Cut piece typesetting method and system for cloth with color difference between sides and middle

Abstract

The invention provides a cut-part typesetting method and system for edge-center color difference cloth. The method comprises the steps that two color difference boundaries of cloth are obtained, and the cloth is divided into a plurality of discharging sections in the length direction; two transition areas on each discharging section and a direct discharging area located between the two transition areas are determined; if all cutting pieces required for sewing a piece of target clothes cannot be typeset in a direct arrangement area of the target arrangement section, judging whether a first condition is met or not when the cutting pieces which are not typeset successfully are exposed cutting pieces, if so, taking the transition area as a supplementary arrangement area, and if not, taking the direct arrangement area as a non-exposed cutting piece typesetting area, and setting the non-exposed cutting piece typesetting area as a non-exposed cutting piece typesetting area; the first condition is that the width, which cannot fall into the direct discharging area, of the unsuccessfully-typeset cutting piece is not larger than twice of the edge sewing width of the cutting piece and can be compensated by one transition area or two transition areas of the target discharging section. The system comprises functional modules for realizing the steps. According to the invention, the problems of low efficiency and low overall utilization rate of the cloth caused by the existing manual typesetting and cutting mode for the edge-center color difference cloth can be solved.

Description

Technical Field

[0001] The present invention belongs to the field of cutting piece layout technology, and more specifically, relates to a cutting piece layout method and system for edge and center color difference fabrics. Background Art

[0002] Color difference in the center of the edge is one of the most common and difficult problems to overcome in the fabric printing and dyeing process. Color difference in the center of the edge refers to the phenomenon that the left and right edges of the fabric have color difference relative to the middle area in the width direction of the fabric. The color difference in the center of the edge of the fabric has a great impact on the layout of the cut pieces, and the color difference in the center of the edge of the solid color fabric has the greatest impact. This is because when the degree of color difference is the same, the color difference in the center of the edge of the solid color fabric is more obvious than that of the non-solid color fabric such as striped fabric.

[0003] At present, in order to improve the utilization rate of the middle area of ​​the fabric with color difference in the middle of the edge, the existing pattern layout for the fabric with color difference in the middle of the edge is usually carried out manually. Specifically, the pattern layout engineer arranges as many patterns as possible in the middle area of ​​the fabric with color difference in the middle of the edge based on his own experience, and treats the left and right edges of the fabric as waste. However, this manual pattern layout method is inefficient, especially when the overall volume of the fabric with color difference in the middle of the edge is large, which will seriously affect the progress of subsequent fabric cutting, thereby extending the entire cycle of garment production. In addition, because the above-mentioned manual pattern layout method treats the left and right edges of the fabric with color difference in the middle of the edge as waste, the overall utilization rate of the fabric is low. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the existing manual layout and cutting method for edge and center color difference fabric is inefficient and causes low overall utilization rate of the fabric.

[0005] In order to achieve the above-mentioned object, the present invention provides a cutting piece layout method and system for edge and center color difference fabric.

[0006] According to a first aspect of the present invention, a method for laying out a piece of fabric with color difference between the edge and the center is provided, the method comprising the following steps:

[0007] Obtaining two color difference dividing lines of a piece of fabric with color difference in the middle of the edge, and dividing the fabric with color difference in the middle of the edge into a plurality of material arrangement sections along the length direction of the fabric;

[0008] Determine two transition areas on each discharge section and a direct discharge area between the two transition areas, wherein the contours of the two transition areas are respectively the minimum circumscribed rectangular frames of two color difference dividing lines in the corresponding discharge section;

[0009] Determine whether all the pieces required for sewing a target garment can be laid out in the direct layout area of ​​the target layout section. If not, determine the type of the unsuccessfully laid out pieces. If they are exposed pieces, determine whether the first condition is satisfied. If so, use the transition area of ​​the target layout section as a supplementary layout area. If not, use the direct layout area of ​​the target layout section as a non-exposed piece layout area.

