CN108124195B - Multilayer image composite processing method and device and display system - Google Patents
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Abstract
The invention discloses a multilayer image composite processing method, a device and a display system, wherein the device comprises: the main mixer is used for receiving the multilayer images, superposing the multilayer images to generate a composite image, and converting the resolution of the composite image to be higher than a first set resolution for output; the auxiliary mixer is used for receiving the multilayer images, superposing the multilayer images to generate a composite image, and converting the resolution of the composite image to be lower than a second set resolution for output; wherein the main mixer and the auxiliary mixer operate in parallel. The invention has the advantages of high running speed, stable performance, flexible configuration, simple integral structure, small volume, cost saving, and capability of batch production, and solves the problems of complex structure and unstable performance of the recombiner in the traditional video playing chip.
Description
Technical Field
The invention relates to a multilayer image composite processing method, a multilayer image composite processing device and a display system.
Background
With the rapid development of networks, people can acquire various audio and video resources by more and more convenient methods, and electronic device products with video playing functions are very important, wherein a video playing chip plays a key role, and how to well realize a multilayer image recombiner in the chip becomes a key focus of academic circles. At present, a multilayer image recombiner in a video playing chip aims at simplifying the circuit structure, improving the running speed, improving the stability and reducing the cost.
However, the multilayer image recombiner in these video playing chips also has certain problems, which are mainly reflected in: the recombiner is single, few inventions can integrate circuits with multiple advantages into one circuit, and some recombiners have relatively complex structures, high hardware cost and low operation speed.
In summary, in the prior art, an effective solution is not yet available for the problems of complex circuit implementation, low running speed, unstable performance, high hardware cost, and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a multilayer image composite processing method, a device and a display system.
The invention provides a multilayer image compound processing method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multi-layered image composition processing method, comprising:
receiving a multilayer image, and superposing the multilayer image to generate a composite image;
converting the resolution of the composite image into a resolution which is greater than or equal to a first set resolution and outputting the converted resolution; and simultaneously converting the resolution of the composite image to be less than or equal to a second set resolution for output.
Further, the multi-layer image includes at least a background image layer, one or more still image layers, and one or more video layers.
Further, the superimposing the multi-layered images to generate the composite image includes:
placing a background image layer on the bottom layer, covering the static image layer with the background image layer, and covering the static image layer with the video layer;
when a plurality of static image layers exist, superposing each static image layer according to a first sequence;
when a plurality of video layers exist, each video layer is superposed according to a picture-in-picture mode; wherein the stacking order of the picture-in-picture adopts a second order.
Further, converting the resolution of the composite image to be greater than or equal to a first set resolution for output includes:
keeping the number of pixels of the composite image unchanged, and calculating a first resolution according to a preset image output size to enable the composite image to be output according to the first resolution;
if the first resolution is smaller than the first set resolution, linear interpolation is carried out on the pixels of the composite image, and the first resolution is recalculated until the first resolution is larger than or equal to the first set resolution.
Further, converting the resolution of the composite image to be less than or equal to a second set resolution for output includes:
keeping the number of pixels of the composite image unchanged, and calculating a second resolution according to a preset image output size to enable the composite image to be output according to the second resolution;
and if the second resolution is higher than the second set resolution, performing down-sampling on the pixels of the composite image, and recalculating the second resolution until the second resolution is less than or equal to the second set resolution.
Further, the method may further comprise controlling the receiving state of the multi-layered image to place one or more image layers in an enabled state or a disabled state.
Further, the multi-layer images are received by a plurality of threads respectively, and each layer of image is controlled by the corresponding thread.
A second object of the present invention is to provide a multilayer image composition processing apparatus.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multilayer image composition processing apparatus comprising:
the main mixer is used for receiving the multilayer images, superposing the multilayer images to generate a composite image, and converting the resolution of the composite image to be higher than a first set resolution for output; the auxiliary mixer is used for receiving the multilayer images, superposing the multilayer images to generate a composite image, and converting the resolution of the composite image to be lower than a second set resolution for output; wherein the main mixer and the auxiliary mixer operate in parallel.
The system further comprises a first cross switch and a second cross switch which are used for controlling the enabling state of the multilayer images, wherein one end of the first cross switch is connected with the multilayer image assembly line, and the other end of the first cross switch is connected with the main mixer; one end of the second cross switch is connected with the multilayer image production line, and the other end of the second cross switch is connected with the auxiliary mixer.
