CN112734639B - Image display stitching method and system - Google Patents
Image display stitching method and system Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformation in the plane of the image
- G06T3/40—Scaling the whole image or part thereof
- G06T3/4038—Scaling the whole image or part thereof for image mosaicing, i.e. plane images composed of plane sub-images
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/11—Region-based segmentation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The application discloses an image display splicing method, which comprises the following steps: s1, splitting an original image according to the number of display screens forming a split joint matrix to obtain a plurality of sub-images, wherein the number of the sub-images is equal to that of the display screens; s2, determining the position of a display screen corresponding to each sub-image in the original image; and S3, sending the original image to a display screen according to the coordinates for display. The application also provides an image splicing display system, which cuts the original image into a plurality of sub-images with the same number as the display screen, finds the positions of the display screens corresponding to the sub-images in the original image, and distributes the sub-images to the display screen.
Description
Technical Field
The application belongs to the field of video processing, and particularly relates to an image display splicing method and system.
Background
With the development of the video display field, the large-screen spliced display is more and more popular to users, and currently, in the market, most of the content output by the spliced screen adopts a screen divider, namely, N output ports are arranged for N display screens, corresponding content is displayed at different positions, but in reality, the output of each screen is the content of the whole video, and the content displayed on the display screen is 1/N of the content of the whole video, so that a plurality of physical wires are generated, and in addition, on hardware display equipment with low configuration, high-definition content of 4K and above cannot be displayed; moreover, the demands of users on special-shaped screens are increasing, and the current screen splitter technology cannot meet the market demands of special-shaped splicing.
If the maximum resolution of each block of the spliced screen is 1920x1080 and the resolution of the output content is 3840x2160, the actual output of each block of the screen is 3840x2160 by using the screen splitter, and the low-configuration display screen end cannot be normally used because the resolution cannot be supported, and meanwhile, the special-shaped spliced display is required to be supported for the user, so that the screen splitter cannot meet the requirement.
The application publication date is 2019, 3 months and 8 days, the application publication number is CN109448633A, the patent name is a special-shaped LED display screen display realization control method and Chinese patent realizing system, and the Chinese patent discloses a technical scheme which comprises the following steps: the method comprises the steps of obtaining configuration information of a sending system, obtaining screen information of a special-shaped LED display screen, obtaining original image data information of the special-shaped LED display screen, generating an original image data processing instruction, processing original image data to generate an image data cache file, sending the image data cache file to the special-shaped LED display screen for playing, and realizing display and playing of the special-shaped LED display screen.
The application publication date is 2019, 10 month and 18 days, the application publication number is CN110351497A, and the patent name is a Chinese patent of a spliced display system, which discloses another technical scheme, comprising: the display device comprises a plurality of display units, a controller and a power supply, wherein each display unit is provided with a display screen, the controller and the power supply, the power supply is used for supplying power to the display screen and the controller, the display screen is used for displaying images prestored in the controller, and address codes which are input in advance according to the positions of the display units are arranged in the controller; and the main controller cuts images pre-stored in the main controller according to the number and the relative positions of the display units to form local pictures of the images, the main controller is provided with a communication port, and after the controller is connected with the main controller through the communication port, the main controller respectively transmits the local pictures to the controller according to the address codes. And the display units download and store the corresponding local pictures from the main controller according to the respective address codes, so that a plurality of display units are spliced together to form a complete image.
Different from the technical scheme, the application provides a low-cost image display splicing method and system.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems that a display screen with low configuration cannot display high-definition content of 4K or above and special-shaped splicing cannot be realized in the prior art, the application provides an image display splicing method and system.
2. Technical proposal
In order to solve the problems, the technical scheme adopted by the application is as follows: an image display stitching method comprises the following steps:
s1, splitting an original image according to the number of display screens forming a split joint matrix to obtain a plurality of sub-images, wherein the number of the sub-images is equal to that of the display screens;
s2, determining coordinates of a display screen corresponding to each sub-image in the original image;
and S3, sending the original image to a display screen for display according to the coordinates.
According to the technical scheme, the original image is cut into a plurality of sub-images which are equal to the display screens in number, the positions of the display screens corresponding to the sub-images are found in the original image, and then the sub-images are distributed to the display screens.
