CN107148775B - Image processing method, apparatus, electronic device and readable storage medium - Google Patents

Abstract

The present invention relates to an image processing method and terminal. The method includes: receiving display images frame by frame; determining an occlusion pattern according to each frame display image, and each frame occlusion pattern occludes a part of the corresponding frame display image; Superimpose the corresponding frame occlusion pattern to determine the output image; wherein, each pixel of the display image of each frame appears at least once in the output image of N frames continuously output, and in the output image of N frames continuously output, each frame of the occlusion pattern is not occluded. The displayed image satisfies the visual stop principle, where N is the number of frames of the displayed image output per second. In the embodiment of the present invention, by setting a blocking pattern for the displayed image of each frame, according to the frequency of the output signal of the terminal, combined with the principle of visual stop, under the condition that the user's needs are met, the displayed image of the terminal can be prevented from being secretly photographed, so as to ensure that the user uses the terminal. safety.

Description

Image processing method, apparatus, electronic device and readable storage medium

technical field

The present invention relates to the field of communication technologies, and in particular, to an image processing method and a terminal.

Background technique

Terminals are gradually deepening and widely used in people's daily life. In addition to the function of calling, the terminal also has functions such as personal information management, browser, Global Positioning System ("GPS" for short), and email. The terminal can provide users with various application services through software operation and content services, and through the support of the communication network, it becomes a powerful complex that integrates calls, text messages, network access, and film and television entertainment. Therefore, people's requirements for the safe use of terminals are also getting higher and higher.

However, at present, the security protection of the terminal is mainly completed by a third-party platform, and cannot be completed based on the terminal itself.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide an image processing method and terminal, by setting an occlusion pattern on a displayed image. Combined with the principle of visual stop, the anti-candid shooting of the terminal display content is realized. It ensures the security of the user using the terminal.

In a first aspect, an embodiment of the present invention provides an image processing method, which is applied to a portable electronic device, the electronic device has a display, and the method includes:

Receive display images frame by frame;

determining an occlusion pattern of each frame of the display image, the occlusion pattern occludes part of the pixels of the display image;

An image is output frame by frame, where the output image is a superposition of the display image and an occlusion pattern corresponding to the display image.

In a first possible implementation manner of the first aspect, each pixel of the display image appears at least once in the output image continuously output in N frames and is not blocked by the blocking pattern.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the determining of the occlusion pattern of the displayed image includes:

Move the nth frame of the occlusion pattern along the first direction to obtain the n+1th frame of the occlusion pattern, wherein the part of the pixels of the display image covered by the n+1th frame of the occlusion pattern is the part of the display image that is not covered by the nth frame of the occlusion pattern. Part of the pixel, n is a positive integer from 1 to N-1.

With reference to the first aspect, or any one of the first to second possible implementations of the first aspect, in a third possible implementation, when the blocking pattern is a grid pattern, the method further includes :

The width of the grid pattern and the pitch of the grid pattern are determined.

In a fourth possible implementation manner of the first aspect, the method further includes:

An operation instruction input by the user is received, where the operation instruction is used to instruct to open the shielding pattern.

In a second aspect, an embodiment of the present invention provides an image processing apparatus, and the apparatus includes:

The receiving module is used to receive and display images frame by frame;

a determining module, configured to determine an occlusion pattern of each frame of the display image, the occlusion pattern occludes part of the pixels of the display image;

An output module, configured to output images frame by frame, where the output image is a superposition of the display image and the occlusion pattern corresponding to the display image.

In a first possible implementation manner of the second aspect, each pixel of the display image is not blocked by the blocking pattern at least once in the images continuously output in N frames.

With reference to the first possible implementation manner of the second aspect, in the second possible implementation manner, the determining module is specifically configured to:

Move the nth frame of the occlusion pattern along the first direction to obtain the n+1th frame of the occlusion pattern, wherein the part of the pixels of the display image covered by the n+1th frame of the occlusion pattern is the part of the display image that is not covered by the nth frame of the occlusion pattern. Part of the pixel, n is a positive integer from 1 to N-1.

With reference to the second aspect, or any one of the possible implementation manners of the first to second aspect of the second aspect, in a third possible implementation manner, when the blocking pattern is a grid pattern, the determining module further for determining the width of the grid pattern and the spacing of the grid pattern.

In a fourth possible implementation manner of the second aspect, the receiving module is further configured to receive an operation instruction input by a user, where the operation instruction is used to instruct to open the shielding pattern.

In a third aspect, an embodiment of the present invention provides a portable electronic device, where the portable electronic device includes:

a display for displaying images;

memory for storing instructions;

a processor for invoking instructions stored in the memory to implement:

Receive display images frame by frame;

determining an occlusion pattern of each frame of the display image, the occlusion pattern occludes part of the pixels of the display image;

An image is output frame by frame, where the output image is a superposition of the display image and an occlusion pattern corresponding to the display image.

In a fourth aspect, embodiments of the present invention provide a non-volatile computer-readable storage medium storing one or more programs, the one or more programs including instructions, the instructions when included in a portable electronic device having a display Device execution causes the portable electronic device to perform the following events:

Receive display images frame by frame;

determining an occlusion pattern of each frame of the display image, the occlusion pattern occludes part of the pixels of the display image;

An image is output frame by frame, where the output image is a superposition of the display image and an occlusion pattern corresponding to the display image.

