CN103500066B - A screenshot device and method suitable for touch screen devices - Google Patents

Abstract

The invention discloses a screenshot device and method suitable for touch screen equipment. The method includes: receiving a touch track identified by the user on the touch screen to intercept a selected area of the current image, and determining a minimum rectangular frame containing each point on the touch track according to each point on the touch track, and Highlight the rectangular frame, and then capture a portion of the screen image within the smallest rectangular frame. The technical solution of the present invention can automatically generate a rectangular frame according to the user's touch track, and accurately capture the area selected by the user for screen capture, thereby solving the problem of low precision due to the large contact area of the finger or stylus with the screen. It's hard to choose exactly what to do with the screenshot section.

Description

A screenshot device and method suitable for touch screen devices

technical field

The invention relates to the technical field of computer applications, in particular to a screenshot device and method suitable for touch screen devices.

Background technique

Generally, when people want to share a certain section of content on the screens of smart terminals such as computers and mobile phones with others, according to the different nature of the content, they may send URLs, or send pictures, or copy and input text. This method not only complicates the sharing process, but also loses the form of the original content to a certain extent. By passing screenshots of screen pages, people can directly and conveniently share or communicate page content without caring about the form of content to be shared. Especially on touch screen devices, it is difficult to accurately save and copy text or pictures because the finger click area is blurrier than the mouse. At this point, taking screenshots to convey screen information will improve the ease of doing this and best match the appearance of the original content source.

On PC, there are numerous screenshot software. The way most screenshot software selects the screenshot area is to give a regular rectangular frame, with the upper left corner or the lower left corner as the coordinate starting point, and the user drags the frame size with the mouse. However, in touch-screen devices (such as mobile phones and tablet computers), due to the large contact area between devices such as fingers or stylus and the screen, the accuracy cannot be compared with PC mouse operations, and it is difficult to accurately select the frame size at one time.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a screenshot device and method suitable for touch screen devices that overcome the above problems or at least partially solve the above problems.

According to one aspect of the present invention, a screenshot device suitable for touch screen devices is provided, the device comprising:

The display processing unit receives the user's touch track on the touch screen to identify and intercept the selected area of the current image, and determines the smallest rectangular frame containing each point on the touch track according to each point on the touch track, and highlights display the rectangle;

The screenshot unit is adapted to capture a part of the screen image located in the rectangular frame.

Optionally, the display processing unit is further adapted to save the current screen of the touch screen of the device to In the memory, then read the current picture from the memory, and save it as a current image, and display the current image on the touch screen; and be suitable for covering the mask effect on the entire area of the current image on the touch screen, and The mask effect is removed from the area of the rectangular frame to highlight the rectangular frame.

Optionally, the display processing unit is adapted to take the lower left corner of the current image as the origin of coordinates, traverse the coordinate values of each point on the touch track, and obtain the ordinate among the coordinate values of all points traversed The maximum value y _max , the minimum value of the ordinate y _min , the maximum value of the abscissa x _max and the minimum value of the abscissa x _min , and then let (x _max , y _max ) be the upper right vertex of the rectangular box, (x _max , y _min ) is the lower-right vertex of the rectangle, (x _min , y _min ) is the lower-left vertex of the rectangle, and (x _min , y _max ) is the upper-left vertex of the rectangle.

Optionally, the device further includes:

The rectangular frame editing unit is adapted to display a plurality of touch points for adjusting the size of the rectangular frame on the boundary of the rectangular frame.

Optionally, the device further includes:

The closed track processing unit is adapted to process a part outside the closed track in the rectangular frame into a transparent color when the touch track is a closed track.

According to another aspect of the present invention, a screenshot method suitable for a touch screen device is provided, the method comprising:

Receiving the touch track that the user marks on the touch screen to intercept the selected area of the current image, according to each point on the touch track, determine the smallest rectangular frame containing each point on the touch track, and highlight the rectangle frame;

Capture a portion of the screen image within the rectangle.