Further, the step S2 specifically includes: the coordinate of each display screen on the original image is M 'N' (x (M-1) W/M, y (N-1) H/N, W: W/M, H: H/N), wherein M 'N' represents the position of the display screen on the original image, x represents the horizontal coordinate of the upper left corner of the display screen, y represents the vertical coordinate of the upper left corner of the display screen, W represents the width of the display screen, H represents the height of the display screen, M represents the number of the display screens which are transversely arranged, N represents the number of the display screens which are longitudinally arranged, W is the number of the pixels which are transversely arranged in the original image, and H is the number of the pixels which are longitudinally arranged in the original image. The technical scheme is suitable for rectangular splicing matrixes of a plurality of displays which are transversely and longitudinally arranged.
Further, the step S2 specifically includes:
s21, determining a minimum circumscribed rectangle of a display screen, wherein the width of the minimum circumscribed rectangle is w1, the height of the minimum circumscribed rectangle is h1, w1 = w is cosa+h is sin alpha, and the height of the minimum circumscribed rectangle is h1 = w is sin alpha+h is cos alpha, wherein alpha is an included angle between a spliced screen and an x-axis in a reverse direction, w represents the width of the display screen, and h represents the height of the display screen;
s22, performing anticlockwise rotation α on the display screen in step S21, and obtaining a minimum circumscribed rectangle of the minimum circumscribed rectangle in step S21, where the width of the minimum circumscribed rectangle is w2, and the height of the minimum circumscribed rectangle is h2, where w2=w1×cosα+h1×sinα, and the height of the minimum circumscribed rectangle is h2=w1×sinα+h1×cosα;
s23, further solving for the minimum bounding rectangle in step S22, where the width of the minimum bounding rectangle is w3 and the height is h3, where w3=w2×cosα+h2×sinα, and the height h3=w2×sinα+h2×cosα;
s24, cutting the display screen by using the minimum circumscribed rectangle in the step S23;
s25, calculating the coordinate position of the display screen according to the proportion of the original image and the display screen, and cutting the original image to obtain a plurality of sub-images;
s26, rotating the sub-image in the step S25 clockwise, wherein the rotation angle is alpha, and alpha is more than or equal to 0 degrees and less than or equal to 90 degrees. The technical scheme is suitable for special-shaped splicing matrixes, such as fishbone-shaped, reverse fishbone-shaped, fish-shaped and other special shapes, and the display screens in the special-shaped splicing matrixes are not mutually shielded.
Further, the step S25 specifically includes: the width w4=w3xl1 of the display screen on the original image, the height h4=h3xl2 of the display screen on the original image, wherein L1 is the ratio of the original image to the canvas on the width, L2 is the ratio of the original image to the canvas on the height, wherein l1=w/W ', l2=h/H', W is the number of pixels of the original image in the transverse direction, H is the number of pixels of the original image in the longitudinal direction, W 'represents the pixel width of the canvas, H' represents the pixel height of the canvas, W1 represents the width of the display screen, and H1 represents the height of the display screen.
Further, the step S2 specifically includes:
s21', rotating the canvas by an alpha angle, wherein the coordinate of any angle B of the display screen is (cosalpha x+sinalpha X y, sinalpha O1C-sinalpha x+cosalpha y), wherein O1C is the distance from a point O1 to a point C, the O1 coordinate system represents the coordinate system before the rotation of the canvas and the display screen, the O2 coordinate system represents the coordinate system after the rotation of the canvas and the display screen, C represents the intersection point of the X axis positive direction of the O1 coordinate system and the X axis positive direction of the O2 coordinate system, X is the abscissa of the A point before the rotation of the canvas corresponding to B, and y is the ordinate of the A point before the rotation of the canvas corresponding to B;
s22', determining the coordinates of the display screen on the original image according to the proportional relation between the current canvas size and the original image;
s23', repeating the steps, finding out the coordinates of each corner of all the display screens, and determining the content correspondingly displayed on the original image by the display screens. The technical scheme is suitable for special shapes such as fishbone shapes, reverse fishbone shapes, fish shapes and the like of possible special-shaped splicing matrixes, and in the special-shaped splicing matrixes, the situation that the display screens are mutually blocked can occur.
Further, the point B in the display screen is a coordinate point of the display screen at the upper left corner of the display screen in the canvas.
The application also provides an image mosaic display system, which is used for the image mosaic display method, and the device comprises the following steps: the image processing output device is used for determining the position of the display screen on an original image, cutting the original image to obtain a plurality of sub-images, and sending the sub-images to the display device, wherein the display device is used for receiving the display content of the image and displaying the display content on the display screen.