[0010] Among them, the first condition is: the excess width of the unsuccessfully laid-out piece that cannot fall into the direct layout area is not greater than twice the predetermined piece edge sewing width and the excess width can be compensated by any one or two transition areas of the target layout section.

[0011] Optionally, if the unsuccessfully laid out piece is a non-exposed piece, it is determined whether the excess width of the unsuccessfully laid out piece that cannot fall into the direct layout area can be compensated by any one or two transition areas of the target layout section. If so, the transition area of ​​the target layout section is used as a supplementary layout area; if not, the unsuccessfully laid out piece is laid out in other layout sections.

[0012] Optionally, the step of using the transition zone of the target discharge section as a supplementary discharge zone includes:

[0013] If the excess width can be made up by any transition zone, only the corresponding part of the corresponding transition zone is used as the supplementary discharge zone, and the part of the transition zone that is not used as the supplementary discharge zone is marked;

[0014] If the excess width needs to be made up by two transition zones, only the corresponding part of each transition zone is used as the supplementary discharge zone, and the part of each transition zone that is not used as the supplementary discharge zone is marked.

[0015] Optionally, the cut piece layout method further includes:

[0016] The transition area without the supplementary discharge area and the portion of the transition area with the supplementary discharge area that is not used as the supplementary discharge area are regarded as the discharge area of ​​the non-exposed panel that can fall therein.

[0017] Optionally, the cut piece layout method further includes:

[0018] After completing the pattern layout of the color-difference fabrics in all the selvedges, determine the types and quantities of the remaining pieces that are insufficient to sew a target garment;

[0019] According to the type and quantity of the remaining pieces, the color-free fabric is laid out with supplementary pieces, and the supplementary pieces and the remaining pieces are used together to sew a corresponding number of target garments.

[0020] Optionally, obtaining two color difference dividing lines of the color difference fabric in one edge includes:

[0021] Acquire an image of the edge-mid color difference fabric in a flat state;

[0022] The edge-center color difference cloth image is divided into a plurality of rectangular color blocks, and each rectangular color block is converted into a rectangular grayscale block;

[0023] In the width direction of the fabric, determine whether there is a color difference between two adjacent rectangular grayscale blocks. If so, use the common edge of the two rectangular grayscale blocks as a minimum length unit of the color difference boundary line;

[0024] All minimum length units are connected to obtain the color difference boundary.

[0025] Optionally, after obtaining the color difference boundary line, the method further includes:

[0026] Each minimum length unit on the color difference boundary line is traversed, and if it is determined that the currently traversed minimum length unit is a deviated minimum length unit, the minimum length unit is deleted, and the two minimum length units before and after the minimum length unit are connected by a connecting line.

[0027] Optionally, determining whether the currently traversed minimum length unit is a deviated minimum length unit includes:

[0028] Determine the width interval formed by the remaining minimum length units except the currently traversed minimum length unit;

[0029] If the currently traversed minimum length unit is not within the width interval and the distance between the current traversed minimum length unit and the width interval in the cloth width direction reaches the distance setting value, the currently traversed minimum length unit is determined as a deviated minimum length unit.

[0030] According to a second aspect of the present invention, a piece layout system for edge-center color difference fabric is provided, and the piece layout system includes the following functional modules:

[0031] A fabric color difference recognition and segmentation module is used to obtain two color difference dividing lines of a piece of fabric with color difference in the edge, and divide the fabric with color difference in the edge into multiple layout sections along the length direction of the fabric;

[0032] A discharge section partitioning module is used to determine two transition areas on each discharge section and a direct discharge area between the two transition areas, wherein the outlines of the two transition areas are respectively the minimum circumscribed rectangular frames of two color difference dividing lines in the corresponding discharge section;

[0033] The layout simulation and logic judgment module is used to judge whether all the pieces required for sewing a target garment can be laid out in the direct layout area of ​​the target layout section. If not, the type of the unsuccessfully laid out pieces is determined. If they are exposed pieces, whether the first condition is satisfied is determined. If so, the transition area of ​​the target layout section is used as a supplementary layout area. If not, the direct layout area of ​​the target layout section is used as a non-exposed piece layout area.