It is a third object of the present invention to provide a multi-layered image composite display system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multi-layer image composite display system comprises a display device and the multi-layer image composite processing device, wherein a main mixer and an auxiliary mixer are simultaneously connected with the display device.
The invention has the beneficial effects that:
(1) according to the multilayer image composite processing method, the multilayer image composite processing device and the display system are high in operation speed, stable in performance and flexible in configuration.
(2) According to the multilayer image composite processing method, the multilayer image composite processing device and the display system, the whole structure is simple, the size is small, the cost is saved, and batch production can be performed.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a plan view of the main mixer of the present invention;
FIG. 3 is a plan view of the layered structure of the main mixer of the present invention;
FIG. 4 is an image and video module architecture diagram of the present invention;
fig. 5 is a cross-bar switch connection configuration of the present invention.
The specific implementation mode is as follows:
the invention will be further illustrated with reference to the following examples and drawings:
it should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example 1:
the object of this embodiment 1 is to provide a multilayer image composition processing method.
In order to achieve the purpose, the invention adopts the following technical scheme:
as shown in figure 1 of the drawings, in which,
a multi-layered image composition processing method, comprising:
step (1): receiving a multilayer image, and superposing the multilayer image to generate a composite image;
step (2): converting the resolution of the composite image into a resolution which is greater than or equal to a first set resolution and outputting the converted resolution; and simultaneously converting the resolution of the composite image to be less than or equal to a second set resolution for output.
In step (1) of this embodiment, the multi-layer image includes at least one background image layer, one or more still image layers, and one or more video layers.
In step (1) of the present embodiment, the generating a composite image by superimposing the multilayer images includes:
placing a background image layer on the bottom layer, covering the static image layer with the background image layer, and covering the static image layer with the video layer;
when a plurality of static image layers exist, superposing each static image layer according to a first sequence;
when a plurality of video layers exist, each video layer is superposed according to a picture-in-picture mode; wherein the stacking order of the picture-in-picture adopts a second order.
In step (2) of the present embodiment, converting the resolution of the composite image to be greater than or equal to the first set resolution for output includes:
keeping the number of pixels of the composite image unchanged, and calculating a first resolution according to a preset image output size to enable the composite image to be output according to the first resolution;
if the first resolution is smaller than the first set resolution, linear interpolation is carried out on the pixels of the composite image, and the first resolution is recalculated until the first resolution is larger than or equal to the first set resolution.
In step (2) of the present embodiment, converting the resolution of the composite image to be less than or equal to the second set resolution for output includes:
keeping the number of pixels of the composite image unchanged, and calculating a second resolution according to a preset image output size to enable the composite image to be output according to the second resolution;
and if the second resolution is higher than the second set resolution, performing down-sampling on the pixels of the composite image, and recalculating the second resolution until the second resolution is less than or equal to the second set resolution.
This embodiment may be further improved, wherein the method further comprises controlling a receiving state of the multi-layered image to enable or disable one or more image layers.
It is noted that the multi-layered images are received by a plurality of threads, respectively, each controlled by its corresponding thread.
An object of the present embodiment is to provide a computing device.
A customer service policy making apparatus based on random forest and logistic regression, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the program, including:
step (1): receiving a multilayer image, and superposing the multilayer image to generate a composite image;
step (2): converting the resolution of the composite image into a resolution which is greater than or equal to a first set resolution and outputting the converted resolution; and simultaneously converting the resolution of the composite image to be less than or equal to a second set resolution for output.
The present embodiments also provide a computer-readable storage medium.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, performs the steps of:
step (1): receiving a multilayer image, and superposing the multilayer image to generate a composite image;
step (2): converting the resolution of the composite image into a resolution which is greater than or equal to a first set resolution and outputting the converted resolution; and simultaneously converting the resolution of the composite image to be less than or equal to a second set resolution for output.
The term "computer-readable storage medium" should be taken to include a single medium or multiple media containing one or more sets of instructions; it should also be understood to include any medium that is capable of storing, encoding or carrying a set of instructions for execution by a processor and that cause the processor to perform any of the methods of the present invention.
Example 2:
the object of embodiment 2 is to provide a multilayer image composite processing apparatus.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multilayer image composition processing apparatus comprising:
as shown in figure 4 of the drawings,
the main mixer is used for receiving the multilayer images, superposing the multilayer images to generate a composite image, and converting the resolution of the composite image to be higher than a first set resolution for output; the auxiliary mixer is used for receiving the multilayer images, superposing the multilayer images to generate a composite image, and converting the resolution of the composite image to be lower than a second set resolution for output; wherein the main mixer and the auxiliary mixer operate in parallel.