Optionally, before receiving the touch track identified by the user on the touch screen to capture the selected area of the current image, the method further includes:

According to the screenshot trigger command, first save the current screen of the touch screen of the device into the memory;

Read the current picture from the memory, save it as a current image, and display the current image on the touch screen;

The highlighting the rectangular frame includes: covering the entire area of the current image on the touch screen with a mask effect, and removing the mask effect from the area of the rectangular frame to highlight the rectangular frame.

Optionally, according to each point on the touch track, determining the smallest rectangular frame containing each point on the touch track includes:

Taking the lower left corner of the current image as the coordinate origin, traversing the coordinate values of each point on the touch track;

Obtain the maximum value y _max of the ordinate, the minimum value y _min of the ordinate, the maximum value x _max of the abscissa and the minimum value x _min of the abscissa among the coordinate values of all points traversed;

Let (x _max , y _max ) be the upper right vertex of the rectangle, (x _max , y _min ) be the lower right vertex of the rectangle, (x _min , y _min ) be the lower left vertex of the rectangle, (x _min , y _max ) is the top-left vertex of the rectangle.

Optionally, the method further includes:

A plurality of touch points for adjusting the size of the rectangular frame are displayed on the border of the rectangular frame.

Optionally, the method further includes: when the touch track is a closed track, processing a part outside the closed track in the rectangular frame into a transparent color.

According to the present invention, it is received that the user marks the touch track for intercepting the selected area of the current image on the touch screen, and according to each point on the touch track, the smallest rectangular frame containing each point on the touch track is determined, And the technical solution of highlighting the rectangular frame and then intercepting a part of the screen image located in the smallest rectangular frame can automatically generate a rectangular frame according to the user's touch track, and accurately capture the area selected by the user for screenshot.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same components. In the attached picture:

Fig. 1 shows a flow chart of a screenshot method suitable for a touch screen device according to an embodiment of the present invention;

Fig. 2 shows a detailed flowchart of a screenshot method suitable for a touch screen device according to an embodiment of the present invention;

Fig. 3 shows a schematic diagram of a touch track formed by a user on a current image according to an embodiment of the present invention;

Fig. 4 shows a schematic diagram of a minimum rectangular frame containing each point on the user's touch track according to an embodiment of the present invention;

Fig. 5 shows a schematic diagram of displaying multiple touch points for adjusting the size of the rectangular frame on the boundary of the rectangular frame according to an embodiment of the present invention;

FIG. 6 shows a structural diagram of a screenshot device suitable for touch screen devices according to an embodiment of the present invention;

Fig. 7 shows a structural diagram of a screenshot device suitable for a touch screen device according to yet another embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

Fig. 1 shows a flow chart of a screenshot method suitable for a touch screen device according to an embodiment of the present invention. As shown in Figure 1, the method includes:

Step S110, receiving the user's touch track on the touch screen to identify and intercept the selected area of the current image, according to each point on the touch track, determine the smallest rectangular frame containing each point on the touch track, and highlight The rectangular box.

Step S120, intercepting a part of the screen image within the rectangular frame.

Through the method shown in Figure 1, a rectangular frame can be automatically generated according to the user's touch track, and the area selected by the user can be accurately captured for screenshots. This solves the problem that the accuracy cannot be compared with the mouse due to the large contact area between the finger and the screen. It is difficult to select the border of the screenshot part accurately at one time. In this way, the user only needs to draw a circle or outline the range of the key part on the screen of the touch screen device to generate a screenshot of the smallest rectangular frame where the track is located.

In one embodiment of the present invention, before step S110, the method further includes: according to the screenshot trigger command, first saving the current screen of the touch screen of the device into the memory, and then reading the current screen from the memory, and Save as the current image and display the current image on the touch screen. The highlighting of the rectangular frame in step S110 specifically includes: covering the entire area of the current image on the touch screen with a mask effect, and removing the mask effect in the area of the rectangular frame to highlight the rectangular frame . Details are shown in Figure 2.