Based on the above technical solutions, in the image processing method and terminal provided by the embodiments of the present invention, the terminal sets the occlusion pattern for the displayed image of each frame, according to the frequency of the output signal of the terminal, combined with the principle of visual stop, in the case of satisfying user needs, It can prevent the displayed image of the terminal from being photographed secretly, so as to ensure the security of the user using the terminal.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic flowchart of an image processing method according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a display image in another embodiment of the present invention

3A is a schematic diagram of an nth frame occlusion pattern in another embodiment of the present invention;

3B is a schematic diagram of an n+1th frame occlusion pattern in another embodiment of the present invention;

Fig. 4 is the schematic diagram that the occlusion pattern is distributed in part of the display image;

FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

6 is a schematic structural diagram of a determination module in a terminal according to another embodiment of the present invention;

7 is a schematic structural diagram of a terminal according to another embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In the implementation of the present invention, user equipment (User Equipment, "UE" for short) is also called a terminal (Terminal). The terminal performs image processing on the display images output frame by frame, and superimposes the occlusion pattern on the display images of each frame. The occlusion patterns in consecutive frames change in a certain order, and the terminal outputs the display image after superimposing the occlusion patterns frame by frame. Depending on the frequency of the terminal outputting images, the displayed image cannot be completely displayed at a certain moment, but combined with the visual stop principle, the user can see the complete displayed image. In this embodiment of the present invention, the terminal may be a device with a display, such as a mobile phone, a tablet computer, and a TV.

For convenience of description, the technical solution of the embodiment of the present invention will be described in detail below with reference to FIG. 1 . It should be understood that this is only an example for illustrating the technical solutions of the embodiments of the present invention, and does not constitute any limitation to the embodiments of the present invention.

FIG. 1 is a schematic flowchart of an image processing method according to an embodiment of the present invention. The execution subject of the image processing method 100 shown in FIG. 1 is a terminal, and the method 100 includes:

110. Receive display images frame by frame;

120. Determine an occlusion pattern of each frame of the displayed image, and the occlusion pattern occludes a part of the displayed image;

130. Output images frame by frame, where the output image is a superposition of the display image and the occlusion pattern corresponding to the display image.

The terminal receives and displays images frame by frame at a preset frame rate. The terminal outputs images frame by frame at a preset frame rate, and each output image is continuously output in N frames. The display images in the output images continuously output for N frames are the same. Each pixel of the display image of each frame appears at least once in the output images output continuously in N frames and is not blocked by the blocking pattern. In the output image of N frames continuously output, the displayed image of the unobstructed part of the occlusion pattern of each frame satisfies the visual stop principle. N is a positive integer.

Specifically, in this embodiment of the present invention, the terminal outputs images according to a preset frame rate. The terminal superimposes the occlusion pattern corresponding to the display image on each frame of the display image. The display image and the occlusion pattern corresponding to the display image are superimposed and synthesized to form an output image. The occlusion pattern corresponding to each frame of display image only occludes part of the pixels of the frame of display image. Each pixel of the display image of each frame is not occluded by the occlusion pattern at least once in the output images continuously output by the N frames. When the preset frame rate satisfies the user's visual stop time, and N frames of images are output continuously, combined with the visual stop principle or the visual stop principle, the user can see the next frame of the output image, the previous frame of the output image is still retained in the user , the user can see the full display image.

The occlusion patterns of different frames may be different, and may be changed in a certain order.

In 110, the display image may be a display image that the terminal needs to output. The terminal receives the display image to be output frame by frame.

At 120, the occlusion pattern may be used to occlude part of the information of the displayed image. The terminal determines an occlusion pattern for each frame of displayed image.

In the embodiment of the present invention, the occlusion pattern of each frame may occlude some pixels of the display image of the corresponding frame. The occlusion patterns of consecutive frames can be different and can be changed in a certain order. According to the number of frames of the image output by the terminal in one second, it is determined that each pixel of the displayed image is not blocked by the blocking pattern at least once in the continuous frame output image. In order to meet user requirements, the displayed image in each frame that is not blocked by the blocking pattern satisfies the visual stop principle, so that the user can see the complete displayed image.

Wherein, in this embodiment of the present invention, N is the number of frames of output images output by the terminal per second.

In 130, the terminal outputs an image frame by frame, and the output image is a superposition of the display image and the occlusion pattern corresponding to the display image.

Therefore, the technical solution of the embodiment of the present invention discloses that a blocking pattern is set for the display image of each frame, and a shooting device that does not match the output frame rate of the terminal cannot obtain the display content of the terminal by shooting. The technical solutions of the embodiments of the present invention can protect personal privacy, can prevent images displayed on the terminal from being photographed secretly, and can ensure the security of users using the terminal.

In the embodiment of the present invention, the shielding pattern includes a regular-shaped pattern or an irregular-shaped pattern.

Optionally, each pixel of the display image is not occluded by the occlusion pattern at least once in the N frames of consecutively outputted output images.

Optionally, the occlusion patterns corresponding to the display images of different frames occlude the contents of different parts of the display images.

Optionally, as another embodiment of the present invention, determining the occlusion pattern of the displayed image includes:

Move the nth frame occlusion pattern along the first direction to obtain the n+1th frame occlusion pattern. Wherein, the partial pixels of the display image blocked by the occlusion pattern of the n+1th frame may be the partial pixels of the display image not blocked by the occlusion pattern of the nth frame, and n is a positive integer from 1 to N-1.

In the embodiment of the present invention, n is the previous frame signal in the continuously received frame signal, and n+1 is the frame signal after the nth frame signal in the continuously received frame signal. The first direction is any direction preset by the terminal. After the terminal determines the occlusion pattern for the nth frame display image, the terminal moves the occlusion pattern of the nth frame display image along the preset first direction. The moved occlusion pattern is used as the occlusion pattern of the n+1th frame display image. The pixels of the display image not blocked by the n+1th frame of the blocking pattern may be all or part of the pixels of the display image blocked by the nth frame of the blocking pattern.

The technical solution of the present invention is described below by taking the terminal outputting 60 frames of images per second, and taking the occlusion pattern as a horizontal grid bar as an example, when the width of the horizontal grid bar and the transparent bar in the occlusion pattern are the same.

As shown in FIG. 2 , FIG. 3A and FIG. 3B , FIG. 2 is a display image, FIG. 3A is an output image of the nth frame, and FIG. 3B is an output image of the n+1th frame. Pixels not blocked by the blocking pattern in FIGS. 3A and 3B are parts of the transparent strip 310 . When the 20th frame output image output by the terminal is the image shown in FIG. 3A , the information of the displayed image is blocked by the blocking pattern. The terminal moves the blocking pattern that blocks the displayed image of the 20th frame in a certain direction as the blocking pattern of the displayed image of the 21st frame.

