CN112734866A - Image processing method, terminal and storage medium - Google Patents

Image processing method, terminal and storage medium Download PDF

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Publication number
CN112734866A
CN112734866A CN202011553449.2A CN202011553449A CN112734866A CN 112734866 A CN112734866 A CN 112734866A CN 202011553449 A CN202011553449 A CN 202011553449A CN 112734866 A CN112734866 A CN 112734866A
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image
processed
colors
color
polychrome
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Chinese (zh)
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刘明辉
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Nubia Technology Co Ltd
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Nubia Technology Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/90Determination of colour characteristics
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/002D [Two Dimensional] image generation
    • G06T11/001Texturing; Colouring; Generation of texture or colour
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00Image enhancement or restoration
    • G06T5/50Image enhancement or restoration by the use of more than one image, e.g. averaging, subtraction

Abstract

The invention provides an image processing method, a terminal and a storage medium, aiming at the problem of poor image display effect of the existing electronic price tag, the image processing method comprises the following steps: acquiring an image to be processed; based on the image to be processed, displaying according to the standard color of the target equipment, converting the corresponding color in the image to be processed into the standard color to obtain at least two multi-color images, and generating corresponding multi-color image data; the standard colors of the target device comprise at least three colors, and each multicolor image comprises at least two standard colors in the standard color display of the target device; and sending the polychrome data to the target equipment, so that the target equipment displays the corresponding target image based on the polychrome data, thereby improving the display effect of the to-be-processed image on the target equipment and improving the user experience by converting the to-be-processed image into a polychrome relevant to the standard color of the target equipment.

Description

Image processing method, terminal and storage medium
Technical Field
The present invention relates to the field of image processing technologies, and in particular, to an image processing method, a terminal, and a storage medium.
Background
With the rise of concepts such as intelligent retail, intelligent business, unmanned stores and the like, the application of electronic price tags is becoming more extensive in recent years. People also see the shadow of electronic price tags in more and more scenes in daily life. The electronic price tag is an intelligent terminal device for displaying commodity information. The electronic price tag can acquire commodity display information from the management equipment through the communication assembly and display the commodity display information, so that eyes of people can be conveniently watched, and in order to save electricity, an electronic ink screen is usually adopted, the electronic ink screen can only monotonously display a specified color, usually a double-color black-white screen or a three-color black-white-red screen or a three-color black-white-yellow screen, and a picture acquired by the management equipment is not suitable for direct display of the electronic price tag, so that abnormal display can be caused.
Disclosure of Invention
The invention aims to solve the technical problems that the existing electronic price tag display has poor display effect on multicolor pictures and poor user experience, and provides an image processing method aiming at the technical problems, wherein the image processing method comprises the following steps:
acquiring an image to be processed;
based on an image to be processed, displaying according to the standard color of target equipment, converting the corresponding color in the image to be processed into the standard color to obtain at least two multi-color images, and generating corresponding multi-color image data; the standard colors of the target device comprise at least three, and each multicolor chart comprises at least two standard colors in the standard color display of the target device;
and sending the polychrome data to a target device, and enabling the target device to display a corresponding target image based on the polychrome data.
Optionally, before the acquiring the image to be processed, the method further includes:
and removing the transparency information in the original image to obtain the image to be processed.
Optionally, the generating corresponding polychrome data includes:
and converting the polychrome graph corresponding to the same image to be processed into the same polychrome graph data.
Optionally, the polychrome data further includes size information corresponding to the image to be processed.
Optionally, the sending the polychrome data to a target device, so that the target device displays a corresponding target image based on the polychrome data includes:
and sending the polychrome data to target equipment, and superposing corresponding polychrome in the polychrome data by the target equipment to form and display a target image.
Optionally, the standard colors of the target device include three colors, including black, white, and a third color X; the converting the corresponding color in the image to be processed into the standard color based on the image to be processed and displayed according to the standard color of the target device to obtain at least two polychrome maps comprises:
and converting corresponding colors in the image to be processed to obtain a first multicolor image and a second multicolor image, wherein the first multicolor image comprises black and white, and the second multicolor image comprises white and X.
