TW201501532A - Photo shooting method and apparatus thereof - Google Patents

Abstract

A photo shooting method and apparatus thereof is disclosed in the present invention and is related to a field of electronic device application to solve the problem that the operation procedure for encrypting the pictures is too complicated. The method in the present invention comprises: receiving an encrypted shooting command triggered by a user after activating a photo shooting application program; switching a normal photo shooting mode to an encrypted shooting mode according to the encrypted shooting command; acquiring photo data shot by a camera lens in the encrypted shooting mode; encrypting the photo data and saving the encrypted photo data. The present invention is to encrypt and save the photo or video shot by the camera lens.

Description

Photographing method and device

The invention relates to the field of electronic device application, and in particular to a photographing method and device.

At present, electronic devices such as mobile phones and tablet computers are widely equipped with photographing lenses for taking photos or videos. The user can record the moments in the life through the photographic lens and store them in the electronic device for later viewing. In some cases, the photos or videos (hereinafter collectively referred to as images) taken by the user have a higher level of privacy, and the user needs to encrypt and save the images to prevent others from stealing their own electronic devices to view the privacy images.

The existing image encryption process is usually: the user exits the shooting application after entering the shooting and enters the encryption protection application, and the image is encrypted and saved in the encryption protection application.

In the above process of image encryption and storage, the inventors have found that at least the following problems exist in the prior art: the user needs to manually switch between the shooting application and the encryption protection application, and needs to input encryption when entering the encryption protection application. Password, user operation is too complicated. Especially when encrypting multiple images, the user needs to repeatedly perform the same The operation steps are quite cumbersome to use.

The embodiment of the invention provides a photographing method and device, which can solve the problem that the image encryption and storage process is too cumbersome.

In one aspect, the embodiment of the present invention provides a photographing method, comprising: receiving an encrypted photographing instruction triggered by a user after starting the photographing application; switching the normal photographing mode to the encrypted photographing mode according to the encrypted photographing instruction; In the mode, the image data captured by the photographic lens is acquired, and the image data is stored in the system file folder; the image data is encrypted; and the encrypted image data is saved.

In another aspect, the embodiment of the present invention further provides a photographing apparatus, comprising: a receiving unit, configured to receive an encrypted photographing instruction triggered by a user after starting the photographing application; and a switching unit, configured to receive according to the receiving unit The encrypted shooting instruction switches the normal shooting mode to the encrypted shooting mode; the acquiring unit is configured to acquire the image data captured by the shooting lens in the encrypted shooting mode, and store the image data in the system file folder; the encryption and decryption unit And performing encryption processing on the image data acquired by the acquiring unit; And a storage unit, configured to save the image data after the encryption and decryption unit is encrypted.

The photographing method and device provided by the embodiment of the invention can switch the normal shooting mode to the encrypted shooting mode according to the received encrypted shooting instruction during the shooting process, acquire the image data captured by the shooting lens in the encrypted shooting mode, and then acquire the image data captured by the shooting lens. The image data is encrypted, and finally the encrypted image data is saved, so that subsequent users can view according to the user password. Compared with the prior art, when the user needs to exit the shooting application to encrypt the image data, the encrypted shooting mode can be provided in the shooting application, and the image captured by the shooting lens can be automatically saved in the encrypted shooting mode, which can save Simplify the operation of the image encryption process by repeatedly switching between the application and the encryption protection application.

101~105‧‧‧Steps

201~206‧‧‧Steps

71‧‧‧ device

711‧‧‧ receiving unit

712‧‧‧Switch unit

713‧‧‧Acquisition unit

714‧‧‧Addition and decryption unit

715‧‧‧ storage unit

716‧‧‧Display unit

717‧‧‧Monitoring unit

811‧‧‧Monitoring subunit

812‧‧‧Extract subunit

911‧‧‧First encryption and decryption subunit

912‧‧‧Second encryption and decryption subunit

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only Some embodiments of the invention may also be used to obtain other figures from these figures without departing from the art.