Further, the image processing output device cuts, rotates and scales the original image to generate sub-images, and sends the sub-images to each display screen.
Further, a splicing matrix formed by the display screens in the display equipment is rectangular or special-shaped.
Further, the image processing output device is a computer.
3. Advantageous effects
Compared with the prior art, the application has the beneficial effects that:
(1) The application can ensure that the low-configuration display screen equipment can display the high-definition content output with the content of more than 4K, thereby effectively reducing the cost;
(2) The application can meet the requirements of splicing screens and special-shaped screens formed by low-configuration display screen equipment, and can realize screen splicing and special-shaped display under the condition that users do not update the original display screen equipment.
Drawings
FIG. 1 is a system block diagram of the present application;
FIG. 2 is a schematic diagram of a display screen arrangement of a standard screen of the present application;
FIG. 3 is a schematic view of a display screen and its minimum bounding rectangle in embodiment 2 of the present application;
FIG. 4 is a schematic view of the display screen of FIG. 3 rotated counterclockwise by an angle α;
FIG. 5 is a schematic view of FIG. 4 and its smallest bounding rectangle;
FIG. 6 is a schematic diagram showing the position of the display screen in FIG. 5 being cut;
FIG. 7 is a schematic view of the display screen of FIG. 6 after being rotated clockwise by an angle α;
FIG. 8 is one of the patterns of the splice matrix in embodiment 2 of the present application;
FIG. 9 is a second pattern of a splice matrix in embodiment 2 of the present application;
FIG. 10 is a third diagram of a splice matrix in embodiment 2 of the present application;
FIG. 11 is one of the patterns of the splice matrix in embodiment 3 of the present application;
FIG. 12 is a schematic diagram of coordinates of a display screen prior to rotation of a canvas in embodiment 3 of the present application;
FIG. 13 is a schematic diagram showing coordinates of a display screen after canvas rotation in embodiment 3 of the present application
FIG. 14 is a schematic diagram of the coordinates of an angle of the display screen after rotation of the canvas in embodiment 3 of the present application.
Detailed Description
The application is further described below in connection with specific embodiments.
The present application includes a tiled display system, as shown in FIG. 1, comprising: the display device comprises at least two display screens, wherein the image processing output device is used for determining the position of the display screens on an original image, cutting the original image to obtain a plurality of sub-images, sending the sub-images to the display device, and the display device is used for receiving the display content of the image and displaying the display content on the display screens to form the special-shaped spliced display pattern. The display screens can be spliced into common rectangular, square or fishbone-shaped, reverse fishbone-shaped and other special-shaped patterns. In particular, the image processing output device may be a server, a computer, or the like, as long as it is a device that acquires image data and performs a processing function on the image data, and is not limited thereto.
The application also provides an image splicing display method, by which the high-definition original image can be displayed on a low-cost display screen, and the method is concretely as follows.
(1) Cutting an original image into a plurality of sub-images according to the number of display screens forming a splicing matrix, splicing a plurality of display screens on a canvas to form a splicing matrix, cutting the original image into a plurality of sub-images, wherein the number of the sub-images is the same as that of the display screens, namely, each sub-image corresponds to one display screen;
(2) Determining the coordinates of the display screen corresponding to each sub-image in the original image, wherein the content of the original image needs to be displayed on the splicing matrix formed by the display screens, so that the position or the coordinates of the display screen on the original image (more specifically, the position of the image content displayed by the display screen on the original image) needs to be determined, and how to determine the position or the coordinates of the display screen on the original image is determined according to the specific shape of the splicing matrix formed by the display screens is described in various embodiments;
(3) And sending the original image to the display screen according to the coordinates, and displaying the original image on the display screen according to the coordinates or the positions of the display screen corresponding to the sub-images, wherein after the coordinates or the positions of the display screen corresponding to the sub-images are determined, the original image is sent to the display screen, and each sub-image is respectively displayed on the corresponding display screen.
In the application, the splicing matrix formed by splicing the display screens is arranged in the canvas, and the proportion of the original image to the canvas determines the proportion of the original image to be displayed in an enlarged or reduced mode and the proportion of the original image to be displayed in an enlarged or reduced mode. The following is a detailed description in connection with the shape of a particular splice matrix.