Fig. 2 shows a detailed flowchart of a screenshot method suitable for a touch screen device according to an embodiment of the present invention. As shown in Figure 2, the method includes:

Step S210, according to the screenshot trigger command, first save the current screen of the touch screen of the device into the memory.

Step S220, read the current picture from the internal memory, and save it as a current image.

In this step, saving as the current image refers to saving as an image format.

In step S230, the current image is displayed on the touch screen, and the entire area of the current image on the touch screen is covered with a mask effect.

In this step, a dark mask is placed on the current image on the touch screen.

Step S240, receiving the touch track marked by the user on the touch screen to capture the selected area of the current image, and determining a minimum rectangular frame containing each point on the touch track according to each point on the touch track.

In this step, the user slides a finger on the touch screen to touch and circle the area to be screenshotted to form a touch track, as shown in FIG. 3 . Fig. 3 shows a schematic diagram of a touch track formed by a user on a current image according to an embodiment of the present invention.

Traverse each point on the user's touch track, and calculate the four vertices of the smallest rectangle containing all points on the touch track. Specifically: take the lower left corner of the current image on the touch screen as the coordinate origin, traverse the coordinate value of each point on the touch track; obtain the maximum value of the vertical coordinate y _max and the minimum value of the vertical coordinate among the coordinate values of all points traversed y _min , the maximum value of the abscissa x _max and the minimum value of the abscissa x _min ; let (x _max , y _max ) be the upper right vertex of the rectangle, (x _max , y _min ) be the lower right vertex of the rectangle, (x _min , y _min ) is the lower left vertex of the rectangle, and (x _min , y _max ) is the upper left vertex of the rectangle.

Step S250, displaying the rectangular frame on the current image on the touch screen, and removing the mask effect in the region of the rectangular frame to highlight the rectangular frame.

Fig. 4 shows a schematic diagram of a minimum rectangular frame containing each point on the user's touch track according to an embodiment of the present invention, wherein the mask in the rectangular frame area is removed and becomes brighter than other parts, so that Get the highlighted effect.

Step S260, displaying a plurality of touch points for adjusting the size of the rectangular frame on the boundary of the rectangular frame, if the user moves these touch points to adjust the size of the rectangular frame.

Fig. 5 shows a schematic diagram of displaying a plurality of touch points for adjusting the size of the rectangular frame on the boundary of the rectangular frame according to an embodiment of the present invention. Wherein, the user can further edit the size of the rectangular frame by moving the touch point.

Step S270, intercepting the part inside the rectangular frame of the current image displayed on the touch screen.

The intercepted part can be directly saved, copied or shared with others.

In an embodiment of the present invention, the screenshot method applicable to touch screen devices of the present invention may further include: when the touch track is a closed track, processing the part outside the closed track in the rectangular frame into a transparent color. For example, the part outside the closed track in the rectangular frame can be processed into a png image with transparent color.

Fig. 6 shows a structural diagram of a screenshot device suitable for a touch screen device according to an embodiment of the present invention. As shown in FIG. 6 , the device includes: a display processing unit 610 and a screenshot unit 620 .

The display processing unit 610 receives the user's touch track on the touch screen to identify and intercept the selected area of the current image, and determines the smallest rectangular frame containing each point on the touch track according to each point on the touch track, and highlight said rectangular box;

The screenshot unit 620 is adapted to capture a part of the screen image within the rectangular frame.

The device shown in Figure 6 can automatically generate a rectangular frame according to the user's touch track, and accurately capture the area selected by the user to take a screenshot. This solves the problem that the accuracy cannot be compared with the mouse due to the large contact area between the finger and the screen. It is difficult to accurately select the border of the screenshot part at one time. In this way, the user only needs to draw a circle or outline the range of the key part on the screen of the touch screen device to generate a screenshot of the smallest rectangular frame where the track is located.