1 is a flowchart of a photographing method in an embodiment of the present invention; FIG. 2 is a flowchart of another photographing method in an embodiment of the present invention; FIG. 3 is a schematic diagram of a photographing interface in an embodiment of the present invention; A schematic diagram of a system file folder in the embodiment of the present invention; 5 is a schematic diagram of another photographing interface in the embodiment of the present invention; FIG. 6 is a schematic diagram of another photographing interface in the embodiment of the present invention; FIG. 7 is a schematic structural diagram of a photographing apparatus according to an embodiment of the present invention; FIG. 9 is a schematic structural diagram of another camera device according to an embodiment of the present invention; and FIG. 9 is a schematic structural diagram of another camera device according to an embodiment of the present invention.

The technical solutions in the present embodiment will be clearly and completely described in the following with reference to the drawings in the embodiments. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In order to simplify the operation steps of the encrypted photographing, the embodiment provides a photographing method, which can be applied to an electronic device equipped with a photographic lens such as a mobile phone or a tablet computer. As shown in Figure 1, the method includes:

101. After starting the shooting application, the electronic device receives an encrypted shooting instruction triggered by the user.

After the user launches the shooting application, the electronic device receives an encrypted shooting instruction for indicating switching to the encrypted photographing mode.

102. The electronic device switches the normal shooting mode to the encrypted shooting mode according to the encrypted shooting instruction.

After receiving the encrypted shooting instruction, the electronic device will use the current normal shooting mode. Switch to the encrypted shooting mode. In the decryption shooting mode, the electronic device can automatically encrypt and save the image taken by the photographic lens.

103. The electronic device acquires image data captured by the photographic lens in the encrypted shooting mode.

The image data described in this embodiment may be a still image data such as a photo, or may be a moving image data such as a video.

When the user triggers the shooting function button, the photographic lens captures the subject. Usually, the photos taken by the photographic lens are saved in the system file folder, and the system file folder saves the photos taken by the photographic lens in the order in which they were taken. After the photographic lens captures the photographic subject, the electronic device extracts the photo taken by the photographic lens from the system archive folder.

104. The electronic device encrypts the image data.

The electronic device encrypts the photo extracted from the system file folder. In this embodiment, the electronic device may encrypt the photo content itself, and may also encrypt the attribute information of the photo to implement encryption of the photo content. There is no limit to this.

105. The electronic device saves the encrypted image data.

The electronic device saves the encrypted photo from the system file folder in the encrypted file folder, so that the subsequent user can view the user password according to the user password, and when the user needs to view the saved encrypted photo, the encryption protection application is turned on. And enter the user password, you can view the encrypted photo. In the encrypted file folder, the electronic device can save the photos according to the time sequence of the shooting, or can save the photos according to the attribute information of the photos. In this embodiment, the electronic device can copy the file of the existing encryption protection application. The file folder is used as an encrypted file folder, and a sub-area can be independently opened in the storage area for storing the encrypted file folder. This embodiment does not limit this.

In the prior art, photos taken by a user through a photographic lens are saved in a system file folder, such as a preset album folder. When encrypting a photo, the user needs to exit the capture application, then open the encryption protection application and enter the user password, and migrate the image to be encrypted from the system archive folder to the encrypted file folder in the encryption protection application. Switching between the capture application and the encryption-protected application increases the user's operational steps while consuming the processing resources of the system. In particular, when encrypting and storing multiple photos, the user needs to perform the same operation steps repeatedly, which is quite cumbersome to use. In addition, since it is necessary to switch between different applications, the process of photo shooting and photo encryption is separated in time series, so the user can easily forget to encrypt the captured picture, which is a risk of leakage. For example, after exiting the shooting application, the user does not enter the encryption protection application to encrypt the image in time, and forgets the photo encryption after a period of time. If someone else steals the user's electronic device, the system file folder can be directly opened. User's privacy photo.