Optionally, the converting corresponding colors in the image to be processed to obtain a first polychrome map includes:
converting colors of which the RGB values are less than or equal to the intermediate value in the image to be processed into black, and converting the rest colors into white to obtain the first multicolor chart; or the like, or, alternatively,
and converting the colors of which the RGB values are more than or equal to the intermediate value in the image to be processed into white, and converting the rest colors into black to obtain the first multicolor chart.
Optionally, the converting corresponding colors in the image to be processed to obtain a second polychrome map includes:
and converting colors of which the RGB values are more than or equal to the intermediate value or less than or equal to the intermediate value in the image to be processed into white, and converting the rest colors into X colors to obtain the second multicolor chart.
The embodiment of the invention also provides a terminal, which comprises a processor, a memory and a communication bus;
the communication bus is used for realizing connection communication between the processor and the memory;
the processor is configured to execute one or more programs stored in the memory to implement the steps of the image processing method described above.
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores one or more programs, and the one or more programs are executable by one or more processors to implement the steps of the image processing method described above.
Advantageous effects
The invention provides an image processing method, a terminal and a storage medium, aiming at the problem of poor image display effect of the existing electronic price tag, the image processing method comprises the following steps: acquiring an image to be processed; based on the image to be processed, displaying according to the standard color of the target equipment, converting the corresponding color in the image to be processed into the standard color to obtain at least two multi-color images, and generating corresponding multi-color image data; the standard colors of the target device comprise at least three colors, and each multicolor image comprises at least two standard colors in the standard color display of the target device; and sending the polychrome data to the target equipment, so that the target equipment displays the corresponding target image based on the polychrome data, thereby improving the display effect of the to-be-processed image on the target equipment and improving the user experience by converting the to-be-processed image into a polychrome relevant to the standard color of the target equipment.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic diagram of a hardware structure of an alternative mobile terminal for implementing various embodiments of the present invention;
FIG. 2 is a diagram of a wireless communication system for the mobile terminal shown in FIG. 1;
FIG. 3 is a basic flowchart of an image processing method according to a first embodiment of the present invention;
FIG. 4 is a schematic diagram of a multicolor chart data format in an embodiment of the invention;
FIG. 5 is a flowchart illustrating a detailed image processing method according to a second embodiment of the present invention;
fig. 6 is a schematic composition diagram of a terminal according to a third embodiment of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.
The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.
Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile terminal in detail with reference to fig. 1:
the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).
WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics Processing Unit 1041 Processing image data of a still image or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.
The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, an inertial sensor, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.
Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.
The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.
Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.
In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.
Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.
Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.
The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.
The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).
The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.
Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.
Based on the above mobile terminal hardware structure and communication network system, the present invention provides various embodiments of the method.
First embodiment
Fig. 3 is a basic flowchart of an image processing method provided in this embodiment, where the image processing method includes:
s301, acquiring an image to be processed;
s302, displaying according to the standard color of target equipment based on the image to be processed, converting the corresponding color in the image to be processed into the standard color to obtain at least two multi-color images, and generating corresponding multi-color image data; the standard colors of the target device comprise at least three colors, and each multicolor image comprises at least two standard colors in the standard color display of the target device;
and S303, transmitting the polychrome data to the target device, and enabling the target device to display the corresponding target image based on the polychrome data.
The electronic price tag is an intelligent terminal device for displaying commodity information. Typically consisting of a control component, a communication component, a storage component and a display component.
Electronic price tags also typically require a companion administrative device. The management device is a device capable of simultaneously managing a plurality of price tags, and stores the information of the managed price tags and the information of the corresponding commodities which the price tags need to be displayed.
The electronic price tag acquires commodity display information from the management equipment through the communication assembly and stores the commodity display information into the storage assembly, and then the pictures in the storage assembly are displayed to a user through the display assembly, so that a commodity information display function is realized. Wherein, the merchandise display information may include: commodity price, place of production, date of production, important characteristic parameters, and the like.
