, which also makes it inherently possess traits more suitable for the internet, so that the rapid development is achieved, the layout combination printing probably looks not beautiful, and the problems exist, and are accompanied by various disputes, such as low price competition, poor quality, unreasonable layout and the like, from the inner point of view, the layout modes are more to realize the layout area of each layout file, then the layout combination is arranged in sequence, the shape of each layout file is not considered at all, so that much space is wasted in the layout process, the layout effect is poor, a method for determining the optimal borrowing position of the printing layout by using a pixel collision method is designed at present, and the optimal borrowing position is found by using the pixel collision method for layout from the size of the layout file shape of each element.
Disclosure of Invention
In view of the existing problems, the invention aims to provide a method for determining the optimal borrowing position of printing plate combination by using a pixel collision method.
The technical scheme adopted by the invention for solving the technical problems is as follows: in the printing and layout combining process, starting from the shape and size of the layout combining file of each element, an optimized borrowing position is found by using a pixel collision method for typesetting, and the whole process of determining the optimal borrowing position of the printing and layout combining by using the pixel collision method comprises the following steps:
step one, file Matrix digitization, namely newly building a canvas, converting a PDF format version file into a PNG format file according to a ratio of 1:1 to carry out pixel Matrix dereferencing, and digitizing the file (defining an m × n Matrix, wherein Matrix (i, J) represents and takes out the ith row and the jth column of the Matrix a, Matrix (J) represents and jth column of data, and Matrix (i, i) represents and ith row of data);
secondly, performing image binarization on the file in the PNG format, namely representing the file in 0 and 1, representing a blank area in 0 and representing a content area in 1 to obtain a file outline, (wherein if the pixel color value is β, the pixel color threshold value α is 0, if β - α is 0, the pixel is determined as the blank area, the pixel is represented by 0, if β - α is more than 0, the pixel is determined as the content area, and the pixel is represented by 1);
step three, judging the maximum borrowing of the file: taking values from four directions of the file according to the image binarization matrix respectively, if the value is 0, taking the value till 1, storing each row of the values as a borrow Array-a, calculating the number m of each Array value, taking out the maximum borrow J-max in the direction which is the borrow corresponding to the maximum m value by the same method as the maximum borrow in other directions, and then comparing and determining the maximum borrow J-max of the file; determining the maximum borrowing of each edition combination file by the method;
step four, calculating the maximum borrowing value: the borrowing value Jvi is equal to the number mi of the numerical value of the corresponding borrowing array, and the maximum borrowing value Jv-max is the number of the numerical value of the corresponding maximum borrowing array;
step five, pixel collision:
1) newly building a canvas, placing a file with the largest expansion area (one of the files is randomly selected if the expansion areas of the files are the same), placing the maximum borrow towards the right horizontal direction (or the downward vertical direction, the same method is used), then placing a second typesetting file in the horizontal direction of the first typesetting file, and aligning the top end of the second typesetting file in the horizontal direction with the top end of the first typesetting file; the method comprises the steps that the Matrix value of the rightmost line of the maximum borrowing of a first typesetting file is Matrix-a (n;), n is the width of the first typesetting file, the Matrix value of the leftmost line of the maximum borrowing of a second typesetting file is Matrix-b (i;), the second typesetting file is horizontally shifted to the left by 1 pixel, namely, the offset value m is 1, then the Matrix value Matrix-b (i-m;) of the offset value i and Matrix-a (n;), are taken, calculation of 'bitwise and' is carried out, such as Matrix-b (i-m;), & Matrix-a (n;) 1, pixel collision occurs, and the optimal borrowing of the two files in the direction is found; if not, continuing horizontal offset according to the offset value m +1, then taking the row Matrix value Matrix-b (i- (m + 1)) of the offset value m +1 from the offset +1 position in the opposite direction, carrying out bitwise AND calculation on Matrix-a (n) and Matrix-b (i- (m + 1)), counting the calculation result, and if the result is 1, generating pixel collision; then, the other three directions of the second typesetting file are respectively collided according to the method;
2) then, moving the second typesetting file by a pixel j-1 downwards in the horizontal direction compared with the top end of the first typesetting file, performing circular collision according to the collision method, determining the optimal borrowing position of the second typesetting file in four directions of moving the second typesetting file by 1 pixel downwards until the bottom end of a second typesetting file matrix is aligned with the bottom end of a file matrix, and ending the circulation;
step six, determining an optimal borrowing position: comparing offset values of the second typesetting file after collision in four directions every time, wherein the maximum collision offset value Jv-max is the optimal borrowing position, and the maximum borrowing position in the direction of the maximum collision offset value is the optimal borrowing position;
step seven, determining the optimal borrowing of the optimal file: if a plurality of files exist, the collision method is sequentially carried out, the collision results of the optimal borrowing of the files are compared, and the optimal borrowing of the optimal file is determined.