At present, there is also a vendor encryption protection application in the prior art, which is capable of driving the photographic lens of the electronic device, allowing the user to start the photographic lens in the supplier application for shooting, and the captured photos are directly saved in the Encrypted file folder. Although the image encryption method can avoid the operation steps of switching the application and inputting the user password in the above encryption method, the shooting function is different from the shooting interface and the system shooting application, and the user uses Habits cannot be guaranteed.

The photographing method provided in this embodiment can switch the normal shooting mode to the encrypted shooting mode according to the received encrypted shooting instruction during the shooting process, and obtain the encrypted shooting mode in the encrypted shooting mode. The image data taken by the photographic lens is taken, and then the acquired image data is encrypted, and finally the encrypted image data is saved, so that subsequent users can view according to the user password. Compared with the prior art, when the user needs to exit the shooting application to encrypt the image data, the encrypted shooting mode can be provided in the shooting application, and the image captured by the shooting lens is automatically encrypted in the encrypted shooting mode. It saves the operation steps of repeatedly switching between the shooting application and the encryption protection application, thereby simplifying the user operation during the image encryption and saving process. At the same time, since the electronic device can automatically encrypt the image after the image is taken by the photographic lens, the user does not need to pay attention to the encryption process, so that the problem of encryption omission caused by the user forgetting can be avoided. Finally, the photographing method provided by the embodiment is based on the improvement of the system shooting application most commonly used by the user, and the image can be completed under the familiar shooting interface and shooting function of the user application. Automatic encryption, more in line with the user's usage habits.

As a detailed description and further extension of the method shown in FIG. 1, the embodiment further provides a photographing method. As shown in FIG. 2, the method includes:

201. The electronic device monitors the mode switching function key.

After the shooting application is started, the electronic device can display the mode switching function key as shown in FIG. 3 in a suspended form in the shooting interface, and monitor the mode switching function key. The mode switching function key is used to switch between the normal shooting mode and the encrypted shooting mode, wherein ON means that the encrypted shooting mode is turned on, and OFF means that the encrypted shooting mode is turned off, that is, the normal shooting mode is turned on. The electronic device receives a trigger command of the user to switch the mode switch function key. When the user switches the function key to the normal shooting mode, the electronic device performs step 202, and when the user switches the function key to the encrypted shooting mode, the electronic device Go to step 203.

Usually, when the user starts the shooting application, multiple photos will be taken continuously, some of which need to be saved in encrypted form, and some photos can be saved in the normal way. The display mode switching function key allows the user to conveniently and quickly select a file folder to be saved in the photo during the shooting process. In addition, the floating mode display mode switching function key can reduce the function table depth of the function key, save the operation and time of the user switching mode, and is more suitable for shooting scenes such as snap shots.

Further, when the user switches the shooting mode, the electronic device may also prompt the user to select the currently selected shooting mode through the dialog box. For example, in FIG. 3, when the user switches to the encrypted shooting mode, the electronic device displays the dialog box. The photos and videos taken will be stored in a privacy space."

Preferably, in order to prevent the user from forgetting to switch the encrypted shooting mode, the electronic device can preset the current mode to the encrypted shooting mode when the shooting application is started, and the mode switching function key when the application is started is the third. Shown in the figure. If you want to switch to the normal shooting mode, the user can manually trigger the mode switching function button.

202. The electronic device saves the image data captured by the photographic lens according to the normal photographing mode.

After the photographic lens takes a photo, the electronic device saves the photo in the system file folder as shown in FIG. 4, wherein the left side of the system file folder is the photo data content, and the right side of the system file folder is the storage number of the photo, according to 伫The "first in, first out" rule, the most recently taken photo is stored in the first entry in the system archive folder, that is, the entry in the fourth figure where the serial number N is located.

203. The electronic device monitors the system file folder.

In the Encrypted Shooting mode, photos taken with the photographic lens are still saved in the system file folder. The electronic device instantly monitors the system file folder and monitors whether new photos are added to the system file folder.