It should be understood that, in the embodiment of the present invention, the terminal outputs 60 frames of images per second and the occlusion pattern is a horizontal bar as an example, only to illustrate the technical solution of the present invention, but the technical solution of the present invention is not limited thereto.

It should also be understood that, in this embodiment of the present invention, the images occluded by the occlusion pattern in the output images of different frames may partially overlap. Each pixel of the display image is not occluded by the occlusion pattern at least once in the output images continuously output in N frames.

In the embodiment of the present invention, the shielding pattern is a grid pattern with a regular shape, and the grid pattern may be a pattern of other grid shapes such as a horizontal grid pattern, a vertical grid pattern, or an oblique grid pattern.

It should be noted that, in this embodiment of the present invention, the occlusion patterns in consecutive frames move in a certain direction. The occlusion patterns can be moved in a certain order. For example, it is possible to move at a certain speed.

It should also be understood that, in this embodiment of the present invention, when the occlusion pattern satisfies the conditions: each frame of the occlusion pattern occludes a part of the display image of the corresponding frame, and each pixel of the display image of each frame is not displayed at least once in the output images continuously output by N frames. Occluded by the occlusion pattern, among the output images continuously output by N frames, the displayed image that is not occluded by the occlusion pattern in each frame satisfies the visual stop principle, and N is the number of frames of the displayed image output per second. The occlusion pattern can also move randomly. This is not limited in this embodiment of the present invention.

Optionally, as another embodiment of the present invention, the method 100 further includes: when the blocking pattern is a grid pattern, determining the width of the grid pattern and the spacing of the grid pattern.

In this embodiment of the present invention, when the shielding pattern is a grid pattern, the terminal may determine the width and spacing of the grid pattern. For example, the terminal determines the width and spacing of the grid pattern according to the size of the output display image. In this embodiment, the blocking patterns may be patterns of equal spacing, unequal spacing, equal width and/or unequal width.

Optionally, as another embodiment of the present invention, the method 100 may further include: determining the color of the occlusion pattern in each frame.

In this embodiment of the present invention, the terminal may set a color for each frame of the occlusion pattern. The color of each frame of the occlusion pattern can be a fixed color or a different color.

In this embodiment of the present invention, the terminal may further set different visual effects for the occlusion pattern of each frame. For example, the terminal sets different transparency for the occlusion pattern, or the terminal sets the occlusion pattern as a special effect, for example, a frosted glass effect.

Preferably, in the embodiment of the present invention, when the terminal turns on the occlusion pattern once, the occlusion pattern of each frame of output image output this time is the same color, the same transparency and/or the same special effect, so as to reduce the color and transparency and/or special effect changes to eye irritation for eye protection. When the terminal turns on the occlusion pattern multiple times, the color, transparency and/or special effect of each occlusion pattern may be inconsistent, which is used for the diversity of vision during the user's use and improves the user experience.

In this embodiment of the present invention, the terminal may also adjust the brightness and/or grayscale of the occlusion pattern. For example, the terminal may adjust the brightness of the terminal display screen in combination with the adjustment of the brightness and/or grayscale of the occlusion pattern, and adjust the screen of the terminal display at the same time. The brightness and or grayscale of the occlusion pattern to enhance the user experience.

Optionally, as another embodiment of the present invention, each frame of the occlusion pattern is distributed on a part of the display image or each frame of the occlusion pattern is distributed on the entire display image.

Specifically, the occlusion pattern of each frame may be distributed on the entire display image, or may be distributed on part of the entire display image, that is to say, the terminal occlusion pattern may block the display image in all areas of the display, and may also block part of the display. Display image of the area.

FIG. 4 is a schematic diagram of a display image where a shielding pattern shields a partial area of the display. In Figure 4, the occlusion pattern is distributed in the middle area of the display.

It should be understood that in the embodiments of the present invention, the blocking patterns are distributed in the middle area of the display as an example, only to describe the technical solutions of the embodiments of the present invention in detail, but not to limit the scope of the embodiments of the present invention.

In this embodiment of the present invention, when the blocking pattern blocks the displayed image in a part of the display, the blocking pattern may also be distributed on the top position, bottom position, left position, right position of the display, or any possible position of the display. This is not limited in the embodiments of the present invention.

It should also be understood that the occlusion pattern can be any shape of a regularly shaped pattern or a random shaped pattern.

Optionally, as another embodiment of the present invention, the method further includes: receiving an operation instruction input by a user, where the operation instruction is used to instruct to open the shielding pattern.

Specifically, in this embodiment of the present invention, the terminal receives an instruction input by the user to enable the blocking pattern, so as to set the blocking pattern for each frame of the received display image according to the instruction.

In this embodiment of the present invention, the operation instruction may be triggered by the user pressing a button on the terminal, or may be triggered by a gesture. For example, taking the terminal as a mobile phone as an example, the mobile phone can be triggered to open the blocking pattern according to the user pressing the power button and/or the volume up button; or the mobile phone can be triggered to open the blocking pattern according to the user's turning gesture.

It should be understood that, in this embodiment of the present invention, the terminal may also close the shielding pattern according to an operation instruction input by the user.

It should also be understood that, in this embodiment of the present invention, in addition to being triggered by a user pressing a key on the terminal, the operation instruction may also be triggered by a software switch or a specific program, which is not limited in this embodiment of the present invention.

Therefore, with the image processing method provided by the embodiment of the present invention, the terminal can set a blocking pattern for the displayed image of each frame, according to the frequency of the output signal of the terminal, combined with the principle of visual stop, under the condition of satisfying the user's needs, it can prevent the displayed image from being blocked. To be secretly photographed to ensure the safety of users using the terminal.

The image processing method according to the embodiment of the present invention is described in detail above with reference to FIG. 1 to FIG. 4 , and the terminal according to the embodiment of the present invention will be described in detail below with reference to FIG. 5 to FIG. 8 .

FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention. The terminal 500 shown in FIG. 5 includes a receiving module 510 , a determining module 520 and an outputting module 530 .

a receiving module 510, configured to receive and display images frame by frame;

a determining module, used for determining the occlusion pattern of each frame of the displayed image, and the occlusion pattern occludes a part of the displayed image;

The output module 530 is configured to output images frame by frame, where the output image is a superposition of the display image and the occlusion pattern corresponding to the display image.

Among them, each pixel of each frame of display image is not blocked by the occlusion pattern at least once in the output image of N frames of continuous output, and in the output image of N frames of continuous output, the displayed image of the unobstructed part of the occlusion pattern of each frame satisfies the visual stay In principle, N is a positive integer.

Specifically, in this embodiment of the present invention, the terminal outputs images according to a preset frame rate. The frame rate used by each terminal satisfies the visual stop principle. The determining module 520 processes each frame of the display image received by the receiving module 510, superimposes the occlusion pattern on the display image of each frame, and synthesizes the final output image. The occlusion pattern of each frame can only occlude part of the pixels of the displayed image of the frame. Since the output image includes the display image and the occlusion pattern, in each frame of the output image, since some pixels of the display image are occluded by the occlusion pattern, each frame of the output image may not be able to present the complete display image, and each pixel of the display image in each frame may not be able to present the complete display image. In the output image of N frames continuously output, the unobstructed pattern appears at least once. Combined with the principle of visual stop, the user can see the complete display image. Wherein, the occlusion patterns in the consecutive output frames can be changed in a certain order.

In this embodiment of the present invention, the display image may be a display image that needs to be output by the terminal. The receiving module 510 receives the display images to be output frame by frame. The determining module 520 determines an occlusion pattern for each frame of display image. The occlusion pattern can be used to occlude part of the information of the displayed image.

The occlusion pattern of each frame occludes part of the pixels of the display image of the corresponding frame, and the occlusion patterns of consecutive frames can be changed in a certain order. According to the number of frames of the image output by the terminal in one second, it is determined that each pixel of the displayed image is displayed at least once in the specified continuous frame output image without being blocked by the blocking pattern. Part of the displayed image satisfies the visual stop principle so that the user can see the complete displayed image. That is to say, when the preset frame rate satisfies the user's visual stay time, and N frames of images are output in a row, the user can see the next frame of the image, and the previous frame of the image remains in the user's line of sight, so that the user can See full display image.

Wherein, in the embodiment of the present invention, N is the number of frames of displayed images output by the terminal per second.

The terminal superimposes the display image of each frame and the occlusion pattern of the display image of the corresponding frame to form a final output image.

Therefore, the technical solution of the embodiment of the present invention discloses that a blocking pattern is set for the display image of each frame, and the shooting device that does not match the output frame rate of the terminal cannot obtain the display content of the terminal by shooting, and the technical solution of the embodiment of the present invention can protect the individual Privacy can prevent images displayed by the terminal from being secretly photographed, and can ensure the security of users using the terminal.

In the embodiment of the present invention, the shielding pattern includes a regular-shaped pattern or an irregular-shaped pattern.

Optionally, as another embodiment of the present invention, each pixel of the display image is not occluded by the occlusion pattern at least once in the output images continuously output by N frames.

Specifically, each frame of the occlusion pattern can occlude the content of different parts of the displayed image.

Optionally, in this embodiment of the present invention, the determining module 520 is specifically configured to:

Moving the nth frame of the occlusion pattern along the first direction to obtain the n+1th frame of the occlusion pattern, wherein the part of the pixels of the display image covered by the n+1th frame of the occlusion pattern is the part of the pixel of the display image not covered by the nth frame of the occlusion pattern , n is a positive integer from 1 to N-1.

In the embodiment of the present invention, n is the previous frame signal in the continuously received frame signal, and n+1 is the frame signal after the nth frame signal in the continuously received frame signal. The first direction is any direction preset by the terminal. After the determination module 520 determines the occlusion pattern for the display image received by the previous frame receiving module 510, the determination module 520 moves along the preset first direction according to the occlusion pattern determined in the previous frame, and takes the moved occlusion pattern as the next The occlusion pattern of the frame, the pixels of the displayed image that are not occluded by the occlusion pattern of the subsequent frame may be the pixels of the displayed image that are occluded by the occlusion pattern of the previous frame.

It should be understood that, in the embodiment of the present invention, the content of the display image blocked by the blocking pattern in the output patterns of two consecutive frames may partially overlap.

In the embodiment of the present invention, the shielding pattern is a grid pattern with a regular shape, and the grid pattern may be a pattern of other grid shapes such as horizontal grid, vertical grid, or oblique grid.

It should be noted that, in this embodiment of the present invention, the occlusion patterns in consecutive frames may move in a certain direction, and the occlusion patterns may move in any direction in a certain order, for example, at a specified speed.

It should also be understood that, in this embodiment of the present invention, when the occlusion pattern satisfies the conditions: each frame of the occlusion pattern occludes a part of the display image of the corresponding frame, and each pixel of the display image of each frame appears at least once in the output images continuously output by N frames. , in the output image of N frames continuously output, the displayed image of the unobstructed part of the occlusion pattern in each frame satisfies the principle of visual stop, and when N is the number of frames of the displayed image output per second, the occlusion pattern can also move irregularly. This is not limited in the embodiments of the invention.

Optionally, as another embodiment of the present invention, when the shielding pattern is a grid pattern, the determining module 520 is further configured to determine the width of the grid pattern and the spacing of the grid pattern.

In this embodiment of the present invention, when the blocking pattern is a grid pattern, the determining module 520 may determine the width and spacing of the grid pattern. For example, the determination module 520 determines the width and spacing of the grid pattern according to the size of the output image. In this embodiment, the blocking patterns may be patterns of equal spacing, unequal spacing, equal width and/or unequal width.

Optionally, as another embodiment of the present invention, the determining module 520 may be further configured to determine the color of the occlusion pattern in each frame.

In this embodiment of the present invention, the determination module 520 may set a color for each frame of the occlusion pattern, and the color of each frame of the occlusion pattern may be a fixed color or a different color.