In the original layout combining process, a first layout file and a second layout file are integrated through an original layout mode, wherein the original layout mode is that each whole layout file is integrated in a fixed occupation area, and the fixed occupation areas are connected to form a large original layout occupation area; in the new layout combination process, the maximum borrowing value (four-direction searching) of each row of combined files is determined by utilizing a digitization technology and a programming technology before pixel collision, the reasonable occupation area of each file is ensured, in the pixel collision and layout combination process, four directions of every two combined files are rotated according to a certain angle to be respectively collided, pixel collision and layout combination are carried out, the optimal dislocation position of the combined layout is ensured, a new layout occupation area is formed through the pixel layout collision point of each direction, compared with the original layout occupation area in the original layout mode, the new layout occupation area obtains a certain size, and the occupation area is saved.
The invention has the following beneficial effects:
1. a method for determining the optimal borrowing position of printing plate combination by using a pixel collision method is designed, wherein in the whole plate combination optimization process, the maximum borrowing (four-direction searching) of each row of plate combination files is determined by using a digitization technology and a programming technology before pixel collision plate combination, and the pre-evaluation of the file plate combination occupation domain value, namely the maximum borrowing position value, is carried out.
2. And respectively colliding the four directions of each file according to a certain angle rotation in a pixel collision process, such as a 90-degree rotation angle, and respectively staggering the second typeset file in the horizontal direction and the vertical direction until the optimal staggered position of the combined version of the two files is found and ensured.
Drawings
FIG. 1 is a schematic diagram showing comparison before and after optimization of a method for determining an optimal borrowing position of printing plate combination by using a pixel collision method.
FIG. 2 is a block diagram of a method for determining an optimal borrowing position for printing block combination by using a pixel collision method.
FIG. 3 is a functional flow chart of a method for determining an optimal borrowing position for a printing plate combination by using a pixel collision method
FIG. 4 is an optimal borrowing schematic diagram of a method for determining an optimal borrowing position of a printing plate combination by using a pixel collision method.
1. The method comprises the steps of an original typesetting mode, 2, a first typesetting file, 3, a second typesetting file, 4, an original typesetting occupation region, 5, pixel collision combination, 6, pixel typesetting collision points, 7, a new typesetting occupation region, 8, occupation region saving, 9, a maximum borrowing value, a 10.0 value region, a 11.1 value region, 12, file outline and 13, an optimal dislocation position.
Detailed Description
The invention is further explained below with reference to the drawings and the embodiments.