204. The electronic device extracts new photos from the system file folder.

When a new photo is added to the system profile folder, the electronic device extracts the photo from the system file folder. Since the photos saved in the system file folder are directly viewable photos, the electronic device needs to extract the photos that need to be encrypted from the system file folder, and the photo file folder does not exist in the system file folder after the photo is extracted.

Optionally, in step 201, the electronic device may further monitor the database archive folder in the provider photo application software, and when the user shoots through the vendor photo application software, the electronic device reads from the database archive folder. Extracting the newly added photos, and then performing step 205; or the electronic device can also monitor the local system media database archive folder, for example, monitoring the local album, and when monitoring the newly added image, for example, the user downloads A wallpaper, the electronic device extracts the newly added wallpaper from the system media database archive folder, and then performs step 205.

205. The electronic device performs encryption processing on the extracted image data.

Before the photo extracted from the system file folder is saved in the encrypted file folder, the electronic device encrypts the photo. There are many data encryption methods that can be used in this embodiment. Only two encryption methods are described here. :

1) Replace the photo header

Usually, the photos acquired by the electronic device carry a file header containing photo attribute information, and the file header contains at least one bit of attribute information. The electronic device extracts the file from the photo, The specific location and a specific number of bits in the header are replaced with a user password, which is a password preset by the user, that is, a user password input when the user logs in to the encryption protection application.

Taking the user password 123456 as an example, the electronic device extracts a 100-bit header from the photo, and then replaces the first 20 bits in the header with the user password, and replaces the first 20 password bits. The yuan is: 12345612345612345612.

2) Rearrange photo data

Usually any type of material can be converted into a binary data storage sequence containing at least 1 bit. The electronic device extracts the binary data storage sequence of the photo, and then determines the ordering rule of the bit in the binary data storage sequence according to the user password, and finally rearranges all the bits in the binary data storage sequence according to the sorting rule.

Taking the user password 54321 as an example, in the binary data storage sequence extracted by the electronic device, the first bit to the fifth bit are sequentially a, b, c, d, and e. The electronic device adjusts the positions of the five bit data to e, d, c, b, and a according to the user password 54321, that is, the adjusted position of the first bit is the first bit "5" of the user password, The second bit adjusted position is the second bit "4" of the user password, and so on.

The number of bits in this embodiment is merely an example and is not intended to limit the actual application. In practical applications, the number of bits in the binary data storage sequence of a photo is usually in the order of one million. In addition, the bit data a, b, c, d, and e are only used to facilitate the description of the encryption mode. In practical applications, the bit data is a binary digital word of 0 or 1.

Usually the encryption method 1) there is a risk of small chance to crack, and the criminals can read the data content by forcibly cracking the file header. And the encryption method 2) is to the data content itself The rows are rearranged, and the criminals cannot read the data content even if they crack the header without knowing the user password (ie, the sorting rule). Therefore, as a preferred embodiment of the embodiment, the electronic device encrypts the photo by using the encryption method 2).

206. The electronic device saves the encrypted image data into an encrypted file folder.

Similar to the system file folder, the encrypted file folder is also used to save the photo according to the time sequence of shooting or other attribute information, but unlike the system file folder, the encrypted file folder is used to save the encrypted photo. Users can view the photos in the encrypted file folder only after logging in to the encryption protection application with the user password.

In this embodiment, the electronic device encrypts the photos extracted from the system file folder, the database file folder in the supplier photo application software, or the system media database file folder, and then saves the encrypted photo in the encrypted file. In the folder.

As a further extension of the method shown in FIG. 2, the electronic device can also obtain an overview of the photo from the storage format of the photo, and then display the schematic image of the photo and the serial number of the photo in the encrypted file folder in the shooting interface. For example, in FIG. 5, the electronic device displays a current image of the currently encrypted photo on the right side of the mode switching function key, and displays the serial number 3 in the lower right corner of the schematic image, the serial number indicating that the current photo is the third saved in the encrypted file folder. a photograph.