[0034] Among them, the first condition is: the excess width of the unsuccessfully laid-out piece that cannot fall into the direct layout area is not greater than twice the predetermined piece edge sewing width and the excess width can be compensated by any one or two transition areas of the target layout section.

[0035] The beneficial effects of the present invention are:

[0036] The present invention provides a cutting layout method for edge-mid color difference fabric, including fabric color difference identification and segmentation, layout segment partitioning, and layout simulation and logic judgment. The fabric color difference identification and segmentation is specifically: obtaining two color difference dividing lines of a piece of edge-mid color difference fabric, and dividing the edge-mid color difference fabric into a plurality of layout segments along the length direction. The layout segment partitioning is specifically: determining two transition areas on each layout segment and a direct layout area between the two transition areas, and the contours of the two transition areas are respectively the minimum circumscribed rectangular frames of the two color difference dividing lines in the corresponding layout segment. The layout simulation and logic judgment link is specifically as follows: determine whether all the pieces required for sewing a target garment can be laid out in the direct layout area of ​​the target layout section. If not, determine the type of the piece that has not been successfully laid out. If it is an exposed piece, determine whether the first condition is met. If so, use the transition area of ​​the target layout section as a supplementary layout area. If not, use the direct layout area of ​​the target layout section as a non-exposed piece layout area. The first condition is: the excess width of the unsuccessfully laid out piece that cannot fall into the direct layout area is not greater than twice the predetermined piece edge sewing width and the excess width can be compensated by any one or two transition areas of the target layout section.

[0037] On the one hand, based on the image of the fabric with color difference in the middle of the edge acquired in advance, the method for laying out the pieces of the fabric with color difference in the middle of the edge of the present invention can be implemented based on the corresponding electronic device. Specifically, the electronic device includes a processor and a memory, and the method for laying out the pieces of the fabric with color difference in the middle of the edge of the present invention is implemented when the processor executes the computer program stored in the memory. It can be seen that the method for laying out the pieces of the fabric with color difference in the middle of the edge of the present invention is a method for laying out the pieces of the fabric that can be automatically implemented. Compared with the existing method of manually laying out the pieces of the fabric with color difference in the middle of the edge, the method for laying out the pieces of the fabric with color difference in the middle of the edge of the present invention has higher efficiency due to its automated implementation method.

[0038] On the other hand, in the present invention, when the first condition is met, the transition area of ​​the target layout section is used as a supplementary layout area. Compared with the existing method of manually arranging pieces for edge-mid color difference fabrics, which only uses the middle area of ​​the fabric as the layout area, the piece layout method for edge-mid color difference fabrics of the present invention effectively utilizes the transition area. Since the color difference boundary lines of edge-mid color difference fabrics are basically irregular curves, the total area of ​​the direct layout area and the transition area in the present invention is greater than the total area of ​​the layout area in the prior art. Therefore, the use of the piece layout method for edge-mid color difference fabrics of the present invention can improve the overall utilization rate of the fabric.

[0039] The cutting piece layout system for fabric with color difference in the middle of the edge of the present invention and the cutting piece layout method for fabric with color difference in the middle of the edge of the present invention belong to a general inventive concept, and have at least the same beneficial effects as the cutting piece layout method for fabric with color difference in the middle of the edge of the present invention, and its beneficial effects are not repeated here.

[0040] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention may be better understood by referring to the following description taken in conjunction with the accompanying drawings, in which the same or similar reference numerals are used throughout the drawings to represent the same or similar components.

[0042] Figure 1 A flowchart of the implementation method of the cutting piece layout method for edge-center color difference fabric according to an embodiment of the present invention is shown;

[0043] Figure 2 A schematic diagram of the partitioning of the discharge section according to an embodiment of the present invention is shown;

[0044] Figure 3 A structural block diagram of a cutting piece layout system for edge-center color difference fabrics according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to more fully understand the technical solution of the present invention, the exemplary embodiments of the present invention will be described in more comprehensive and detailed in conjunction with the accompanying drawings below. Obviously, the one or more embodiments of the present invention described below are only one or more of the specific ways in which the technical solution of the present invention can be implemented, and are not exhaustive. It should be understood that other ways belonging to a general inventive concept can be used to implement the technical solution of the present invention, and should not be limited by the exemplary embodiments described. Based on one or more embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work should fall within the scope of protection of the present invention.