As shown in fig. 3, in the method for determining an optimal borrowing position for printing plate combination by using a pixel collision method according to the embodiment of the present invention, in the printing plate combination process, starting from the shape and size of the plate combination file of each element, an optimal borrowing position is found by using the pixel collision method for typesetting, and the whole flow of the method for determining the optimal borrowing position for printing plate combination by using the pixel collision method is as follows:
the file Matrix digitization comprises the steps of newly building canvas, converting a PDF format edition file into a PNG format file according to the proportion of 1:1, carrying out pixel Matrix dereferencing, digitizing the file, (defining m × n Matrix, wherein Matrix (i, J) represents the data of the ith row and the jth column of the Matrix a, Matrix (J) represents the data of the jth column, Matrix (i, J) represents the data of the ith row)
Step two, file image binarization: carrying out image binarization on the PNG format file, namely representing the file by 0 and 1, representing a blank area by 0, namely a 0-value area (10), and representing a content area by 1, namely a 1-value area (11), so as to obtain a file outline (12);
step three, judging the maximum borrowing of the file, and combining the steps shown in the figure 4: taking values from four directions of the file respectively according to the image binarization matrix, if the value is 0, taking the value till 1, then storing the value of each row as a borrow array, calculating the number m of the value of each array, taking out the maximum borrow J-max in the direction which is the borrow corresponding to the maximum value m, taking out the maximum borrow in other directions by the same method, and then comparing and determining the maximum borrow J-max of the file; determining the maximum borrowing of each edition combination file by the method;
step four, calculating a maximum borrowing value (9): the borrowing value Jvi is equal to the number mi of the numerical value of the corresponding borrowing array, and the maximum borrowing value Jv-max is the number of the numerical value of the corresponding maximum borrowing array;
step five, a pixel collision plate combination (5) process is shown in combination with the figure 2;
1) newly building a canvas, putting a file with the largest expansion area (one of the files is randomly selected if the expansion areas of the files are the same), putting the maximum borrow towards the right horizontal direction (or the downward vertical direction, the same method), then putting a second typesetting file (3) in the horizontal direction of the first typesetting file (2), and aligning the top end of the second typesetting file (3) in the horizontal direction with the top end of the first typesetting file (2); the method comprises the steps that the rightmost line of Matrix values of the maximum borrowing of a first typesetting file (2) is Matrix-a (n;), n is the width of the first typesetting file (2), the leftmost line of Matrix values of the maximum borrowing of a second typesetting file (3) is Matrix-b (i;), the second typesetting file (3) is horizontally shifted by 1 pixel to the left, namely, the offset value m is 1, then a line of Matrix values of the offset value i is Matrix-b (i-m;) and Matrix-a (n;), and calculation of 'bitwise and' is carried out, for example, Matrix-b (i-m;);, & Matrix-a (n);). 1, pixel collision occurs, and the optimal borrowing of two local files is found; if not, continuing horizontal offset according to the offset value m +1, then taking the row Matrix value Matrix-b (i- (m + 1)) of the offset value m +1 from the offset +1 position in the opposite direction, carrying out bitwise AND calculation on Matrix-a (n) and Matrix-b (i- (m + 1)), counting the calculation result, and if the result is 1, generating pixel collision; then, the other three directions of the second typesetting file (3) are respectively collided according to the method;
2) then, moving the second typesetting file (3) downwards by one pixel j-1 in the horizontal direction than the top end of the first typesetting file (2), performing cyclic collision according to the collision method, determining the optimal borrowing position (13) of the second typesetting file (3) in four directions of moving downwards by 1 pixel until the bottom end of the matrix of the second typesetting file (3) is aligned with the bottom end of the matrix of the first typesetting file (2), and ending the cycle
Step six, determining an optimal borrowing position: comparing deviation values of the second typesetting file (3) after collision in four directions every time, wherein the maximum collision deviation value Jv-max is the optimal borrowing position, and the maximum borrowing position in the direction of the maximum collision deviation value is the optimal borrowing position;
seventhly, determining an optimal borrowing position (13) of the optimal file: if a plurality of files exist, the collision method is sequentially carried out, the collision results of the optimal borrowing of the files are compared, and the optimal borrowing position (13) of the optimal file is determined.
As shown in fig. 1, in the original layout combining process, a first layout file (2) and a second layout file (3) are integrated through an original layout mode (1) to form a larger original layout occupation area (4); in the new layout combination process, before pixel collision combination (5), the maximum borrowing position value (9) of each row of layout combination files is determined, in the pixel collision combination (5), four directions of every two layout combination files respectively collide according to certain angle rotation, after success, a new layout occupation region (7) is formed through pixel layout collision points (6) in each direction, compared with an original layout occupation region (4) in an original layout mode (1), the new layout occupation region (7) obtains a saving occupation region (8) with a certain size, and the size of the saving occupation region (8) is determined according to the optimal dislocation position (13) generated by the pixel collision combination (5) between the first layout file (2) and the second layout file (3).