In this embodiment of the present invention, the determination module 520 may also set different visual effects for each frame of the occlusion pattern. For example, the determination module 520 may set different transparency for the occlusion pattern, or the determination module 520 may set the occlusion pattern as a special effect, or for example , frosted glass effect.

Preferably, in this embodiment of the present invention, when the terminal turns on the occlusion pattern once, the determination module 520 sets the same color, the same transparency and/or the same special effect for the occlusion pattern in each frame of the output image output this time, To protect the eyes by reducing the irritation to the eyes from changes in color, transparency and/or special effects. When the terminal turns on the occlusion pattern multiple times, the determination module 520 may set the color, transparency and/or special effect of each occlusion pattern to be inconsistent, so as to be used for visual diversity during user use and to improve user experience.

In this embodiment of the present invention, the determining module 520 may also adjust the brightness of the occlusion pattern. For example, the terminal may adjust the brightness of the screen of the terminal display and the brightness of the occlusion pattern in combination, and adjust the brightness of the screen of the terminal display and the brightness of the occlusion pattern at the same time. Brightness to improve user experience.

In this embodiment of the present invention, the terminal may also adjust the brightness of the occlusion pattern. For example, the determining module 520 may adjust the brightness of the screen of the terminal display and the brightness of the occlusion pattern in combination, and adjust the brightness of the screen of the terminal display and the brightness of the occlusion pattern at the same time. Brightness to improve user experience.

FIG. 6 is a schematic structural diagram of a determination module in a terminal according to another embodiment of the present invention.

In this embodiment of the present invention, as shown in FIG. 6 , the determination module 520 may include an encryption unit 521 , a coloring unit 522 and a filtering unit 523 . The encryption unit 521 is used to set the occlusion pattern for the display image of each frame; the coloring unit 522 is used to set the color for the occlusion pattern of each frame; the filter unit 523 is used to superimpose the occlusion pattern of each frame and the display image of the corresponding frame to obtain the final output image.

It should be understood that, in this embodiment of the present invention, the determination module 520 may further set other units according to internal logic requirements, which is not limited in this embodiment of the present invention.

Optionally, as another embodiment of the present invention, the determining module 520 is further configured to set the occlusion pattern of each frame to be distributed on a part of the display image or the occlusion pattern of each frame to be distributed on the entire display image.

Specifically, the occlusion pattern of each frame may be distributed on the entire display image, or may be distributed on a part of the entire display image, that is to say, the terminal occlusion pattern may block a part of the display screen of the terminal, and may also block the terminal. the complete area of the monitor screen. As shown in Figure 4.

It should be understood that in the embodiments of the present invention, the occlusion patterns are distributed in the middle of the displayed image as an example, only to describe the technical solutions of the embodiments of the present invention in detail, but not to limit the scope of the embodiments of the present invention.

In this embodiment of the present invention, when the occlusion pattern is distributed in part of the displayed image, the occlusion pattern may also be distributed in the top position, bottom position, left position, right position of the displayed image, or any possible position of the displayed image. This is not limited in the embodiments of the present invention.

It should also be understood that the occlusion pattern can be any shape of a regularly shaped pattern or a random shaped pattern.

Optionally, as another embodiment of the present invention, the receiving module 510 is further configured to receive an operation instruction input by the user, where the operation instruction is used to instruct to open the shielding pattern.

Specifically, in this embodiment of the present invention, the receiving module 510 receives an instruction to open the occlusion pattern input by the user, so as to set the occlusion pattern for each frame of the received display image according to the instruction.

In this embodiment of the present invention, the operation instruction may be triggered by the user through a key on the terminal, or may be triggered through a gesture on the terminal. For example, if the terminal is a mobile phone, the mobile phone can trigger the mobile phone to open the blocking pattern according to the user through the power button and the volume up button; or the mobile phone can trigger the mobile phone to open the blocking pattern according to the user turning the mobile phone.

It should be understood that, in this embodiment of the present invention, the terminal may also close the shielding pattern according to an operation instruction input by the user.

It should also be understood that, in this embodiment of the present invention, in addition to being triggered by a key on the terminal, the operation instruction may also be triggered by a software switch or a specific program, which is not limited in this embodiment of the present invention.

Therefore, by using the terminal provided by the embodiment of the present invention, the terminal can prevent the displayed image from being secretly photographed under the condition that the user's needs are met, by setting a blocking pattern for the displayed image of each frame, according to the frequency of the output signal of the terminal, and in combination with the visual stop principle. , in order to ensure the security of users using the terminal.

It should be noted that, in this embodiment of the present invention, the above-mentioned and other operations and/or functions of each module in the terminal 500 according to the embodiment of the present invention are respectively in order to realize the corresponding process of each method in FIG. 1 . For brevity, in This will not be repeated here.

FIG. 7 is a schematic structural diagram of a terminal according to another embodiment of the present invention. The terminal 600 shown in FIG. 7 includes a content cache module 710, a display output module 720, a processing module 730, a parallel display interface 740, a digital-to-analog conversion module 750, and a display module 760.

When the terminal receives the operation instruction of opening the occlusion pattern input by the user, the specific process of the terminal outputting the image is as follows:

The display output module 720 obtains the display image from the content cache module 710, and sends the display image frame by frame to the processing module 730. The processing module 730 determines an occlusion pattern for each frame of the display image according to the display image received frame by frame, and compares the occlusion pattern with the display image. Display the image overlay to get the output image. The processing module 730 sends the output image to the digital-to-analog conversion module 750 through the parallel display interface (English: Display Serial Interface, "DSI" for short) 740, and the digital-to-analog conversion module 750 converts the digital signal of the output image into an analog signal, and outputs the output image. The image display is output to the display module 760 .

It should be noted that, in this embodiment of the present invention, the terminal 600 according to the embodiment of the present invention may correspond to the execution body of the method 100 according to the embodiment of the present invention, and the above and other operations and/or The functions are respectively in order to realize the corresponding processes of the various methods in FIG. 1, and are not repeated here for the sake of brevity.