Example 1
In the embodiment 1, the display division scheme of the standard screen refers to a display screen formed by splicing a plurality of display screens and a conventional display screen, and specifically as shown in fig. 2, m×n display screens are both natural numbers greater than 1, M is the number of display screens arranged horizontally, N is the number of display screens arranged vertically, each display screen is used for placing a part of the content of an original image, the display screens are associated with the image content displayed thereon, if the resolution of the original image is w×h, the coordinates of each of the m×n display screens on the original image need to be determined so as to determine the corresponding relation between the original image and the image displayed by the display screen, so as to distribute the image content, the coordinates of each display screen on the original image are M 'N' (x (M-1): W/M, y (N-1): H/N, W: W/M, H/N), wherein M 'N' represents a part of the content of the original image, if the resolution of the original image is w×h, the coordinates of each display screen on the original image are represented by the x, and the x represents the vertical coordinate of a certain point of the original image, and the x represents the vertical coordinate of the original image of the pixel. When determining a corner of a display screen, in this embodiment, coordinates of a point in the upper left corner, and a width and a height of the display screen are selected, a position of the display screen on an original image (i.e., where a content displayed on each display screen is located on the original image) can be determined, and when determining a position of each display screen on the original image, cutting of the original image is performed, and the cut images are distributed to different display screens for display, so that a spliced image which is finally composed of contents displayed on each display screen is obtained.
Example 2
In contrast to the conventional special-shaped spliced display screen, which is a splicing method in the conventional special-shaped spliced display screen, in which the display screens are not blocked, as shown in fig. 8, 9 and 10, the unconventional special-shaped spliced display screen is a display method in which the display screens are blocked (as shown in example 3 and fig. 11), and the conventional special-shaped display screen is as follows: the present embodiment employs P display screens, where P is a natural number greater than 1, and the resolution of the original image is w×h, where W represents pixels of the original image in the lateral direction and H represents pixels of the original image in the longitudinal direction. The specific method comprises the following steps:
it should be noted that, because the special-shaped spliced display screen is formed by setting a plurality of display screens on a canvas, in embodiment 2 and embodiment 3, the coordinates of each display screen arranged on the canvas can be determined, and the specific method is not described herein, and after the specific coordinates of each display screen are determined, the position of the display screen on the original image (i.e. what position the image content displayed by the display screen is on the original image) cannot be determined because the placement position of the display screen may be inclined, so that the position of the display screen relative to the original image needs to be determined first, then the original image content needs to be cut and then distributed to each display screen, and the specific steps are as follows.
1) After the coordinates of the display screen in the canvas are determined, as shown in fig. 3, calculating a minimum circumscribed rectangle of one display screen in the special-shaped splicing matrix, wherein the minimum circumscribed rectangle is shown by a dotted line frame part in fig. 3, the width of the minimum circumscribed rectangle is w1, the height is h1, wherein w1=wcosα+h sinα, the height h1=wsinα+h cosα, wherein α is an included angle between the spliced screen and the x-axis in a reverse direction, 0 degree is less than or equal to α is less than or equal to 90 degrees, w is the width of the display screen, and h is the height of the display screen;
2) As shown in fig. 4, the display screen in step 1) is rotated counterclockwise by α, and then a minimum circumscribed rectangle as shown by a dashed box in fig. 4 is calculated, where the width of the minimum circumscribed rectangle is w2, the height is h2, where w2=w1×cosα+h1×sinα, and the height h2=w1×sinα+h1×cosα, and 0° is less than or equal to α is less than or equal to 90 °;
3) Obtaining the minimum circumscribed rectangle of the minimum circumscribed rectangle in the step 2), wherein the width of the minimum circumscribed rectangle is w3, the height of the minimum circumscribed rectangle is h3, w3 = w 2x cos alpha+h2 x sin alpha, the height of the minimum circumscribed rectangle is h3 = w 2x sin alpha+h2 x cos alpha, and the minimum circumscribed rectangle is used for cutting to obtain the display content of the maximum dotted line frame shown in fig. 5, wherein the display content is more than or equal to 0 DEG and less than or equal to 90 DEG;
4) According to the proportion of the original image and the display screen, calculating the actual coordinate position of the display screen in the original image (namely, the position of the content displayed by each display screen in the original image), cutting the original image to obtain the display content (the content in the solid line frame in fig. 6) in the display screen, namely, obtaining the sub-images displayed in the display screen, wherein the number of the sub-images is equal to the number of the display screens, and the actual coordinate position of the display screen in the original image needs to be determined one by one; the specific calculation mode is as follows: the width of the display screen on the original image (the width of the content displayed on the display screen on the original image) w4=w3xl1, the height of the display screen on the original image (the height of the content displayed on the display screen on the original image) h4=h3xl2, wherein L1 is the ratio of the original image to the canvas on the width, L2 is the ratio of the original image to the canvas on the height, wherein l1=w/W ', l2=h/H', W represents the pixels of the original image on the width, H represents the pixels of the original image on the height, W 'represents the pixels of the canvas on the width, and H' represents the pixels of the canvas on the height;
5) Rotating the sub-image in the step 4) clockwise, wherein the rotation angle is alpha, and the rotation angle alpha is related to the graph which the user wants to display, and generally, the angle alpha is more than or equal to 0 DEG and less than or equal to 90 DEG, so as to obtain the play content of the final display screen shown in fig. 7;
6) According to the method, the contents of the original images to be displayed on other display screens are sequentially cut, namely, the positions of all the sub-images are determined, and after the cutting of the contents displayed on all the display screens is completed, the sub-images obtained by cutting the original images can be sent to display equipment so as to be displayed in the display equipment, and the sub-images can be specifically shown as a fishbone diagram shown in fig. 8, or other special-shaped splicing matrixes shown in fig. 9 and 10, or the like.