It should be noted that, in the process of pixel collision merging (5) of every two merged files, the collision position is each direction of the first typesetting file (2) and the second typesetting file (3); in the process of pixel collision plate combination (5) of every two plate combination files, the rotation frequency angle of the collision azimuth is adjusted to be generally 90 degrees and multiples thereof; the method comprises the steps that a first typesetting file (2) and a second typesetting file (3) are horizontally arranged in the pixel collision typesetting process (5) and are sequentially arranged, when the maximum borrowing value (9) of the files is judged, if a gap value larger than a set value is generated between the first typesetting file (2) and the second typesetting file (3), the second typesetting file (3) can be automatically folded, and the optimal dislocation position (13) is the optimal solution of the omnibearing collision combination of the first typesetting file (2) and the second typesetting file (3), namely, the occupied area (8) is saved.
The invention has the beneficial effects that: 1. designing a method for determining the optimal borrowing position of printing plate combination by using a pixel collision method, wherein in the whole plate combination optimization process, the maximum borrowing four directions of each line of plate combination files are determined to be searched by using a digitization technology and a programming technology before pixel collision, and the file plate combination occupation domain value is estimated in advance, namely the maximum borrowing value; 2. and respectively colliding the four directions of each file according to a certain angle rotation in a pixel collision process, such as a 90-degree rotation angle, and enabling the second typesetting file to be respectively staggered and sequentially carried out in the horizontal direction and the vertical direction until the optimal staggered position of the combined version of the two files is found and guaranteed, optimizing the occupation space in the process of combining the versions is guaranteed, and the cost of combining the versions is saved.
Claims (8)
1. A method for determining the optimal borrowing position of a printing plate combination by using a pixel collision method mainly comprises the following steps of pixel collision plate combination (5), a maximum borrowing position value (9) and an optimal dislocation position (13), wherein the operation process comprises the following steps:
the file Matrix digitization comprises the steps of newly building canvas, converting a PDF format edition file into a PNG format file according to the proportion of 1:1, carrying out pixel Matrix dereferencing, digitizing the file, (defining m × n Matrix, wherein Matrix (i, J) represents the data of the ith row and the jth column of the Matrix a, Matrix (J) represents the data of the jth column, Matrix (i, J) represents the data of the ith row)
Step two, file image binarization: carrying out image binarization on the PNG format file, namely representing the file by 0 and 1, representing a blank area by 0, namely a 0-value area (10), and representing a content area by 1, namely a 1-value area (11), so as to obtain a file outline (12);
step three, judging the maximum borrowing of the file: taking values from four directions of the file respectively according to the image binarization matrix, if the value is 0, taking the value till 1, then storing the value of each row as a borrow array, calculating the number m of the value of each array, taking out the maximum borrow J-max in the direction which is the borrow corresponding to the maximum value m, taking out the maximum borrow in other directions by the same method, and then comparing and determining the maximum borrow J-max of the file; determining the maximum borrowing of each edition combination file by the method;
step four, calculating a maximum borrowing value (9): the borrowing value Jvi is equal to the number mi of the numerical value of the corresponding borrowing array, and the maximum borrowing value Jv-max is the number of the numerical value of the corresponding maximum borrowing array;
step five, pixel collision plate combination (5);
step six, determining an optimal borrowing position: comparing deviation values of the second typesetting file (3) after collision in four directions every time, wherein the maximum collision deviation value Jv-max is the optimal borrowing position, and the maximum borrowing position in the direction of the maximum collision deviation value is the optimal borrowing position;
seventhly, determining an optimal borrowing position (13) of the optimal file: if a plurality of files exist, the collision method is sequentially carried out, the collision results of the optimal borrowing of the files are compared, and the optimal borrowing position (13) of the optimal file is determined.