Further, the electronic device can also display a shortcut key of the encryption protection application in the shooting interface, for example, the “privacy space” shortcut button in the upper right corner of the shooting interface in FIG. 6 , after the user triggers the quick key, the electronic device switches the current interface. Go to the user login interface and display the encrypted album in the privacy space after the user enters the user password.

Further, in order to facilitate the user to take photos taken in the encrypted shooting mode The line is normally saved, and the electronic device can also receive a decryption instruction triggered by the user, and the decryption instruction is used to instruct to decrypt the photo corresponding to the currently displayed overview image. After receiving the decryption instruction, the electronic device extracts the photo corresponding to the overview image from the encrypted file folder, decrypts the photo, and saves the decrypted photo to the system file folder. After the photo is saved, the file is encrypted. The photo is no longer saved in the folder.

When the electronic device displays the outline image of the current photo, the photo has been saved in the encrypted file folder, when the user regrets to encrypt the current photo, or wants to save the current photo normally without switching the shooting mode. , can trigger the decryption instruction. The electronic device restores the encrypted saved photo to a normal save according to the decryption instruction. The decryption command may be a long press command or a double press command. When the user long presses a threshold value longer than a preset time or performs a double press operation on the schematic image, the electronic device extracts the encrypted file folder from the encrypted file folder. The photo corresponding to the overview image is then decrypted in the opposite manner to step 204, and finally the decrypted photo is saved to the system archive folder.

Similarly, in the normal shooting mode, the electronic device can also display a schematic image of the current photo in the shooting interface, and when the user wants to save the photo saved in the system file folder, the encryption command is triggered. The electronic device sequentially performs steps 204 to 206 to extract the current photo that has been saved in the system file folder for encryption, and then save the encrypted file folder.

The photographing method provided in the embodiment can enable the user to easily select a shooting mode through a mode switching function key in the shooting interface, and in the encrypted shooting mode, the image captured by the photographing lens can be automatically encrypted without the user's manual operation. save. In addition, the method can also display a schematic image of the current image, so that the user does not switch the shooting mode, The stored and saved (or normal saved) photo secondary selection save mode further simplifies user operations.

In an application scenario of the embodiment, the user starts the shooting application to take a photo, and the preset shooting mode of the electronic device is the encrypted shooting mode. The user has taken two encrypted photos and then switched to the normal shooting mode with one button to continue shooting.

In another application scenario of this embodiment, the user takes a photo in the encrypted shooting mode, and then views an overview of the photo, and finds that the photo is not stored encrypted. The user double-clicks on the overview to migrate the photo from the encrypted saved album to the normally saved album.

In still another application scenario of the embodiment, the user takes a photo in the normal shooting mode, and then views an overview of the photo, and finds that the photo needs to be stored in an encrypted manner. The user double-clicks on the overview to migrate the photo from the normally saved album to the encrypted saved album.

In this embodiment, the image captured by the photographic lens is described as an encrypted storage object, and the object to be encrypted and saved by the actual application may be, but is not limited to, a short message, a chat record, and a video call record. Taking the chat record as an example, in the "private chat" mode, the electronic device packs the generated chat record into a folder, encrypts it, and finally saves it in the encrypted file folder.

Referring to the method shown in FIG. 1 or FIG. 2, the embodiment further provides a photographing apparatus for implementing the method shown in FIG. 1 or FIG. The device may be located in an electronic device such as a mobile phone or a tablet computer. As shown in FIG. 7, the device 71 includes: a receiving unit 711, a switching unit 712, an obtaining unit 713, an encryption and decryption unit 714, a storage unit 715, and a display unit. 716 and a monitoring unit 717, wherein The receiving unit 711 is configured to receive an encrypted shooting instruction triggered by the user after the shooting application is started, and the switching unit 712 is configured to switch the normal shooting mode according to the encrypted shooting instruction received by the receiving unit 711. The acquisition unit 713 is configured to acquire the image data captured by the photographic lens in the encrypted shooting mode; the encryption and decryption unit 714 is configured to perform the image data acquired by the acquiring unit 713 Encryption processing; the storage unit 715 is configured to save the image data encrypted by the encryption and decryption unit 714.