In the embodiments of the present invention, the electronic price tag is equivalent to a target device, and the display mode adopted by the electronic price tag is an electronic ink screen only having a standard color display, and the electronic ink screen generally has only three or four colors, such as a three-color black-white-red screen and a three-color black-white-yellow screen, which respectively indicate that the electronic ink screen can only display three colors of black, white, and red, and can only display three colors of black, white, and yellow. In the image to be processed, the image is basically a colorful image composed of three colors of RGB, each pixel of the colorful image has different RGB values, the numerical value range is (0,0,0) to (255 ), the colorful image respectively represents decimal values of three colors of red, green and blue, and the colorful image is eight digits under binary system; for example, the three-color RGB values for some commonly used colors correspond to: white: RGB (255 ); black: RGB (0,0, 0); red: RGB (255,0, 0); green: RGB (0,255, 0); blue color: RGB (0, 255); cyan: RGB (0,255,255) purple: RGB (255,0, 255). And adjusting the magnitude of the relevant numerical value is equivalent to adjusting the brightness of the corresponding three primary colors in the color, and various colors with different shades can be obtained.
S301, acquiring an image to be processed, wherein the image to be processed contains rich colors and needs to be processed according to the condition of target equipment. Wherein, the image to be processed can be the original image; if the original image contains transparency information, for example, the original image is a PNG image, and the transparency information may affect the accuracy of color adjustment, the original image may be converted into an image to be processed, in which the transparency information is removed. That is, in some embodiments, before acquiring the image to be processed, the method may further include: and removing the transparency information in the original image to obtain the image to be processed.
In S302, based on the image to be processed, displaying according to the standard color of the target device, converting the corresponding color in the image to be processed into the standard color, obtaining at least two multi-color maps, and generating corresponding multi-color map data. The standard color display of the target equipment limits the display effect of the target image and only can be displayed according to a plurality of standard colors given by the target equipment; in order to accurately and beautifully process an image to be processed into a proper target image for display, the color in the image to be processed is converted into a standard color corresponding to target equipment and is converted into at least two multi-color maps according to a conversion rule, wherein the color in each multi-color map belongs to the standard color of the target equipment; if the standard colors in the target device comprise at least three, the colors in the multicolor chart comprise at least two standard colors, and the multicolor chart is a two-color chart; in addition, in particular, in at least two multi-color maps obtained by processing the same image to be processed, the colors in each multi-color map are not completely the same, that is, part of the colors in each multi-color map may be consistent, but not all the colors may be consistent, so that the display of the final target image may be ensured, and there is a clear difference between different colors. In other words, the conversion rules between polychrome maps are different. For example, if the included three standard colors in the target device are black, white, red, then the at least two multi-color maps may be a black-and-white map, a red-and-white map, or a black-and-red map, respectively, etc. In general, in some embodiments, the standard colors of the target device include three, including black, white, and a third color X, respectively; based on the image to be processed, displaying according to the standard color of the target device, and converting the corresponding color in the image to be processed into the standard color to obtain at least two multi-color maps specifically may include: and converting corresponding colors in the image to be processed to obtain a first multicolor image and a second multicolor image, wherein the first multicolor image comprises black and white, and the second multicolor image comprises white and X. Wherein converting the corresponding color in the image to be processed to obtain the first polychrome map may comprise:
converting colors of which the RGB values are less than or equal to the intermediate value in the image to be processed into black, and converting the rest colors into white to obtain a first multicolor chart; or the like, or, alternatively,
and converting the colors of which the RGB values are more than or equal to the intermediate value in the image to be processed into white, and converting the rest colors into black to obtain a first multicolor chart. This conversion rule indicates that, for the first multicolor chart, i.e., the black-white chart, the dark colors (including black) therein can be converted into black, and the rest of the non-dark colors are white; or the light color (including white) is converted into white, and the other non-light color is converted into black. The RGB value is equal to or less than the median, and may be a specific value, i.e. 127 to 128 median values of 0 to 255, or a range, e.g. 125 to 130. According to the conversion rule, a first multicolor image with clear black and white can be obtained.
In addition, converting the corresponding color in the image to be processed to obtain the second multicolor map may include:
and converting colors of which the RGB values are more than or equal to the intermediate value or less than or equal to the intermediate value in the image to be processed into white, and converting the rest colors into X colors to obtain a second multicolor chart. This conversion rule indicates that the darkest and lightest colors in the primary color chart are converted into white, and the other colors are converted into X colors, so that the display of the intermediate color can be highlighted. The first multicolor image is used for highlighting dark colors or light colors, and the second multicolor image is used for highlighting intermediate colors, so that the superposition effect of the first multicolor image and the second multicolor image can more accurately and reasonably display the target image.
