CN107770404B - Implicit imaging communication method and apparatus based on alpha channel parameters - Google Patents
Implicit imaging communication method and apparatus based on alpha channel parameters Download PDFInfo
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- CN107770404B CN107770404B CN201610692270.2A CN201610692270A CN107770404B CN 107770404 B CN107770404 B CN 107770404B CN 201610692270 A CN201610692270 A CN 201610692270A CN 107770404 B CN107770404 B CN 107770404B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The implicit imaging communication method based on alpha channel parameters that the invention discloses a kind of, comprising: receive information to be transmitted and alpha channel parameters；The information to be transmitted and the alpha channel parameters are integrated, to generate adjustment signal；Receive image parameter；Described image parameter and the adjustment signal are integrated, to generate picture signal；Show described image signal；Described image signal is acquired and is detected, to extract the information to be transmitted, and exports the information to be transmitted.Through the invention, to solve the problems, such as of the existing technology need using the variation of R, G, B or associated parameter value of image come modulation intelligence.
Description
Technical field
The present invention relates to the technical field of visible light communication more particularly to it is a kind of based on alpha channel parameters it is implicit at
As communication means and device.
Background technique
In general, when information embedded images signal to be transmitted being carried out imaging communication transmission, traditional method is to utilize
The variation of R, G, B of image or associated parameter value carrys out modulation intelligence.
Due to needing to be adjusted to R, G, B or associated parameter value of image, so will picture signal display
On can generate variation and influence normal display, i.e., user can have found the abnormal display of image when watch image, and reduce sight
See the impression of image.Therefore, imaging communication transmission still has improved space.
Summary of the invention
The implicit imaging communication method and dress that the main purpose of the present invention is to provide a kind of based on alpha channel parameters
It sets, to solve of the existing technology to need to modulate letter using the variation of R, G, B or associated parameter value of image
The problem of breath.
To solve the above problems, the embodiment of the present invention provides a kind of implicit imaging communication side based on alpha channel parameters
Method, comprising: receive information to be transmitted and alpha channel parameters；The information to be transmitted and the alpha channel parameters is whole
It closes, to generate adjustment signal；Receive image parameter；Described image parameter and the adjustment signal are integrated, to generate image letter
Number；Show described image signal；Described image signal is acquired and is detected, to extract the information to be transmitted, and it is defeated
The information to be transmitted out.
The embodiment of the present invention provides a kind of implicit imaging communication device based on alpha channel parameters, comprising: information processing
Unit receives information to be transmitted and alpha channel parameters, and the information to be transmitted and the alpha channel parameters is integrated,
To generate adjustment signal；Image integration unit connects the information process unit, receives image parameter, and described image is joined
It is several to be integrated with the adjustment signal, to generate picture signal；Display unit connects described image integral unit, shows the figure
As signal；Acquisition and detection unit, connect the display unit, described image signal are acquired and are detected, to extract
The information to be transmitted, and export the information to be transmitted.
According to the technique and scheme of the present invention, by the way that information to be transmitted and the integration of alpha channel parameters are generated adjustment signal,
Image parameter and adjustment signal integration are generated into picture signal again, and after showing display image signals, to described image signal
It is acquired and detects, to extract the information to be transmitted.In this way, which the present embodiment haves no need to change original image signal
RGB parameter, efficiently solve R, G, B or associated parameter value of the existing technology needed using image
Variation carrys out the problem of modulation intelligence, and is handled when information extraction to be transmitted simply and simultaneously it is also ensured that the normal of image is shown
Show and human eye vision effect can not discover image pixel out alpha channel parameters variation, can effectively realize implicit
Transmission.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the implicit imaging communication method according to an embodiment of the present invention based on alpha channel parameters；
Fig. 2 is another process of the implicit imaging communication method according to an embodiment of the present invention based on alpha channel parameters
Figure；
Fig. 3 is the schematic diagram of the implicit imaging communication device according to an embodiment of the present invention based on alpha channel parameters；
Fig. 4 is another signal of the implicit imaging communication device according to an embodiment of the present invention based on alpha channel parameters
Figure.
Specific embodiment
Main thought of the invention is, based on by the way that information to be transmitted and the integration of alpha channel parameters are generated adjustment
Signal, then image parameter and adjustment signal integration are generated into picture signal, and after showing display image signals, to described image
Signal is acquired and detects, to extract the information to be transmitted.In this way, which the present embodiment haves no need to change original image
The RGB parameter of signal, and handle when information extraction to be transmitted simply and simultaneously it is also ensured that the normal display of image, Yi Jiren
Eye visual effect can not discover the variation of the alpha channel parameters of image pixel out, can effectively realize implicit transmission.
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with drawings and the specific embodiments, to this
Invention, which is done, to be further described in detail.
According to an embodiment of the invention, providing a kind of implicit imaging communication method based on alpha channel parameters.
Fig. 1 is the flow chart of the implicit imaging communication method according to an embodiment of the present invention based on alpha channel parameters.