Example 3
The method in embodiment 3 is applicable to a conventional shaped tiled display screen and an unconventional shaped tiled display screen, and the unconventional shaped tiled display screen is shown in fig. 11. The embodiment is the same as embodiment 2 in that the specific position coordinates of the display screen forming the special-shaped spliced display screen or the special-shaped spliced matrix on the canvas are known, in this embodiment, 6 display screens are put into the fishbone shape shown in fig. 11, an external square is used as the canvas to determine the coordinates and the angle of the display screen, and in specific implementation, the same as embodiment 2, the canvas and the original image may not be in one-to-one correspondence relationship, so that in order to enable the original image to be accurately displayed on the display screen, the coordinates of the display screen on the original image need to be found according to the proportional relationship between the original image and the display screen. After the specific coordinates of each display screen on the canvas are determined, the placement positions of the display screens may be inclined, so that the coordinates of each display screen on the original image, or the coordinates of the content displayed by each display screen on the original image, are required to be determined, and then the content of the original image is cut and then distributed to each display screen, which is specifically as follows.
According to the size of canvas forming the special-shaped pattern, the size of an original image and the coordinates (x, y, w and h) of a plurality of display screens on the canvas, wherein x represents the abscissa of a point at a certain angle on the display screen, y represents the ordinate of a point at a certain angle on the display screen, w is the width of the display screen, h is the height of the display screen, and the coordinate of each display screen on the original image is calculated;
specifically, step 1, constructing a canvas with any width and height, splicing six patterns with the upper left corner as the origin, wherein each pattern in the six patterns is displayed on one display screen, so in the scheme provided by the embodiment of the application, 6 display screens are needed for displaying the fishbone pattern, the six display screens are respectively the display screen 1, the display screen 2, the display screen 3, the display screen 4, the display screen 5 and the display screen 6, the six display screens are spliced into the fishbone pattern, the upper left corner of the canvas is taken as the origin, and the coordinates of each display screen on the canvas are obtained according to the position relation of the six display screens in the canvas.
And 2, determining the position of each display screen on the original image according to the proportional relation between the preset original image and the canvas.
In this embodiment, 6 display screens are put in the shape shown in fig. 11, and an external square is used as a canvas to determine the coordinates and angles of the display screens, and then the coordinates of the display screens on the original image are found out according to the proportional relationship between the original image and the canvas.
As shown in FIG. 12, at this time, the 6 display screens are not rotated, the upper left corner of the canvas is the origin 0, and the coordinates of the display screen 1 at a certain corner (the upper left corner may be used in the implementation) in the canvas are (x, y); the canvas is rotated by α degrees, and at this time, since the display screen is disposed on the canvas, which corresponds to the display screen also rotated by α degrees along with the canvas, as shown in fig. 13, the position of the display screen 1 at the upper left corner in the canvas is changed, and the new coordinates are (x 1, y 1), and since the origin coordinates of the canvas are also changed, it is necessary to calculate the new coordinates.