After obtaining the polychrome map, the polychrome map data corresponding to the polychrome map can be sent to the target device, wherein the polychrome map data at least comprises data reflecting the content of the polychrome map and other data; the processed polychrome maps should be together for the same image to be processed, i.e. generating corresponding polychrome map data may comprise: and converting the polychrome graph corresponding to the same image to be processed into the same polychrome graph data. At the time of transmission, transmission is also performed as a whole.
The packing form of the polychrome data can refer to fig. 4, which shows a polychrome data packing file including two polychrome maps; or, the polychrome data may also be obtained by directly synthesizing a polychrome image obtained by processing the image to be processed into a target image, and transmitting the target image to the target device as polychrome data.
In some embodiments, the polychrome data may further include size information corresponding to the image to be processed, or size information corresponding to the processed target image, where the size information may be determined based on a size relationship between the image to be processed and the target image.
And S303, transmitting the polychrome data to the target device, and enabling the target device to display the corresponding target image based on the polychrome data. The target device, that is, the electronic price tag, can only display colors of specified colors due to the limitation of the number of standard colors, so that a target image obtained by synthesizing multicolor images obtained after color conversion can be displayed. For the synthesis of the multicolor images, the multicolor images can be superposed to form a target image for display; that is, sending the polychrome data to the target device, so that the target device displays the corresponding target image based on the polychrome data may specifically include: and sending the polychrome data to a target device, and superposing corresponding polychrome in the polychrome data by the target device to form a target image and display the target image. The superimposing of the multicolor maps means that the display colors in different multicolor maps are displayed in an overlapping manner according to a certain rule, for example, an optional rule is: displaying the display colors at the same position in each multicolor image in a deeper display mode, for example, in two multicolor images, one is a black-white double-color image, and the other is a red-white double-color image, when the black pixel point is displayed in the black-white double-color image, no matter what color is displayed in the red-white double-color image, the black pixel point is also displayed in the target image; and if the pixel point displayed as white in the black-white double-color image is displayed as red in the red-white double-color image, the pixel point is also displayed as red in the target image. That is, black is the darkest color, has the widest coverage, and covers all other colors, thereby displaying black; white is the lightest color, has the widest coverage, and is covered by all other colors, thereby displaying other colors.
The embodiment provides an image processing method, which aims at the problem that the effect of displaying an image by using an existing electronic price tag is poor, and comprises the following steps: acquiring an image to be processed; based on the image to be processed, displaying according to the standard color of the target equipment, converting the corresponding color in the image to be processed into the standard color to obtain at least two multi-color images, and generating corresponding multi-color image data; the standard colors of the target device comprise at least three colors, and each multicolor image comprises at least two standard colors in the standard color display of the target device; and sending the polychrome data to the target equipment, so that the target equipment displays the corresponding target image based on the polychrome data, thereby improving the display effect of the to-be-processed image on the target equipment and improving the user experience by converting the to-be-processed image into a polychrome relevant to the standard color of the target equipment.
Second embodiment
Fig. 5 is a flowchart of a refinement of an image processing method according to a second embodiment of the present invention, where the image processing method includes:
s501, acquiring an original image.
The original image contains various color information, cannot be directly displayed by the target device, and needs to be further processed to obtain an image which meets the display effect of the target device, namely, a target image. In this embodiment, the standard colors of the target device include three colors, which are black, white, and red, respectively. One skilled in the art will recognize that the standard colors of the target device may also include other colors and that other standard color combinations are within the scope of the present disclosure.
S502, preprocessing the original image to obtain an image to be processed.
The preprocessing process includes deleting transparency information in the original image and representing colors in the image to be processed with RGB three-color data.
S503, converting colors of the image to be processed to obtain two multi-color images which are respectively a black-white image and a red-white image.
The conversion rule is that the colors of RGB in the image to be processed, which are all larger than or equal to the intermediate value, are converted into black, and the other colors are converted into white, so that a black-white image is obtained; and converting the colors of the yellow to-be-processed image, wherein the RGB values of the yellow to-be-processed image are both larger than the intermediate value and smaller than the intermediate value, into white, and converting the other colors into red to obtain a red-white chart.