The embodiment can be further improved, and further comprises a first cross switch and a second cross switch for controlling the enabling state of the multilayer image, wherein one end of the first cross switch is connected with the multilayer image pipeline, and the other end of the first cross switch is connected with the main mixer; one end of the second cross switch is connected with the multilayer image production line, and the other end of the second cross switch is connected with the auxiliary mixer.
As shown in fig. 2, a multilayer image compositing processing apparatus, a multilayer image compositor in a high definition/standard definition video playing chip of the embodiment, includes 2 real-time, multi-plane mixers. The main mixer (MIX1) consists of up to 5 layers, respectively: a background layer color plane, a video layer plane, 3 image layer planes; the auxiliary mixer (MIX2) contains up to 5 layers, respectively: one background layer color plane, one video layer plane, 3 image layer planes. Video layer flat content originates from the primary/secondary display processor; the pixel data for two-dimensional image display is directly from the memory, and the pixel data is mixed by the main mixer and the auxiliary mixer after being processed by the display plane pipeline in real time. The main mixer supports full high definition hd (high definition) level resolution processing, and is generally used for the main mode of TV display; the auxiliary mixer supports full Standard Definition (SD) level resolution processing, typically used for auxiliary display modes, including connection to a VCR; the main mixer and the auxiliary mixer provide data for the output stage after processing.
As shown in fig. 3, the order of the multi-layer image and video plane composition of the mixer 1 can be scrambled, and different image and video layers can be arbitrarily combined. As shown in fig. 4, the compositor also combines the remaining components for enhancing the overall display effect of video and image, fig. 4 shows a compositor framework of image and video components of Channel5 (Channel 5), which demonstrates the layered composition of the compositor, including: a BKC (block ground color) layer, a GDP (graphic display pipeline) layer, and a vid (video) layer.
As shown in fig. 4, the data flow and storage access conditions of different modules of the compositor are as follows: the image pipeline reads pixels and associated control information directly from memory; the video input pipeline acquires data from the main video display pipeline and the auxiliary video display pipeline; the real-time processing of the image and video pipeline is realized by programming and controlling a register; GDP1, GDP2, GDP3, GDP4, GDP5, GDP6 generate image data for high definition or standard definition display applications; the digital mixer 1(mixer 1) mixes the video plane layer, the image plane layer GDP1, GDP2, GDP3 and a background color plane layer; the digital mixer 2(mixer 2) mixes the video plane layer, the image plane layer GDP4, GDP5, GDP6 and one background color plane layer. Since the mixing operation performed by the mixer operates in the RGB color domain, each layer supports RGB signals (3 × 12 bits).
As shown in fig. 4, the present patent utilizes a crossbar interconnect structure to perform coding control on the hierarchical structure of the multi-level planes. The result of the multi-level arrangement is that the remaining plane levels, except for the background level plane, can be programmed, and each plane level can be independently enabled or disabled, this operation being done in a register.
Configurable crossbar interconnect structure as shown in fig. 5, the output of OUT0-OUTn (OUT0-OUTn from bottom to top respectively) and the state (enable or disable) of each layer are sequentially selected through a select terminal and a control terminal, so as to perform coding control on the hierarchical structure of the multi-layer plane, as a result, the remaining plane layers except the background layer plane can be programmed, and each plane layer can be independently enabled or disabled.
As shown in fig. 4, all sub-modules may be directly controlled by hardware registers, all registers may be read, but all registers may not necessarily be written; the image layer plane is addressed and organized based on a linked list, and sub-module registers are set through a memory; each layer plane supports a special bit-field mapping format; if mixer 1 and mixer 2 are enabled, each layer plane starts reading data from the memory.
The multilayer image recombiner in the high-definition/standard-definition video playing chip of the embodiment comprises 2 real-time and multi-plane mixers. The main mixer (MIX1) consists of up to 5 layers, respectively: a background layer color plane, a video layer plane, 3 image layer planes; the auxiliary mixer (MIX2) contains up to 5 layers, respectively: one background layer color plane, one video layer plane, 3 image layer planes. Video layer flat content originates from the primary/secondary display processor; the pixel data for two-dimensional image display is directly from the memory, and the pixel data is mixed by the main mixer and the auxiliary mixer after being processed by the display plane pipeline in real time. The main mixer supports full high definition hd (high definition) level resolution processing, and is generally used for the main mode of TV display; the auxiliary mixer supports full Standard Definition (SD) level resolution processing, typically used for auxiliary display modes, including connection to a VCR; the main mixer and the auxiliary mixer provide data for the output stage after processing.