As shown in fig. 14, in the O1 coordinate system, the coordinates of a are (X, y), after the canvas rotates by an angle α, the coordinates of B are (cos α×sin α×y, sin α×o1C-sin α×cos α×y), where O1C is the distance from the point O1 to the point C, the O1 coordinate system represents the coordinate system before the canvas and the display screen rotate, a is the coordinate of one corner of the display screen before the canvas rotates, the O2 coordinate system represents the coordinate system after the canvas and the display screen rotate, B is the coordinate of the display screen after the canvas rotates corresponding to a, C represents the intersection point of the X-axis positive direction of the O1 coordinate system and the X-axis positive direction of the O2 coordinate system, and in specific implementation, the upper left corner of the display screen is not necessarily limited, and the specific coordinates of the display screen can be determined by calculating the coordinates of any one corner of the display screen in combination with the width and the height of the display screen.
And 3, through the steps, the position relation between the display screen and the rotated canvas is defined, and then according to the proportional relation between the current size of the canvas and the original image, for example, the coordinate of the upper left corner of the display screen after the rotation of the canvas is (x 1, y 1), the proportion of the canvas to the original image is 1:2; the coordinates of the display screen on the canvas are (2 x1,2y 1), i.e. the canvas and the original image need to be changed into a one-to-one correspondence, so that the accuracy of the coordinate positions can be ensured.
Step 4, repeating the steps 2 and 3, finding out the coordinates of the left upper right corner, the left lower right corner and the left lower left corner of the display screen 1 after the original image rotates, and further finding out the content of the corresponding position of the display screen 1 on the original image;
step 5, repeating the steps 2, 3 and 4 to find out the other display screens, such as a display screen 2, a display screen 3, a display screen 4, a display screen 5 and a display screen 6, corresponding to the original image;
and 6, pushing the content in the original image to different display devices according to preset display screen numbers, so that each display device displays corresponding different content.
When the system is used, a user can select standard splicing or special-shaped splicing, wherein the standard splicing is the method in the embodiment 1 of the application, and the special-shaped splicing is the method in the embodiments 2 and 3 of the application. The user may then operate according to specific needs.
In the solutions provided by the embodiments of the present application, the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the scheme provided by the application, a plurality of special-shaped spliced patterns are stored in a database of the image processing output device, for example, the special-shaped spliced patterns comprise fishbones, reverse fishbones and the like, the image processing output device can be connected with an input device (such as a keyboard and a mouse), or the image processing output device can be provided with an input module (such as a touch display screen), the image processing output device receives splicing pattern information input by a user through the input device or the input module, and the user can finish information confirmation of the spliced patterns according to any one of the following two modes.
Mode one: the splicing style information input by the user selects the style of the finally spliced special-shaped pattern from the database, the style of the finally spliced special-shaped pattern is obtained, for example, if the name of the splicing style input by the user is "fishbone map", the image processing output device determines that the style of the finally spliced special-shaped pattern is the shape of the fishbone map from the database according to the name of the fishbone map, and then the splicing style of the fishbone map is found.
Mode two: the user inputs basic information of the spliced patterns, inputs the basic information into the database, generates patterns of the finally spliced special-shaped patterns, for example, if the user inputs information such as names of the spliced patterns, sizes of canvases, the number of display screens, coordinates and angles of the screens on the canvases, and the like, the image processing output equipment inputs the information into the database, and determines the patterns of the finally spliced special-shaped patterns.
After determining the pattern of the finally spliced image, when the image processing output equipment receives the input original image, the coordinates of the display screen on the original image are obtained according to the size of the original image, the size of the canvas, the number of display screens and the coordinates on the canvas, which form the special-shaped pattern. By using the technical scheme of the application, the problem that the high-definition image content cannot be displayed on a low-cost display screen in the prior art can be solved, and the content display of the special-shaped image can be realized.