Wherein, in this embodiment of the present invention, the processing module 730 includes the receiving module 510 and the determining module 520 in the terminal 500, and the processing module 730 may also implement the operations and/or functions of the receiving module 510 and the determining module 520 in the terminal 500, in order to The corresponding process for implementing the method 100 in FIG. 1 is not repeated here for brevity. The processing module 730 further includes a sending module for sending the obtained output image to the digital-to-analog conversion module 750 through the parallel display interface 740 .

Therefore, by using the terminal provided by the embodiment of the present invention, the terminal can prevent the displayed image from being secretly photographed under the condition that the user's needs are met, by setting a blocking pattern for the displayed image of each frame, according to the frequency of the output signal of the terminal, and in combination with the principle of visual stop. In order to ensure the security of users using the terminal.

It should also be noted that, in the embodiment of the present invention, the processing module 730 is arranged between the display output module 720 and the parallel display interface 740, just to describe the technical solution of the embodiment of the present invention, and the technical solution of the present invention is not affected by the limited to this.

In this embodiment of the present invention, the processing module 730 may also process each frame of displayed image through a software algorithm to obtain an output image. For example, before the parallel display interface 740 packages the display image, the operation of the processing module 730 is performed, or before the display image enters the content cache module 710, the operation of the processing module 730 is performed, so as to complete the encryption of the display image and realize the encryption of the display image. Anti-candid photography, to ensure the safety of users.

FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 8 , the terminal 800 includes: a processor 810 , a display 820 , a memory 830 and a communication bus system 840 . Among them, the processor 810, the display 820 and the memory 830 are connected through the communication bus system 840. in,

a memory 830 for storing instructions;

The processor 810 is configured to invoke the instructions stored in the memory 830 to perform the following steps;

Receive the display image frame by frame; determine the occlusion pattern of each frame of the display image, and the occlusion pattern covers a part of the display image; output the image frame by frame, and the output image is the superposition of the display image and the occlusion pattern corresponding to the display image;

The display 820 is configured to display an output image, where the output image is a superposition of the display image and the occlusion pattern corresponding to the display image.

Among them, each pixel of each frame of the displayed image is not blocked by the occlusion pattern at least once in the output image outputted by the N frames of continuous output, and in the output image of the continuous output of N frames, the displayed image of the unobstructed part of the occlusion pattern of each frame satisfies the visual stop principle , and N is a positive integer. The principle of visual staying is that when a user looks at an image for a long time and removes the image within a certain period of time, the user will keep the image in sight.

Specifically, in this embodiment of the present invention, the terminal outputs a display image according to a preset frame rate. The frame rate used by each terminal satisfies the visual stop principle. The processor 810 processes each frame of the received display image, superimposes an occlusion pattern on the display image of each frame, and synthesizes the final output image. The occlusion pattern of each frame only occludes part of the pixels of the displayed image for that frame. For a complete display image, since some pixels are blocked by the occlusion pattern, each frame of the output image is the superposition of the display image and the occlusion pattern. A certain frame of output image cannot present the complete display image, but combined with the visual stop principle, the user can see Complete output image. Wherein, the occlusion patterns in the consecutive output frames can be changed in a certain order.

In this embodiment of the present invention, the display image may be a display image that needs to be output by the terminal. The processor 810 receives the display images to be output frame by frame. The processor 810 displays an image for each frame and determines an occlusion pattern. The occlusion pattern can be used to occlude part of the information of the displayed image.

The occlusion pattern of each frame occludes part of the pixels of the display image of the corresponding frame, and the occlusion patterns of consecutive frames can be changed in a certain order. According to the number of frames of the image output by the terminal in one second, it is determined that each pixel of the displayed image is not blocked by the blocking pattern at least once in the specified continuous frame output image. The displayed image satisfies the visual stop principle, so that the user can see the complete displayed image.

Wherein, in the embodiment of the present invention, N is the number of frames of displayed images output by the terminal per second.

The terminal superimposes the display image of each frame and the occlusion pattern corresponding to the display image to form the final output image.

Therefore, the technical solution of the embodiment of the present invention discloses that a blocking pattern is set for the display image of each frame, and the shooting device that does not match the output frame rate of the terminal cannot obtain the display content of the terminal by shooting, and the technical solution of the embodiment of the present invention can protect the individual Privacy can prevent images displayed by the terminal from being secretly photographed, and can ensure the security of users using the terminal.

In the embodiment of the present invention, the shielding pattern includes a regular-shaped pattern or an irregular-shaped pattern.

It should be understood that, in this embodiment of the present invention, the processor 810 may be a central processing unit (Central Processing Unit, CPU), and the processor 810 may also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits ( ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In addition to the data bus, the bus system 840 may also include a power bus, a control bus, a status signal bus, and the like. However, for clarity of illustration, the various buses are labeled as bus system 840 in the figure.

In the implementation process, each step of the above-mentioned method can be completed by an integrated logic circuit of hardware in the processor 810 or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 830, and the processor 810 reads the information in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, detailed description is omitted here.

Optionally, as another embodiment of the present invention, each pixel of the display image is not occluded by the occlusion pattern at least once in the output images continuously output by N frames.

Optionally, in this embodiment of the present invention, the processor 810 is specifically configured to:

Move the nth frame of the occlusion pattern along the first direction to obtain the n+1th frame of the occlusion pattern, wherein part of the pixels of the display image blocked by the n+1th frame of the occlusion pattern may be the unobstructed display image of the nth frame of the occlusion pattern. Part of the pixel, n is a positive integer from 1 to N-1.

In the embodiment of the present invention, n is the previous frame signal in the continuously received frame signal, and n+1 is the frame signal after the nth frame signal in the continuously received frame signal. The first direction is any direction preset by the terminal. After the terminal determines the occlusion pattern for the nth frame of display image, the terminal moves the occlusion pattern of the nth frame of display image along the preset first direction, and uses the moved occlusion pattern as the occlusion pattern of the n+1th frame of display image, The pixels of the display image not blocked by the n+1th frame of the blocking pattern may be all or part of the pixels of the display image blocked by the nth frame of the blocking pattern.