2. The pixel collision process in the method for determining the optimal borrowing position for printing plate combination by using the pixel collision method according to claim 1, starting from the canvas edge position, the specific operation contents are as follows:
1) newly building a canvas, putting a file with the largest expansion area (one of the files is randomly selected if the expansion areas of the files are the same), putting the maximum borrow towards the right horizontal direction (or the downward vertical direction, the same method), then putting a second typesetting file (3) in the horizontal direction of the first typesetting file (2), and aligning the top end of the second typesetting file (3) in the horizontal direction with the top end of the first typesetting file (2); the method comprises the steps that the rightmost line of Matrix values of the maximum borrowing of a first typesetting file (2) is Matrix-a (n;), n is the width of the first typesetting file (2), the leftmost line of Matrix values of the maximum borrowing of a second typesetting file (3) is Matrix-b (i;), the second typesetting file (3) is horizontally shifted by 1 pixel to the left, namely, the offset value m is 1, then a line of Matrix values of the offset value i is Matrix-b (i-m;) and Matrix-a (n;), and calculation of 'bitwise and' is carried out, for example, Matrix-b (i-m;);, & Matrix-a (n);). 1, pixel collision occurs, and the optimal borrowing of two local files is found; if not, continuing horizontal offset according to the offset value m +1, then taking the row Matrix value Matrix-b (i- (m + 1)) of the offset value m +1 from the offset +1 position in the opposite direction, carrying out bitwise AND calculation on Matrix-a (n) and Matrix-b (i- (m + 1)), counting the calculation result, and if the result is 1, generating pixel collision; then, the other three directions of the second typesetting file (3) are respectively collided according to the method;
2) and then moving the second typeset file (3) downwards by one pixel j-1 in the horizontal direction compared with the top end of the first typeset file (2), performing cyclic collision according to the collision method, determining the optimal borrowing position (13) of the second typeset file (3) in four directions when the second typeset file moves downwards by 1 pixel until the bottom end of the matrix of the second typeset file (3) is aligned with the bottom end of the matrix of the first typeset file (2), and finishing the cycle.
3. The method for determining the optimal borrowing position of the printing plate combination by using the pixel collision method according to the claim 1, wherein in the original plate combination process, the first typesetting file (2) and the second typesetting file (3) are integrated through the original typesetting mode (1) to form a larger original typesetting occupation area (4); in the new layout combination process, before pixel collision combination (5), the maximum borrowing position value (9) of each row of layout combination files is determined, in the pixel collision combination (5), four directions of every two layout combination files respectively collide according to certain angle rotation, after success, a new layout occupation region (7) is formed through pixel layout collision points (6) in each direction, compared with an original layout occupation region (4) in an original layout mode (1), the new layout occupation region (7) obtains a saving occupation region (8) with a certain size, and the size of the saving occupation region (8) is determined according to the optimal dislocation position (13) generated by the pixel collision combination (5) between the first layout file (2) and the second layout file (3).
4. The method for determining the optimal borrowing position of the printing layout by using the pixel collision method as claimed in claim 2, wherein during the pixel collision layout (5) of every two layout files, the position of the collision is the directions of the first layout file (2) and the second layout file (3).
5. The method for determining the optimal borrowing position of printing plate combination by using the pixel collision method according to claim 2, wherein the rotation frequency angle for adjusting the collision azimuth is generally 90 degrees and multiples thereof during pixel collision plate combination (5) of every two plate combination files.
6. The method for determining the optimal borrowing position for printing combination according to claim 1, wherein the first typeset file (2) and the second typeset file (3) are horizontally arranged and sequentially arranged in the pixel collision combination process (5).
7. The method for determining the optimal borrowing position of the printing layout by using the pixel collision method as claimed in claim 1, wherein when the maximum borrowing position value (9) of the file is judged, if a gap value larger than a set value is generated between the first layout file (2) and the second layout file (3), the second layout file (3) is automatically folded.
8. The method for determining the optimal borrowing position of the printing layout by using the pixel collision method as claimed in claim 1, wherein the optimal dislocation position (13) is the optimal solution of the omnibearing collision combination of the first layout file (2) and the second layout file (3), namely the largest saving occupation area (8) in the combination.
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| JP2009223846A (en) * | 2008-03-19 | 2009-10-01 | Seiko Epson Corp | Imposition print control unit, imposition print system, imposition print method and program |
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| CN108694161A (en) * | 2017-04-05 | 2018-10-23 | 北大方正集团有限公司 | Type-setting document processing method and processing device |
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