Claims (8)
1. An image display splicing method is characterized in that: the method comprises the following steps:
s1, splitting an original image according to the number of display screens forming a split joint matrix to obtain a plurality of sub-images, wherein the number of the sub-images is equal to that of the display screens;
s2, determining coordinates of a display screen corresponding to each sub-image in the original image;
s3, sending the original image to a display screen for display according to the coordinates;
the step S2 specifically comprises the following steps: the coordinate of each display screen on the original image is M 'N' (x (M-1) W/M, y (N-1) H/N, W: W/M, H: H/N), wherein M 'N' represents the coordinate of the display screen on the original image, x represents the horizontal coordinate of any angle of the display screen, y represents the vertical coordinate of the angle, W is the width of the display screen, H is the height of the display screen, M is the number of the display screens which are transversely arranged, N is the number of the display screens which are longitudinally arranged, W is the transverse pixels of the original image, and H is the longitudinal pixels of the original image;
the step S2 includes the steps of:
s21, determining a minimum circumscribed rectangle of a display screen, wherein the width of the minimum circumscribed rectangle is w1, the height of the minimum circumscribed rectangle is h1, wherein w1=w is cosα+h is sin α, the height of the minimum circumscribed rectangle is h1=w is sin α+h is cos α, wherein α is an included angle between the display screen and the x-axis in the opposite direction, 0 degree is less than or equal to α is less than or equal to 90 degrees, w is the width of the display screen, and h is the height of the display screen;
s22, carrying out anticlockwise rotation alpha on the display screen in the step S21, and solving the minimum circumscribed rectangle of the minimum circumscribed rectangle in the step S21, wherein the width of the minimum circumscribed rectangle is w2, the height is h2, w2 = w1 x cos alpha + h1 x sin alpha, the height is h2 = w1 x sin alpha + h1 x cos alpha, and the angle alpha is more than or equal to 0 and less than or equal to 90 degrees;
s23, the minimum circumscribed rectangle in the step S22 is further calculated, the width of the minimum circumscribed rectangle is w3, the height of the minimum circumscribed rectangle is h3, wherein w3=w2, cos alpha+h2, sin alpha, and the height of the minimum circumscribed rectangle, h3=w2, sin alpha+h2, cos alpha, and alpha is more than or equal to 0 degrees and less than or equal to 90 degrees;
s24, cutting the display screen by using the minimum circumscribed rectangle in the step S23;
s25, calculating the coordinate position of the display screen according to the proportion of the original image and the display screen, and cutting the original image to obtain a plurality of sub-images;
s26, rotating the sub-image in the step S25 clockwise, wherein the rotation angle is alpha, and alpha is more than or equal to 0 degrees and less than or equal to 90 degrees.
2. The image display stitching method according to claim 1, wherein: the step S25 specifically includes: the width w4=w3xl1 of the display screen on the original image, the height h4=h3xl2 of the display screen on the original image, wherein L1 is the ratio of the original image to the canvas on the width, L2 is the ratio of the original image to the canvas on the height, wherein l1=w/W ', l2=h/H', W is the number of pixels of the original image in the transverse direction, H is the number of pixels of the original image in the longitudinal direction, W 'represents the pixel width of the canvas, and H' represents the pixel height of the canvas.
3. The image display stitching method according to claim 1, wherein: the step S2 specifically comprises the following steps:
s21', rotating the canvas by an alpha angle, wherein the coordinate of any angle B of the display screen is (cosalpha x+sinalpha X y, sinalpha O1C-sinalpha x+cosalpha y), wherein O1C is the distance from a point O1 to a point C, the O1 coordinate system represents the coordinate system before the rotation of the canvas and the display screen, the O2 coordinate system represents the coordinate system after the rotation of the canvas and the display screen, C represents the intersection point of the X axis positive direction of the O1 coordinate system and the X axis positive direction of the O2 coordinate system, X is the abscissa of the A point before the rotation of the canvas corresponding to B, and y is the ordinate of the A point before the rotation of the canvas corresponding to B;
s22', determining the coordinates of the display screen on the original image according to the proportional relation between the current canvas size and the original image;
s23', repeating the steps, finding out the coordinates of each corner of all the display screens, and determining the content correspondingly displayed on the original image by the display screens.
4. The image display stitching method of claim 3 wherein: and the point B in the display screen is a coordinate point of the display screen at the upper left corner of the display screen in the canvas.
5. An image mosaic display system, characterized in that: an apparatus for an image mosaic display method according to any one of claims 1 to 4, said image mosaic display system comprising: the image processing output device is used for determining the position of the display screen on an original image, cutting the original image to obtain a plurality of sub-images, and sending the sub-images to the display device, wherein the display device is used for receiving the display content of the image and displaying the display content on the display screen.
6. The image tiled display system according to claim 5, wherein: the image processing output device cuts, rotates and zooms the original image to generate sub-images, and sends the sub-images to each display screen.
7. The image mosaic display system according to claim 5 or 6, wherein: the display screen in the display device is formed into a splicing matrix which is rectangular or special-shaped.
8. The image mosaic display system according to claim 5 or 6, wherein: the image processing output device is a computer.
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