Fig. 7 shows a structural diagram of a screenshot device suitable for a touch screen device according to yet another embodiment of the present invention. As shown in FIG. 7 , the device includes: a display processing unit 710 , a screenshot unit 720 , a rectangular frame editing unit 730 and a closed track processing unit 740 .

The display processing unit 710 receives the user's touch track on the touch screen to identify and intercept the selected area of the current image, and determines the smallest rectangular frame containing each point on the touch track according to each point on the touch track, and Highlight the rectangular box.

The screenshot unit 720 is adapted to capture a part of the screen image within the rectangular frame.

The rectangular frame editing unit 730 is adapted to display a plurality of touch points for adjusting the size of the rectangular frame on the boundary of the rectangular frame.

The closed track processing unit 740 is adapted to process a part outside the closed track in the rectangular frame into a transparent color when the touch track is a closed track.

In one embodiment of the present invention, the display processing unit 701 is adapted to, before receiving the user's touch track on the touch screen to identify the selected area for capturing the current image, according to the screenshot trigger command, first display the current image on the touch screen of the device. Save the picture to the memory, then read the current picture from the memory, save it as the current image, and display the current image on the touch screen; and be suitable for covering the entire area on the current image on the touch screen effect, and remove the mask effect in the area of the rectangular frame to highlight the rectangular frame. Here, saving the current picture in the internal memory as the current image refers to saving it as a picture format. The masking effect refers to placing a dark mask on the current image on the touch screen.

In one embodiment of the present invention, the display processing unit 701 is adapted to take the lower left corner of the current image as the coordinate origin, traverse the coordinate values of each point on the touch track, and obtain the coordinate values of all points traversed The maximum value of the ordinate y _max , the minimum value of the y-coordinate y _min , the maximum value of the abscissa x _max and the minimum value of the abscissa x _min , and then let (x _max , y _max ) be the upper right vertex of the rectangular box, (x _max , y _min ) is the lower-right vertex of the rectangular frame, (x _min , y _min ) is the lower-left vertex of the rectangular frame, and (x _min , y _max ) is the upper-left vertex of the rectangular frame.

In summary, according to the present invention, the receiving user identifies the touch track of the selected area of the current image on the touch screen, and according to each point on the touch track, determine the the minimum rectangular frame, and highlight the rectangular frame, and then intercept the partial screen image located in the minimum rectangular frame, the technical solution can automatically generate a rectangular frame according to the user's touch track, and accurately capture the area selected by the user for screenshot , which solves the problem that it is difficult to accurately select the frame of the screenshot part at one time due to the large contact area between the finger and the screen, and the accuracy cannot be compared with that of the mouse.

It should be noted:

The algorithms and displays presented herein are not inherently related to any particular computer, virtual system, or other device. Various generic systems can also be used with the teachings based on this. The structure required to construct such a system is apparent from the above description. Furthermore, the present invention is not specific to any particular programming language. It should be understood that various programming languages can be used to implement the contents of the present invention described herein, and the above description of specific languages is for disclosing the best mode of the present invention.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, in order to streamline this disclosure and to facilitate an understanding of one or more of the various inventive aspects, various features of the invention are sometimes grouped together in a single embodiment, figure, or its description. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art can understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. Modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore may be divided into a plurality of sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings), as well as any method or method so disclosed, may be used in any combination, except that at least some of such features and/or processes or units are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will understand that although some embodiments described herein include some features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention. and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) can be used in practice to implement some or all of some or all of the components in the screenshot device suitable for touch screen devices according to the embodiments of the present invention Function. The present invention can also be implemented as an apparatus or an apparatus program (for example, a computer program and a computer program product) for performing a part or all of the methods described herein. Such a program for realizing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet site, or provided on a carrier signal, or provided in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names.