Further, as shown in FIG. 8, the obtaining unit 713 includes: a monitoring subunit 811 for monitoring a system archive folder; and an extracting subunit 812 for monitoring the monitoring subunit 811 When new image data is added to the system file folder, the new image data is extracted from the system file folder.

Further, as shown in FIG. 9, the encryption and decryption unit 714 includes: a first encryption and decryption subunit 911, configured to extract a header of the image data, and a specific location and a specific number of the headers The bit is replaced with the user password.

Further, as shown in FIG. 9, the encryption and decryption unit 714 includes: a second encryption and decryption subunit 912, configured to extract a binary data storage sequence of the image data, and determine a bit according to the user password. a sorting rule for rearranging all the bits in the binary data storage sequence according to the sorting rule.

Further, the storage unit 715 is configured to save the image data encrypted by the encryption and decryption unit 714 into an encrypted file folder.

Further, the obtaining unit 713 is further configured to acquire an overview of the image data from a storage format of the image data. Further, the display unit 716 is configured to display the acquiring in a shooting interface. An overview of the image data acquired by unit 713 and a serial number of the image data in the encrypted archive folder.

Further, the receiving unit 711 is further configured to receive a decryption instruction, where the decryption instruction is used to indicate that the image data corresponding to the currently displayed overview image is decrypted; and the extraction subunit 812 is further configured to be used according to the receiving unit 711. The received decryption instruction extracts the image data corresponding to the overview image from the encrypted archive folder; the encryption and decryption unit 714 is further configured to decrypt the image data extracted by the extraction subunit 812; The storage unit 715 is further configured to save the image data decrypted by the encryption and decryption unit 714 into a system file folder.

Further, the display unit 716 is further configured to display a mode switching function key in the shooting interface; the monitoring unit 717 is configured to monitor the mode switching function key; and the receiving unit 711 is further configured to receive the user. A trigger instruction for switching the function key to the mode.

The photographing apparatus provided in this embodiment can switch the normal shooting mode to the encrypted shooting mode according to the received encrypted shooting instruction during the shooting process, and obtain the encrypted shooting mode in the encrypted shooting mode. The image data taken by the photographic lens is taken, and then the acquired image data is encrypted, and finally the encrypted image data is saved, so that subsequent users can view according to the user password. Compared with the prior art, when the user needs to exit the shooting application to encrypt the image data, the encrypted shooting mode can be provided in the shooting application, and the image captured by the shooting lens is automatically encrypted in the encrypted shooting mode. It saves the operation steps of repeatedly switching between the shooting application and the encryption protection application, thereby simplifying the user operation during the image encryption and saving process. At the same time, since the electronic device can automatically encrypt the image after the image is taken by the photographic lens, the user does not need to pay attention to the encryption process, so that the problem of encryption omission caused by the user forgetting can be avoided. Finally, the camera device provided by the embodiment is based on an improvement of the system shooting application most commonly used by the user, and can complete the image under the familiar shooting interface and shooting function of the user application. Automatic encryption, more in line with the user's usage habits.

In addition, the photographing apparatus provided in this embodiment can also display a schematic diagram of the current image, so that the user can select the saved mode of the encrypted saved (or ordinary saved) photo twice without switching the shooting mode. Simplify user operations.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, can be embodied in the form of a software product stored in a readable storage medium, such as a computer floppy disk. , hard disk or optical disk, etc., including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of protection of the scope of the patent application.