[0046] Example: Figure 1 The flowchart of the method for cutting and typesetting fabric with color difference between the edge and the middle according to the embodiment of the present invention is shown. Figure 2 FIG. 2 shows a schematic diagram of the partitioning of the discharge section according to an embodiment of the present invention. Figure 1 and Figure 2 The method for laying out the pieces of fabric with color difference between the edge and the center according to the embodiment of the present invention comprises the following steps:

[0047] Obtain two color difference dividing lines of a piece of fabric with color difference in the middle of the edge, and divide the fabric with color difference in the middle of the edge into a plurality of layout sections along the length direction of the fabric;

[0048] Determine two transition areas on each discharge section and a direct discharge area between the two transition areas, the outlines of the two transition areas are respectively the minimum circumscribed rectangular frames of the two color difference dividing lines in the corresponding discharge section;

[0049] Determine whether all the pieces required for sewing a target garment can be laid out in the direct layout area of ​​the target layout section. If not, determine the type of the unsuccessfully laid out piece. If it is an exposed piece, determine whether the first condition is satisfied. If so, use the transition area of ​​the target layout section as a supplementary layout area. If not, use the direct layout area of ​​the target layout section as a non-exposed piece layout area.

[0050] Among them, the first condition is that the excess width of the unsuccessfully laid-out pieces that cannot fall into the direct laying-out area is not greater than twice the predetermined sewing width of the edge of the pieces and the excess width can be compensated by any one or two transition areas of the target laying-out section.

[0051] Furthermore, in an embodiment of the present invention, if the unsuccessfully laid out piece is a non-exposed piece, it is determined whether the excess width of the unsuccessfully laid out piece that cannot fall into the direct layout area can be compensated by any one or two transition areas of the target layout segment. If so, the transition area of ​​the target layout segment is used as a supplementary layout area. If not, the unsuccessfully laid out piece is laid out in other layout segments.

[0052] Specifically, in the embodiment of the present invention, if it is determined that all the pieces required for sewing a target garment can be laid out in the direct layout area of ​​the target layout section, the corresponding piece layout operation is performed.

[0053] Specifically, in the embodiment of the present invention, the two transition areas on the discharge section correspond to the minimum circumscribed rectangular frames of the two color difference dividing lines in the discharge section, and the color difference dividing lines of the edge-mid color difference fabric are basically irregular curves, so the transition area actually includes two parts, one of which belongs to the middle area of ​​the edge-mid color difference fabric, and the other belongs to the edge area of ​​the corresponding side. It can be seen that the direct discharge area and the transition area in the embodiment of the present invention are equivalent to the middle area of ​​the edge-mid color difference fabric plus a part of the edge area in the prior art.

[0054] Specifically, in the embodiment of the present invention, the exposed panels are the parts that are exposed after being sewn into a garment, such as sleeves; and the non-exposed panels are the parts that are not exposed after being sewn into a garment, such as the lining of a trouser pocket.

[0055] Furthermore, in an embodiment of the present invention, using the transition zone of the target discharge section as a supplementary discharge zone includes:

[0056] If the excess width can be made up by any transition zone, only the corresponding part of the corresponding transition zone is used as the supplementary discharge area, and the part of the transition zone that is not used as the supplementary discharge area is marked;

[0057] If the excess width needs to be made up by two transition zones, only the corresponding part of each transition zone is used as the supplementary discharge area, and the part of each transition zone that is not used as the supplementary discharge area is marked.

[0058] Furthermore, the cutting piece layout method for edge-center color difference fabric in the embodiment of the present invention further includes:

[0059] The transition area without the supplementary discharge area and the portion of the transition area with the supplementary discharge area that is not used as the supplementary discharge area are regarded as the discharge area of ​​the non-exposed panel that can fall therein.