And S504, generating polychrome data and sending the polychrome data to the target equipment.
The multicolor image data includes at least data contents reflecting the black-white color chart and the red-white color chart, and may further include other information such as an image size.
And S505, analyzing the polychrome data by the target equipment to obtain a polychrome, and superposing the polychrome to obtain a target image for displaying.
The superimposed display is performed by displaying the display colors at the same positions in the black-and-white and red-and-white diagrams in a deeper display mode, that is, black covers red and white, red covers white, and the rest is white.
The embodiment provides an image processing method, which improves the display effect of an image to be processed on a target device and improves the user experience by converting the image to be processed into a multicolor image related to the standard color of the target device.
Third embodiment
Fig. 6 is a schematic diagram of a terminal according to a third embodiment of the present invention, where the terminal includes a processor 61, a memory 62 and a communication bus 63;
the communication bus 63 is used for realizing connection communication between the processor 61 and the memory 62;
the processor 61 is configured to execute one or more programs stored in the memory 62 to implement the steps of the image processing method in the foregoing embodiments, which are not described herein again.
Fourth embodiment
The present embodiment also provides a computer-readable storage medium, where one or more computer programs are stored in the computer-readable storage medium, and the one or more computer programs can be executed by one or more processors to implement the steps of the image processing method in the foregoing embodiments, which are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. An image processing method, characterized in that the image processing method comprises:
acquiring an image to be processed;
based on an image to be processed, displaying according to the standard color of target equipment, converting the corresponding color in the image to be processed into the standard color to obtain at least two multi-color images, and generating corresponding multi-color image data; the standard colors of the target device comprise at least three, and each multicolor chart comprises at least two standard colors in the standard color display of the target device;
and sending the polychrome data to a target device, and enabling the target device to display a corresponding target image based on the polychrome data.
2. The image processing method of claim 1, prior to said acquiring the image to be processed, further comprising:
and removing the transparency information in the original image to obtain the image to be processed.
3. The image processing method of claim 1, wherein the generating corresponding polychrome data comprises:
and converting the polychrome graph corresponding to the same image to be processed into the same polychrome graph data.
4. The image processing method according to claim 3, wherein the polychrome data further includes size information corresponding to the image to be processed.
5. The image processing method of claim 1, wherein said sending the polychrome data to a target device, causing the target device to display a corresponding target image based on the polychrome data comprises:
and sending the polychrome data to target equipment, and superposing corresponding polychrome in the polychrome data by the target equipment to form and display a target image.
6. The image processing method according to any one of claims 1 to 5, wherein the standard color of the target device includes three colors including black, white, and a third color X; the converting the corresponding color in the image to be processed into the standard color based on the image to be processed and displayed according to the standard color of the target device to obtain at least two polychrome maps comprises:
and converting corresponding colors in the image to be processed to obtain a first multicolor image and a second multicolor image, wherein the first multicolor image comprises black and white, and the second multicolor image comprises white and X.
7. The image processing method of claim 6, wherein said converting corresponding colors in the image to be processed to obtain a first polychrome map comprises:
converting colors of which the RGB values are less than or equal to the intermediate value in the image to be processed into black, and converting the rest colors into white to obtain the first multicolor chart; or the like, or, alternatively,
and converting the colors of which the RGB values are more than or equal to the intermediate value in the image to be processed into white, and converting the rest colors into black to obtain the first multicolor chart.
8. The image processing method of claim 6, wherein said converting corresponding colors in the image to be processed to obtain a second polychrome map comprises:
and converting colors of which the RGB values are more than or equal to the intermediate value or less than or equal to the intermediate value in the image to be processed into white, and converting the rest colors into X colors to obtain the second multicolor chart.
9. A terminal, characterized in that the terminal comprises a processor, a memory and a communication bus;
the communication bus is used for realizing connection communication between the processor and the memory;
the processor is configured to execute one or more programs stored in the memory to implement the steps of the image processing method according to any one of claims 1 to 8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores one or more programs which are executable by one or more processors to implement the steps of the image processing method according to any one of claims 1 to 8.
CN202011553449.2A 2020-12-24 2020-12-24 Image processing method, terminal and storage medium Pending CN112734866A (en)

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