In step s 102, information to be transmitted and alpha channel parameters are received.Wherein, the alpha channel parameters include
In original image, and the value range of alpha channel parameters is 0~1.Also, there is corresponding each pixel in image
Lightness.If the channel the alpha numerical value of a pixel is 0%, it is exactly fully transparent, and numerical value is 100% and means
Completely it is opaque.
In step S104, the information to be transmitted and the alpha channel parameters are integrated, to generate adjustment signal.
That is, on the basis of original image alpha channel parameters, such as by way of coding, information to be transmitted is embedded in
(modulation) into alpha channel parameters, i.e., alpha channel parameters change with the variation of modulation intelligence.Also, this insertion
The rule of (modulation) has determined the corresponding relationship of alpha channel parameters with the information to be transmitted carried, to realize utilization
Carrying of the alpha channel parameters to information to be transmitted.
In step s 106, image parameter is received.In the present embodiment, described image parameter be original image R (red,
It is red), G (green, green), B (blue, blue) pixel-parameters, i.e. the three primary colors pixel-parameters of image.
In step S108, described image parameter and the adjustment signal are integrated, to generate picture signal.Namely
It says, the RGB parameter (i.e. image parameter) of original image and the alpha channel parameters for having been inserted into information to be transmitted (is adjusted and believed
Number) be fused together, regenerate new picture signal.
In step s 110, described image signal is shown.That is, for example by display unit by described image signal
(i.e. new picture signal) is shown, to watch to user.In the present embodiment, since image parameter will not be changed (i.e.
The RGB parameter of original image signal) itself, therefore image can normally be shown, and human eye does not find not Chu Lai picture signal yet and has times
What variation.
In step S112, described image signal is acquired and is detected, to extract the information to be transmitted, and it is defeated
The information to be transmitted out.That is, the visible light signal for showing and generating to picture signal carries out imaging acquisition, to figure
As the alpha channel parameters of the pixel in signal are detected, and for example by way of decoding, with from alpha channel parameters
The information to be transmitted is extracted, and exports the information to be transmitted, and then completes communication process.In this way, the present embodiment
It only needs to integrate information to be transmitted and the alpha channel parameters, haves no need to change the RGB parameter of original image signal, and to
Processing is simply and simultaneously it is also ensured that the normal display of image and human eye vision effect can not be discovered when transmitting information extraction
The variation of the alpha channel parameters of image pixel out, can effectively realize implicit transmission.
Fig. 2 is another process of the implicit imaging communication method according to an embodiment of the present invention based on alpha channel parameters
Figure.
In step S202, original image signal is received, to make to extract the channel alpha in picture signal from the original
Parameter, and the alpha channel parameters are exported, and described image parameter is extracted from the original image signal, and export
Described image parameter.That is, first extract alpha channel parameters and image parameter respectively from original image signal, with
Carry out subsequent process of signal transmission.
In step S204, information to be transmitted and alpha channel parameters are received.
In step S206, the information to be transmitted and the alpha channel parameters are integrated, to generate adjustment signal.
In step S208, image parameter is received.
In step S210, described image parameter and the adjustment signal are integrated, to generate picture signal.
In step S212, described image signal is shown.
In step S214, described image signal is acquired and is detected, to extract the information to be transmitted, and it is defeated
The information to be transmitted out.
In the present embodiment, step S204, the detailed operation of S206, S208, S210, S212, S214, can refer to Fig. 1's
The explanation of step S102, S104, S106, S108, S110, S112 of embodiment, therefore details are not described herein.
According to an embodiment of the invention, providing a kind of implicit imaging communication method based on alpha channel parameters.
Fig. 3 is the schematic diagram of the implicit imaging communication device according to an embodiment of the present invention based on alpha channel parameters.Base
Include information process unit 310, image integration unit 320, show in the implicit imaging communication device 300 of alpha channel parameters
Unit 330 and acquisition and detection unit 340.
Information process unit 310 receives information to be transmitted and alpha channel parameters, and by the information to be transmitted with it is described
Alpha channel parameters integration, to generate adjustment signal.
Image integration unit 320 connects the information process unit 310, receives image parameter, and by described image parameter
It is integrated with the adjustment signal, to generate picture signal.
Display unit 330 connects described image integral unit 320, shows described image signal.
Acquisition and detection unit 340 connect the display unit 330, and described image signal is acquired and is detected, with
The information to be transmitted is extracted, and exports the information to be transmitted.
In the present embodiment, information process unit 310, image integration unit 320, display unit 330 and acquisition and detection
The detailed operation of unit 340, can refer to the explanation of the embodiment of Fig. 1, therefore details are not described herein.
Fig. 4 is another signal of the implicit imaging communication device according to an embodiment of the present invention based on alpha channel parameters
Figure.Implicit imaging communication device 400 based on alpha channel parameters include information process unit 410, image integration unit 420,
Display unit 430, acquisition and detection unit 440, the first parameter extraction unit 450 and the second parameter extraction unit 460.
Information process unit 410 receives information to be transmitted and alpha channel parameters, and by the information to be transmitted with it is described
Alpha channel parameters integration, to generate adjustment signal.
Image integration unit 420 connects the information process unit 410, receives image parameter, and by described image parameter
It is integrated with the adjustment signal, to generate picture signal.