[0060] Furthermore, the cutting piece layout method for edge-center color difference fabric in the embodiment of the present invention further includes:

[0061] After completing the pattern layout of the color-difference fabrics in all the selvedges, determine the types and quantities of the remaining pieces that are insufficient to sew a target garment;

[0062] According to the type and quantity of the remaining pieces, the color-free fabric is laid out with supplementary pieces, and the supplementary pieces and the remaining pieces are used together to sew a corresponding number of target garments.

[0063] Specifically, in the embodiment of the present invention, the cutting tables are allocated according to the number of pieces of fabric with color difference in the edge that can be supplemented by one piece of fabric without color difference. For example, after the layout of the pieces of fabric with color difference in the edge is completed for three pieces, the supplementary pieces corresponding to all the remaining pieces need to be obtained by cutting a whole piece of fabric without color difference. Then the number of cutting tables responsible for cutting fabric with color difference in the edge is three times the number of cutting tables responsible for cutting fabric without color difference. If the total number of cutting tables is not a multiple of 4, the remaining cutting tables after the allocation of cutting tables can execute the remaining orders. For example, if the total number of cutting tables is 11, the number of cutting tables responsible for cutting fabric with color difference in the edge is 6, the number of cutting tables responsible for cutting fabric without color difference is 2, and the number of remaining cutting tables for executing the remaining orders is 3. Furthermore, if there are no other orders at present, the number of cutting segments of the remaining cutting tables can be adjusted. For example, for the remaining 3 cutting tables, 2 of them cut a total of 60 edge and center color difference segments, and the other cutting table cuts 20 color-free segments.

[0064] Furthermore, in the embodiment of the present invention, obtaining two color difference dividing lines of the color difference fabric in one edge includes:

[0065] Obtain an image of the edge-mid chromatic aberration cloth in a flat state;

[0066] The edge-center color difference cloth image is divided into a plurality of rectangular color blocks, and each rectangular color block is converted into a rectangular grayscale block;

[0067] In the width direction of the fabric, determine whether there is a color difference between two adjacent rectangular grayscale blocks. If so, use the common edge of the two rectangular grayscale blocks as a minimum length unit of the color difference boundary line;

[0068] Connect all the minimum length units to obtain the color difference boundary.

[0069] Furthermore, in the embodiment of the present invention, after obtaining the color difference boundary line, the method further includes:

[0070] Each minimum length unit on the color difference boundary line is traversed. If it is determined that the currently traversed minimum length unit is a deviated minimum length unit, the minimum length unit is deleted, and the two minimum length units before and after the minimum length unit are connected by a connecting line.

[0071] Furthermore, in the embodiment of the present invention, determining whether the currently traversed minimum length unit is a deviated minimum length unit includes:

[0072] Determine the width interval formed by the remaining minimum length units except the currently traversed minimum length unit;

[0073] If the currently traversed minimum length unit is not within the width interval and the distance between the width interval and the width direction of the fabric reaches the distance setting value, the currently traversed minimum length unit is determined as a deviated minimum length unit.

[0074] Specifically, in the embodiment of the present invention, the edge-center color difference cloth image is divided into a plurality of square color blocks;

[0075] The specific method of judging whether there is a color difference between two adjacent rectangular grayscale blocks is as follows: if the difference between the grayscale values ​​of the two adjacent rectangular grayscale blocks is greater than the grayscale value setting value, it is determined that there is a color difference between the two rectangular grayscale blocks; otherwise, it is determined that there is no color difference between the two rectangular grayscale blocks.