The multilayer image recombiner in the high-definition/standard-definition video playing chip has the advantages of high running speed, stable performance, flexible configuration, simple overall structure, small volume and cost saving, can be produced in batch and solves the problems of complex structure and unstable performance of the recombiner in the traditional video playing chip.
Example 3:
the object of this embodiment 3 is to provide a multilayer image composite display system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multi-layer image composite display system comprises a display device and the multi-layer image composite processing device, wherein a main mixer and an auxiliary mixer are simultaneously connected with the display device.
The invention has the beneficial effects that:
(1) according to the multilayer image composite processing method, the multilayer image composite processing device and the display system are high in operation speed, stable in performance and flexible in configuration.
(2) According to the multilayer image composite processing method, the multilayer image composite processing device and the display system, the whole structure is simple, the size is small, the cost is saved, and batch production can be performed.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (6)
1. A multi-layer image composition processing method, comprising:
receiving a multilayer image, and superposing the multilayer image to generate a composite image; the multi-layer image at least comprises a background image layer, one or more static image layers and one or more video layers; different images and video layers can be combined randomly; further comprising controlling a receiving state of the multi-layered image to place one or more image layers in an enabled state or a disabled state;
converting the resolution of the composite image into a resolution which is greater than or equal to a first set resolution and outputting the converted resolution; simultaneously converting the resolution of the composite image into a resolution less than or equal to a second set resolution for output;
superimposing the multi-layer images to generate a composite image comprises: placing a background image layer on the bottom layer, covering the static image layer with the background image layer, and covering the static image layer with the video layer; when a plurality of static image layers exist, superposing each static image layer according to a first sequence; when a plurality of video layers exist, each video layer is superposed according to a picture-in-picture mode; wherein the superposition sequence of the pictures in the picture adopts a second sequence;
converting the resolution of the composite image to be greater than or equal to a first set resolution for output includes: keeping the number of pixels of the composite image unchanged, and calculating a first resolution according to a preset image output size to enable the composite image to be output according to the first resolution; if the first resolution is smaller than the first set resolution, linear interpolation is carried out on the pixels of the composite image, and the first resolution is recalculated until the first resolution is larger than or equal to the first set resolution.
2. The method of claim 1, wherein converting the resolution of the composite image to less than or equal to a second set resolution for output comprises:
keeping the number of pixels of the composite image unchanged, and calculating a second resolution according to a preset image output size to enable the composite image to be output according to the second resolution;
and if the second resolution is higher than the second set resolution, performing down-sampling on the pixels of the composite image, and recalculating the second resolution until the second resolution is less than or equal to the second set resolution.
3. The method of claim 1, wherein the multiple layers of images are received by a plurality of threads, respectively, each layer of images being controlled by its corresponding thread.
4. A multilayer image composition processing apparatus according to claim 1, comprising:
the main mixer is used for receiving the multilayer images, superposing the multilayer images to generate a composite image, and converting the resolution of the composite image to be higher than a first set resolution for output; the auxiliary mixer is used for receiving the multilayer images, superposing the multilayer images to generate a composite image, and converting the resolution of the composite image to be lower than a second set resolution for output; wherein the main mixer and the auxiliary mixer operate in parallel.
5. The apparatus of claim 4, further comprising a first crossbar and a second crossbar for controlling the multi-layer image enable state, the first crossbar having one end connected to the multi-layer image pipeline and another end connected to the main mixer; one end of the second cross switch is connected with the multilayer image production line, and the other end of the second cross switch is connected with the auxiliary mixer.
6. A multilayer image composition display system comprising a display device and the multilayer image composition processing device according to claim 5, wherein the main mixer and the sub mixer are simultaneously connected to the display device.
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| CN102572304A (en) * | 2011-12-13 | 2012-07-11 | 广东威创视讯科技股份有限公司 | Image addition processing method and device |
| CN105590303A (en) * | 2014-10-20 | 2016-05-18 | Tcl集团股份有限公司 | Method and system for increasing image resolution |
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