101~105‧‧‧Steps

Claims (16)

A photographing method, comprising: receiving an encrypted shooting instruction triggered by a user after starting the shooting application; switching the normal shooting mode to the encrypted shooting mode according to the encrypted shooting instruction; and acquiring the shooting lens in the encrypted shooting mode Image data, and the image data is stored in a system file folder; the image data is encrypted; and the image data after the encryption process is saved. The method of claim 1, wherein the step of acquiring the image data captured by the photographic lens and storing the image data in the system file folder comprises: monitoring the system file folder; When the new image data is added to the system file folder, the new image data is extracted from the system file folder. The method of claim 2, wherein the step of encrypting the image data comprises: extracting a header of the image data; replacing a specific location and a specific number of bits in the header User password. The method of claim 2, wherein the step of encrypting the image data comprises: extracting a binary data storage sequence of the image data; determining the bits according to the user password a sorting rule; and rearranging all of the bins in the binary data storage sequence according to the sorting rule. The method of claim 3, wherein the step of saving the encrypted image data comprises: saving the encrypted image data to an encrypted file folder. The method of claim 5, wherein the method further comprises: obtaining an overview of the image data from a storage format of the image data; and displaying the schematic image of the image data in a capture interface And the serial number of the image data in the encrypted file folder. The method of claim 6, wherein the method further comprises: receiving a decryption instruction for instructing decryption of the image data corresponding to the current display of the overview; from the encrypted archive folder Extracting the image data corresponding to the overview image; and decrypting the image data, and saving the decrypted image data into the system file folder. The method of claim 7, wherein the step of receiving a user-triggered encrypted photographing instruction comprises: displaying a mode switching function key in the photographing interface; monitoring the mode switching function key; and receiving the The user triggers a trigger command for the mode switch function key. A photographing device, comprising: a receiving unit, configured to receive an encrypted shooting instruction triggered by a user after starting the shooting application; and a switching unit configured to switch the normal shooting mode to the encryption according to the encrypted shooting instruction received by the receiving unit a shooting mode; an acquiring unit, configured to acquire image data captured by the photographic lens in the encrypted shooting mode, and store the image data in a system file folder; and an encryption and decryption unit, configured to acquire the image obtained by the acquiring unit The image data is encrypted; and the storage unit is configured to save the image data after the encryption and decryption unit is encrypted. The device of claim 9, wherein the obtaining unit comprises: a monitoring subunit for monitoring the system file folder; and an extracting subunit for extracting new image data from the system file folder when the monitoring subunit monitors the system file folder Extract the new image data. The device according to claim 10, wherein the encryption and decryption unit comprises: a first encryption and decryption subunit, configured to extract a header of the image data, a specific position and a specific number of bits in the header Replace with this user password. The device of claim 10, wherein the encryption and decryption unit comprises: a second encryption and decryption subunit, configured to extract a binary data storage sequence of the image data, and determine the bits according to the user password a sorting rule according to which the all the bits in the binary data storage sequence are rearranged. The device of claim 11 or 12, wherein the storage unit is configured to save the image data encrypted by the encryption and decryption unit to an encrypted file folder. The device of claim 13, wherein the acquiring unit is further configured to obtain a schematic image of the image data from a storage format of the image data; the device further includes a display unit for being used in the shooting interface. An overview of the image data acquired by the acquisition unit and a serial number of the image data in the encrypted archive folder are displayed. The device of claim 14, wherein the receiving unit is further configured to receive a decryption instruction, where the decryption instruction is used to indicate that the image data corresponding to the currently displayed schematic image is decrypted; the extracting subunit further And the image data corresponding to the schematic image is extracted from the encrypted file folder according to the decryption instruction received by the receiving unit; the encryption and decryption unit is further configured to decrypt the image data extracted by the extraction subunit; And the storage unit is further configured to save the image data decrypted by the encryption and decryption unit into the system file folder. The device of claim 15, wherein the device further comprises a monitoring unit; The display unit is further configured to display a mode switching function key in the shooting interface; the monitoring unit is configured to monitor the mode switching function key; and the receiving unit is further configured to receive the user switching the function key to the mode Trigger instruction.