[0076] Specifically, in the embodiment of the present invention, when determining whether the currently traversed minimum length unit is a deviated minimum length unit, first determine the leftmost length unit and the rightmost length unit of the remaining minimum length units except the currently traversed minimum length unit, and then determine whether the currently traversed minimum length unit is on the left side of the leftmost length unit or on the right side of the rightmost length unit. If so, determine the deviation distance of the currently traversed minimum length unit. For example, if the currently traversed minimum length unit is on the left side of the leftmost length unit, obtain the distance between the currently traversed minimum length unit and the leftmost length unit in the fabric width direction. If the distance is greater than the distance setting value, it is determined that the currently traversed minimum length unit deviates to the left. The embodiment of the present invention determines and deletes the deviated minimum length unit on the color difference boundary line and reconstructs the color difference boundary line to avoid the influence of the point color difference on the edge color difference fabric on the determination of the color difference boundary line as much as possible. Among them, the distance setting value used to determine whether the minimum length unit currently traversed deviates is related to the width of the cloth and can be flexibly set according to actual conditions. For example, when the cloth width is 4m, the distance setting value can be set to 10cm.

[0077] Accordingly, based on the cutting piece layout method for fabric with color difference at the center and edge of the embodiment of the present invention, the embodiment of the present invention further proposes a cutting piece layout system for fabric with color difference at the center and edge of the embodiment of the present invention.

[0078] Figure 3 The structural block diagram of the cutting piece layout system for edge-center color difference fabric according to an embodiment of the present invention is shown. Figure 3 The cutting piece layout system for edge-center color difference fabric of the embodiment of the present invention includes the following functional modules:

[0079] The fabric color difference recognition and segmentation module is used to obtain two color difference dividing lines of a piece of fabric with color difference at the edge, and divide it into multiple layout sections along the length direction of the fabric with color difference at the edge;

[0080] The material discharging section partitioning module is used to determine two transition areas on each material discharging section and a direct material discharging area between the two transition areas, and the contours of the two transition areas are respectively the minimum circumscribed rectangular frames of the two color difference dividing lines in the corresponding material discharging section;

[0081] The layout simulation and logic judgment module is used to judge whether all the pieces required for sewing a target garment can be laid out in the direct layout area of ​​the target layout section. If not, the type of the unsuccessfully laid out pieces is determined. If they are exposed pieces, whether the first condition is satisfied is determined. If so, the transition area of ​​the target layout section is used as a supplementary layout area. If not, the direct layout area of ​​the target layout section is used as a non-exposed piece layout area.

[0082] Among them, the first condition is that the excess width of the unsuccessfully laid-out pieces that cannot fall into the direct laying-out area is not greater than twice the predetermined sewing width of the edge of the pieces and the excess width can be compensated by any one or two transition areas of the target laying-out section.

[0083] Although one or more embodiments of the present invention are described above, it should be known to those skilled in the art that the present invention can be implemented in any other form without departing from its subject matter and scope. Therefore, the embodiments described above are illustrative rather than restrictive, and many modifications and substitutions are obvious to those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A method for cutting and laying out fabric pieces with color difference between the edge and the center, characterized in that: include: Obtaining two color difference dividing lines of a piece of fabric with color difference in the middle of the edge, and dividing the fabric with color difference in the middle of the edge into a plurality of material arrangement sections along the length direction of the fabric; Determine two transition areas on each discharge section and a direct discharge area between the two transition areas, wherein the contours of the two transition areas are respectively the minimum circumscribed rectangular frames of two color difference dividing lines in the corresponding discharge section; Determine whether all the pieces required for sewing a target garment can be laid out in the direct layout area of ​​the target layout section. If not, determine the type of the unsuccessfully laid out pieces. If they are exposed pieces, determine whether the first condition is satisfied. If so, use the transition area of ​​the target layout section as a supplementary layout area. If not, use the direct layout area of ​​the target layout section as a non-exposed piece layout area. Among them, the first condition is: the excess width of the unsuccessfully laid-out piece that cannot fall into the direct layout area is not greater than twice the predetermined piece edge sewing width and the excess width can be compensated by any one or two transition areas of the target layout section.

2. The method for laying out the pieces of fabric with color difference between the edge and the center according to claim 1, characterized in that: If the unsuccessfully laid out piece is a non-exposed piece, determine whether the excess width of the unsuccessfully laid out piece that cannot fall into the direct layout area can be compensated by any one or two transition areas of the target layout section. If so, the transition area of ​​the target layout section is used as a supplementary layout area. If not, the unsuccessfully laid out piece is laid out in other layout sections.