Display unit 430 connects described image integral unit 420, shows described image signal.
Acquisition and detection unit 440 connect the display unit 430, and described image signal is acquired and is detected, with
The information to be transmitted is extracted, and exports the information to be transmitted.
First parameter extraction unit 450 connects the information process unit 410, receives original image signal, with from described
Original makes to extract the alpha channel parameters in picture signal, and exports the alpha channel parameters to the information process unit
410。
Second parameter extraction unit 460 connect described image integral unit 420, receive the original image signal, with from
Described image parameter is extracted in the original image signal, and exports described image parameter to described image integral unit 420.
In the present embodiment, information process unit 410, image integration unit 420, display unit 430 and acquisition and detection
The detailed operation of unit 440, the first parameter extraction unit 450 and the second parameter extraction unit 460, can refer to the reality of Fig. 1,2,3
The explanation of example is applied, therefore details are not described herein.
All it is the however, the present invention is not limited thereto by taking picture signal as an example in foregoing embodiments, also may be used at video letter
Number transmission on, and be described in detail and still can refer to the explanations of foregoing embodiments, therefore details are not described herein.
In conclusion according to the technique and scheme of the present invention, by the way that information to be transmitted and the integration of alpha channel parameters are generated
Adjustment signal, then image parameter and adjustment signal integration are generated into picture signal, and after showing display image signals, to described
Picture signal is acquired and detects, to extract the information to be transmitted.In this way, the present embodiment have no need to change it is original
The RGB parameter of picture signal, and handled when information extraction to be transmitted it is simple and simultaneously it is also ensured that the normal display of image, with
And human eye vision effect can not discover the variation of the alpha channel parameters of image pixel out, can effectively realize implicit transmission.
The above description is only an embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (4)
1. a kind of implicit imaging communication method based on alpha channel parameters, which comprises the following steps:
Original image signal is received, to extract alpha channel parameters from the original image signal, and exports the alpha
Channel parameters, and image parameter is extracted from the original image signal, and export described image parameter, described image parameter
For the rgb pixel parameter of original image；
Receive information to be transmitted and the alpha channel parameters；
The information to be transmitted and the alpha channel parameters are integrated, to generate adjustment signal；
Receive described image parameter；
Described image parameter and the adjustment signal are integrated, to generate picture signal；
Show described image signal；
Described image signal is acquired and is detected, to extract the information to be transmitted, and exports the information to be transmitted.
2. the implicit imaging communication method according to claim 1 based on alpha channel parameters, which is characterized in that described
Alpha channel parameters are included in the original image, and the value range of alpha channel parameters is 0~1.
3. a kind of implicit imaging communication device based on alpha channel parameters characterized by comprising
First parameter extraction unit, link information processing unit receive original image signal, from the original image signal
Alpha channel parameters are extracted, and export the alpha channel parameters to the information process unit；
Second parameter extraction unit connects image integral unit, receives the original image signal, to believe from the original image
Image parameter is extracted in number, and exports described image parameter and gives described image integral unit, and described image parameter is original image
The parameter of RGB；
The information process unit, receives information to be transmitted and the alpha channel parameters, and by the information to be transmitted and institute
The integration of alpha channel parameters is stated, to generate adjustment signal；
Described image integral unit, connects the information process unit, receives described image parameter, and by described image parameter with
The adjustment signal integration, to generate picture signal；
Display unit connects described image integral unit, shows described image signal；
Acquisition and detection unit, connect the display unit, described image signal are acquired and are detected, described to extract
Information to be transmitted, and export the information to be transmitted.
4. the implicit imaging communication device according to claim 3 based on alpha channel parameters, which is characterized in that described
Alpha channel parameters are included in the original image, and the value range of alpha channel parameters is 0~1.
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| CN104202500A (en) * | 2014-07-23 | 2014-12-10 | 西安空间无线电技术研究所 | High capacity information hiding transmission method with controllable carrier quality |
| CN104658030A (en) * | 2015-02-05 | 2015-05-27 | 福建天晴数码有限公司 | Secondary image mixing method and apparatus |
| WO2015106635A1 (en) * | 2014-01-15 | 2015-07-23 | The Hong Kong University Of Science And Technology | Unobtrusive data embedding in information displays and extracting unobtrusive data from camera captured images or videos |
| CN105187797A (en) * | 2015-09-15 | 2015-12-23 | 中国人民解放军信息工程大学 | Visible light imaging communication method and apparatus |
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| WO2015106635A1 (en) * | 2014-01-15 | 2015-07-23 | The Hong Kong University Of Science And Technology | Unobtrusive data embedding in information displays and extracting unobtrusive data from camera captured images or videos |
| CN104202500A (en) * | 2014-07-23 | 2014-12-10 | 西安空间无线电技术研究所 | High capacity information hiding transmission method with controllable carrier quality |
| CN104658030A (en) * | 2015-02-05 | 2015-05-27 | 福建天晴数码有限公司 | Secondary image mixing method and apparatus |
| CN105187797A (en) * | 2015-09-15 | 2015-12-23 | 中国人民解放军信息工程大学 | Visible light imaging communication method and apparatus |
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