Claims (8)

1. A screenshot device suitable for a touch screen device, wherein the screenshot device comprises:

the display processing unit is suitable for displaying the saved screen image on a touch screen; the method comprises the steps of receiving a touch track of a user for identifying and intercepting a selected area of a current image on a touch screen, determining a minimum rectangular frame containing each point on the touch track according to each point on the touch track, and highlighting the rectangular frame; wherein the touch trajectory is obtained by a sliding operation;

the screenshot unit is suitable for intercepting part of the screen image positioned in the rectangular frame;

and the closed track processing unit is suitable for processing the part outside the closed track in the rectangular frame into transparent color when the touch track is the closed track.

2. The apparatus of claim 1, wherein,

the display processing unit is further adapted to, before the receiving user marks and intercepts the touch trajectory of the selected area of the current image on the touch screen, first store the current picture of the touch screen of the device in the memory according to the screenshot trigger command, then read the current picture from the memory, store the current picture as the current image, and display the current image on the touch screen; and is adapted to overlay a mask effect over the entire area on the current image on the touch screen and remove the mask effect in the area of the rectangular frame to highlight the rectangular frame.

3. The apparatus of claim 1, wherein,

the display processing unit is suitable for traversing the coordinate values of all points on the touch track by taking the lower left corner of the current image as the origin of coordinates, and acquiring the maximum y of the ordinate in the coordinate values of all the traversed points_maxOrdinate minimum value y_minMaximum value x of abscissa_maxAnd the minimum value x of the abscissa_minThen order (x)_max，y_max) Is the top right corner vertex of the rectangular box, (x)_max，y_min) Is the vertex of the lower right corner of the rectangular frame, (x)_min，y_min) Is the vertex of the lower left corner of the rectangular box, (x)_min，y_max) The top left corner vertex of the rectangular box.

4. The apparatus of any one of claims 1 to 3, wherein the apparatus further comprises:

and the rectangular frame editing unit is suitable for displaying a plurality of touch points for adjusting the size of the rectangular frame on the boundary of the rectangular frame.

5. A screenshot method applicable to a touch screen device, wherein the method comprises the following steps:

displaying the saved screen image on a touch screen;

receiving a touch track of a user on a touch screen for identifying and intercepting a selected area of a current image, determining a minimum rectangular frame containing each point on the touch track according to each point on the touch track, and highlighting the rectangular frame; wherein the touch trajectory is obtained by a sliding operation;

intercepting part of screen images positioned in the rectangular frame;

the method further comprises the following steps:

and when the touch track is a closed track, processing the part outside the closed track in the rectangular frame into transparent color.

6. The method of claim 5, wherein prior to the receiving the touch trajectory of the user identifying the select area of the current image on the touch screen for interception, the method further comprises:

according to a screenshot triggering command, firstly, storing a current picture of a touch screen of the equipment into a memory;

reading the current picture from the memory, storing the current picture as a current image, and displaying the current image on a touch screen;

the highlighting the rectangular box comprises: covering the mask effect on the whole area of the current image on the touch screen, and removing the mask effect in the area of the rectangular frame to highlight the rectangular frame.

7. The method of claim 5, wherein the determining, from each point on the touch trajectory, a smallest rectangular box containing each point on the touch trajectory comprises:

traversing coordinate values of each point on the touch track by taking the lower left corner of the current image as a coordinate origin;

acquiring the maximum value y of the ordinate in the coordinate values of all the traversed points_maxOrdinate minimum value y_minMaximum value x of abscissa_maxAnd the minimum value x of the abscissa_min；

Order (x)_max，y_max) Is the upper right of a rectangular frameAngular point, (x)_max，y_min) Is the vertex of the lower right corner of the rectangular frame, (x)_min，y_min) Is the vertex of the lower left corner of the rectangular box, (x)_min，y_max) The top left corner vertex of the rectangular box.

8. The method of any one of claims 5 to 7, wherein the method further comprises:

and displaying a plurality of touch points for adjusting the size of the rectangular frame on the boundary of the rectangular frame.