In the embodiment of the present invention, the shielding pattern is a grid pattern with a regular shape, and the grid pattern may be a pattern of other grid shapes such as a horizontal grid pattern, a vertical grid pattern, or an oblique grid pattern.

It should be noted that, in this embodiment of the present invention, the occlusion patterns in consecutive frames move in a certain direction, and the occlusion patterns may move in a certain order, for example, at a certain speed.

It should also be understood that, in this embodiment of the present invention, when the occlusion pattern satisfies the conditions: each frame of the occlusion pattern occludes a part of the display image of the corresponding frame, and each pixel of the display image of each frame is not displayed at least once in the output images continuously output by N frames. Occluded by the occlusion pattern, in the output image of N frames continuously output, the displayed image that is not occluded by the occlusion pattern of each frame satisfies the principle of visual stop, N is the number of frames of the output display image per second, and the occlusion pattern can also move irregularly. This is not limited in this embodiment of the present invention.

Optionally, as another embodiment of the present invention, when the shielding pattern is a grid pattern with a regular shape, the processor 810 is further configured to determine the width of the grid pattern and the spacing of the grid pattern.

In this embodiment of the present invention, when the blocking pattern is a grid pattern, the processor 810 may determine the width and spacing of the grid pattern. For example, the processor 810 determines the width and spacing of the grid pattern according to the size of the output display image. In this embodiment, the blocking patterns may be patterns of equal spacing, unequal spacing, equal width and/or unequal width.

Optionally, as another embodiment of the present invention, the processor 810 may be further configured to determine the color of the occlusion pattern in each frame.

In this embodiment of the present invention, the processor 810 may set a color for each frame of the occlusion pattern, and the color of each frame of the occlusion pattern may be a fixed color or a different color.

In this embodiment of the present invention, the processor 810 may also set different visual effects for each frame of the occlusion pattern. For example, the processor 810 may set different transparency for the occlusion pattern, or the processor 810 may set the occlusion pattern as a special effect, or for example , frosted glass effect.

Preferably, in this embodiment of the present invention, when the terminal turns on the occlusion pattern once, the processor 810 sets the same color, the same transparency and/or the same special effect for the occlusion pattern in each frame of the output image output this time, To protect the eyes by reducing the irritation to the eyes from changes in color, transparency and/or special effects. When the terminal turns on the occlusion pattern multiple times, the processor 810 may set the color, transparency and/or special effect of each occlusion pattern to be inconsistent, so as to be used for visual diversity during user use and to improve user experience.

In this embodiment of the present invention, the processor 810 may also adjust the brightness of the occlusion pattern. For example, the terminal may adjust the brightness of the screen of the terminal display and the brightness of the occlusion pattern in combination, and adjust the brightness of the screen of the terminal display and the brightness of the occlusion pattern at the same time. Brightness to improve user experience.

In this embodiment of the present invention, the terminal may also adjust the brightness of the occlusion pattern. For example, the processor 810 may combine the adjustment of the brightness of the screen of the terminal display with the adjustment of the brightness of the occlusion pattern, and adjust the brightness of the screen of the terminal display and the brightness of the occlusion pattern at the same time. Brightness to improve user experience.

Optionally, as another embodiment of the present invention, the processor 810 is further configured to set the occlusion pattern of each frame to be distributed on a part of the display image or the occlusion pattern of each frame to be distributed on the entire display image.

Specifically, the occlusion pattern of each frame may be distributed on the entire display image, or may be distributed on part of the display image of the entire display image, that is, the terminal occlusion pattern may cover part of the display screen of the terminal, or may cover the entire terminal's display screen. monitor screen. As shown in Figure 4.

It should be understood that in the embodiments of the present invention, the occlusion patterns are distributed in the middle of the displayed image as an example, only to describe the technical solutions of the embodiments of the present invention in detail, but not to limit the scope of the embodiments of the present invention.

In this embodiment of the present invention, when the occlusion pattern is distributed in part of the displayed image, the occlusion pattern may also be distributed in the top position, bottom position, left position, right position of the displayed image, or any possible position of the displayed image. This is not limited in the embodiments of the present invention.

It should also be understood that the occlusion pattern can be any shape of a regularly shaped pattern or a random shaped pattern.

Optionally, as another embodiment of the present invention, the processor 810 is further configured to receive an operation instruction input by the user, where the operation instruction is used to instruct to open the shielding pattern.

Specifically, in this embodiment of the present invention, the processor 810 receives an instruction to open the occlusion pattern input by the user, so as to set the occlusion pattern for each frame of the received display image according to the instruction.

In this embodiment of the present invention, the operation instruction may be triggered by the user through a key on the terminal, or may be triggered through a gesture on the terminal. For example, if the terminal is a mobile phone, the mobile phone can trigger the mobile phone to open the blocking pattern according to the user through the power button and the volume up button; or the mobile phone can trigger the mobile phone to open the blocking pattern according to the user turning the mobile phone.

It should be understood that, in this embodiment of the present invention, the terminal may also close the shielding pattern according to an operation instruction input by the user.

It should also be understood that, in this embodiment of the present invention, in addition to being triggered by a key on the terminal, the operation instruction may also be triggered by a software switch or a specific program, which is not limited in this embodiment of the present invention.

Therefore, the technical solution of the embodiment of the present invention discloses that a blocking pattern is set for the display image of each frame, and the shooting device that does not match the output frame rate of the terminal cannot obtain the display content of the terminal by shooting, and the technical solution of the embodiment of the present invention can protect the individual Privacy can prevent images displayed by the terminal from being secretly photographed, and can ensure the security of users using the terminal.

It should be noted that, in the embodiment of the present invention, the terminal 800 in the embodiment of the present invention may correspond to the terminal 500 in FIG. 5 , and the foregoing and other operations and/or functions of each module in the terminal 800 according to the embodiment of the present invention are respectively In order to realize the corresponding flow of each method in FIG. 1 , for the sake of brevity, details are not repeated here.