3. The method for laying out the pieces of fabric with color difference between the edge and the center according to claim 2, characterized in that: The method of using the transition zone of the target discharge section as a supplementary discharge zone comprises: If the excess width can be made up by any transition zone, only the corresponding part of the corresponding transition zone is used as the supplementary discharge zone, and the part of the transition zone that is not used as the supplementary discharge zone is marked; If the excess width needs to be made up by two transition zones, only the corresponding part of each transition zone is used as the supplementary discharge zone, and the part of each transition zone that is not used as the supplementary discharge zone is marked.

4. The method for laying out the pieces of fabric with color difference between the edge and the center according to claim 3, characterized in that: Also includes: The transition area without the supplementary discharge area and the portion of the transition area with the supplementary discharge area that is not used as the supplementary discharge area are regarded as the discharge area of ​​the non-exposed panel that can fall therein.

5. The method for laying out the pieces of fabric with color difference between the edge and the center according to claim 4, characterized in that: Also includes: After completing the pattern layout of the color-difference fabrics in all the selvedges, determine the types and quantities of the remaining pieces that are insufficient to sew a target garment; According to the type and quantity of the remaining pieces, the color-free fabric is laid out with supplementary pieces, and the supplementary pieces and the remaining pieces are used together to sew a corresponding number of target garments.

6. The method for laying out the pieces of fabric with color difference between the edge and the center according to claim 5, characterized in that: The method of obtaining two color difference dividing lines of the color difference cloth in one edge includes: Acquire an image of the edge-mid color difference fabric in a flat state; The edge-center color difference cloth image is divided into a plurality of rectangular color blocks, and each rectangular color block is converted into a rectangular grayscale block; In the width direction of the fabric, determine whether there is a color difference between two adjacent rectangular grayscale blocks. If so, use the common edge of the two rectangular grayscale blocks as a minimum length unit of the color difference boundary line; All minimum length units are connected to obtain the color difference boundary.

7. The method for laying out the pieces of fabric with color difference between the edge and the center according to claim 6, characterized in that: After obtaining the color difference boundary line, the method further includes: Each minimum length unit on the color difference boundary line is traversed, and if it is determined that the currently traversed minimum length unit is a deviated minimum length unit, the minimum length unit is deleted, and the two minimum length units before and after the minimum length unit are connected by a connecting line.

8. The method for laying out the pieces of fabric with color difference between the edge and the center according to claim 7, characterized in that: Determining whether the currently traversed minimum length unit is a deviated minimum length unit includes: Determine the width interval formed by the remaining minimum length units except the currently traversed minimum length unit; If the currently traversed minimum length unit is not within the width interval and the distance between the current traversed minimum length unit and the width interval in the cloth width direction reaches the set distance value, the currently traversed minimum length unit is determined as a deviated minimum length unit.

9. A cutting piece layout system for edge-center color difference fabrics, characterized in that: include: A fabric color difference recognition and segmentation module is used to obtain two color difference dividing lines of a piece of fabric with color difference in the edge, and divide the fabric with color difference in the edge into multiple layout sections along the length direction of the fabric; A discharge section partitioning module is used to determine two transition areas on each discharge section and a direct discharge area between the two transition areas, wherein the contours of the two transition areas are respectively the minimum circumscribed rectangular frames of two color difference dividing lines in the corresponding discharge section; The layout simulation and logic judgment module is used to judge whether all the pieces required for sewing a target garment can be laid out in the direct layout area of ​​the target layout section. If not, the type of the unsuccessfully laid out pieces is determined. If they are exposed pieces, whether the first condition is satisfied is determined. If so, the transition area of ​​the target layout section is used as a supplementary layout area. If not, the direct layout area of ​​the target layout section is used as a non-exposed piece layout area. Among them, the first condition is: the excess width of the unsuccessfully laid-out piece that cannot fall into the direct layout area is not greater than twice the predetermined piece edge sewing width and the excess width can be compensated by any one or two transition areas of the target layout section.

Images