Another embodiment of the present invention is a non-transitory computer-readable storage medium storing one or more programs including instructions that, when executed by a portable electronic device including a display, cause the portable electronic device Execute the following events:

Receive display images frame by frame;

determining an occlusion pattern of each frame of the display image, the occlusion pattern occludes part of the pixels of the display image;

An image is output frame by frame, where the output image is a superposition of the display image and an occlusion pattern corresponding to the display image.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined or Integration into another system, or some features can be ignored, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection. The unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solutions in the embodiments of the present invention. In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a non-transitory computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or a part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can think of various equivalent modifications within the technical scope disclosed by the present invention. or replacement, these modifications or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. An image processing method applied to a portable electronic device having a display, the method comprising:

receiving display images frame by frame;

when the display image comprises the privacy information of the user, receiving a first input initiated by the user, and starting to set a shielding pattern for the display image according to the first input;

determining the shielding pattern of each frame of display image, wherein the shielding pattern shields partial pixels of the display image;

outputting images frame by frame, wherein the output images are the superposition of the display images and the shielding patterns corresponding to the display images, each pixel of each frame of display images is not shielded by the shielding patterns at least once in the output images continuously output by N frames, and the shielding patterns of the continuous frames are different;

when the electronic equipment opens the shielding pattern for multiple times, the color and the transparency of the shielding pattern are inconsistent every time; the shielding pattern comprises a plurality of opaque areas and a plurality of transparent areas, and the opaque areas and the transparent areas are alternately arranged; and receiving a second input initiated by a user, and closing the setting of the shielding pattern for the display image according to the second input.

2. The method according to claim 1, wherein each pixel of the display image appears unobstructed by an obstruction pattern at least once in the output images output in N frames in succession.

3. The method of claim 2, wherein the determining the occlusion pattern of the display image comprises:

and moving the N frame of shielding pattern along the first direction to obtain an N +1 frame of shielding pattern, wherein the partial pixels of the display image shielded by the N +1 frame of shielding pattern are the partial pixels of the display image not shielded by the N frame of shielding pattern, and N is a positive integer from 1 to N-1.

4. The image processing method according to any one of claims 1 to 3, wherein when the shielding pattern is a bar-type pattern, the method further comprises:

and determining the width of the bar-type pattern and the interval of the bar-type pattern.

5. An image processing apparatus, characterized in that the apparatus comprises:

a receiving module for receiving the display image frame by frame;

the receiving module is further used for receiving a first input initiated by a user when the display image comprises the privacy information of the user, and starting setting a shielding pattern for the display image according to the first input;

a determining module, configured to determine the occlusion pattern of each frame of the display image, where the occlusion pattern occludes a part of pixels of the display image;

the output module is used for outputting images frame by frame, the output images are the superposition of the display images and the shielding patterns corresponding to the display images, each pixel of each frame of display images is not shielded by the shielding patterns at least once in the output images continuously output by N frames, and the shielding patterns of the continuous frames are different;

when the electronic equipment opens the shielding pattern for multiple times, the color and the transparency of the shielding pattern are inconsistent every time; the shielding pattern comprises a plurality of opaque areas and a plurality of transparent areas, and the opaque areas and the transparent areas are alternately arranged;

and receiving a second input initiated by a user, and closing the setting of the shielding pattern for the display image according to the second input.

6. The apparatus of claim 5, wherein each pixel of the display image appears unobstructed by an unobstructed pattern at least once in N frames of the successively output images.

7. The apparatus of claim 6, wherein the means for determining is specifically configured to,

and moving the N frame of shielding pattern along the first direction to obtain an N +1 frame of shielding pattern, wherein the partial pixels of the display image shielded by the N +1 frame of shielding pattern are the partial pixels of the display image not shielded by the N frame of shielding pattern, and N is a positive integer from 1 to N-1.

8. The apparatus according to any one of claims 5 to 7, wherein when the shielding pattern is a grid-type pattern, the determining module is further configured to determine a width of the grid-type pattern and a pitch of the grid-type pattern.

9. A portable electronic device, characterized in that the portable electronic device comprises:

a display for displaying an image;

a memory to store instructions;

a processor to invoke instructions stored in the memory to implement:

receiving display images frame by frame;

when the display image comprises the privacy information of the user, receiving a first input initiated by the user, and starting to set a shielding pattern for the display image according to the first input;

determining the shielding pattern of each frame of display image, wherein the shielding pattern shields partial pixels of the display image;

outputting images frame by frame, wherein the output images are the superposition of the display images and the shielding patterns corresponding to the display images, each pixel of each frame of display images is not shielded by the shielding patterns at least once in the output images continuously output by N frames, and the shielding patterns of the continuous frames are different;

when the electronic equipment opens the shielding pattern for multiple times, the color and the transparency of the shielding pattern are inconsistent every time; the shielding pattern comprises a plurality of opaque areas and a plurality of transparent areas, and the opaque areas and the transparent areas are alternately arranged;

and receiving a second input initiated by a user, and closing the setting of the shielding pattern for the display image according to the second input.

10. A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a display, cause the portable electronic device to perform the following:

receiving display images frame by frame;

when the display image comprises the privacy information of the user, receiving a first input initiated by the user, and starting to set a shielding pattern for the display image according to the first input;

determining the shielding pattern of each frame of display image, wherein the shielding pattern shields partial pixels of the display image;

outputting images frame by frame, wherein the output images are the superposition of the display images and the shielding patterns corresponding to the display images, each pixel of each frame of display images is not shielded by the shielding patterns at least once in the output images continuously output by N frames, and the shielding patterns of the continuous frames are different;

when the electronic equipment opens the shielding pattern for multiple times, the color and the transparency of the shielding pattern are inconsistent every time; each frame of the shielding pattern comprises a plurality of opaque areas and a plurality of transparent areas, wherein the opaque areas and the transparent areas are alternately arranged;

and receiving a second input initiated by a user, and closing the setting of the shielding pattern for the display image according to the second input.

Images