CN113805993B - Method for rapidly and continuously capturing images - Google Patents
Method for rapidly and continuously capturing images Download PDFInfo
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- CN113805993B CN113805993B CN202111029312.1A CN202111029312A CN113805993B CN 113805993 B CN113805993 B CN 113805993B CN 202111029312 A CN202111029312 A CN 202111029312A CN 113805993 B CN113805993 B CN 113805993B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/543—User-generated data transfer, e.g. clipboards, dynamic data exchange [DDE], object linking and embedding [OLE]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/13—Edge detection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses a method for rapidly and continuously capturing images, which belongs to the technical field of graphic processing and solves the problem that the continuous capturing images cannot be automatically saved by self-definition in the prior art, and a captured image area is determined by manually dragging a mouse, and comprises the following steps: the method comprises the steps of storing a path by a preset value, and obtaining a mouse moving position to obtain a mouse coordinate system; and (B) step (B): starting a screenshot shortcut key, and performing screenshot on a current screen to obtain a cached screenshot; step C: mapping a mouse coordinate system and an image coordinate system on the mouse moving range and the screen image to obtain a mapping relation between the mouse position and the pixel position; step D: performing edge detection on the cached screenshot to obtain a screenshot area; step E: the screenshot area is automatically saved, so that the screenshot process is simplified, and the screenshot can be saved in a self-defined and rapid continuous mode.
Description
Technical Field
The invention belongs to the technical field of image processing, and particularly relates to a rapid and continuous screenshot method.
Background
The screenshot is a visual image taken by a computer that can be displayed on a screen or other display device. The screen shots can be taken by an operating system or special screen shot software, or by external equipment such as a digital camera, and the screen shots can be taken in static screen shots and dynamic screen shots, wherein the former screen shots obtain a bitmap file such as BMP, PNG, JPEG, the latter screen shots obtain a video file, and the purpose of the screen shots is to show program interface icons, game scenes and the like in a specific state, namely, the screen shots seen on the screen are saved as part of the picture which can be selectively taken.
The existing screenshot tool needs to manually drag a mouse to determine a screenshot area, and operation redundancy is achieved; and the automatic storage operation of continuous screenshot cannot be customized because the storage operation is required to be carried out after each screenshot; the existing screenshot tool needs to switch to an interface thereof to perform screenshot starting operation after opening a program.
Disclosure of Invention
Aiming at the problem that continuous screenshot automatic save operation cannot be performed in a self-defined mode in the prior art and screenshot areas need to be determined by manually dragging a mouse, the invention provides a rapid and continuous screenshot method, which aims at: the screen capture flow is simplified, and the screen capture can be self-defined and quickly and continuously saved.
The technical scheme adopted by the invention is as follows:
a method of rapid succession of screenshots comprising the steps of:
step A: presetting a storage path, and acquiring a mouse moving position to obtain a mouse coordinate system;
and (B) step (B): starting a screenshot shortcut key, and performing screenshot on a current screen to obtain a cached screenshot;
step C: mapping a mouse coordinate system and an image coordinate system on the mouse moving range and the screen image to obtain a mapping relation between the mouse position and the pixel position;
step D: performing edge detection on the cached screenshot to obtain a screenshot area;
step E: and automatically storing the screenshot area.
By adopting the scheme, the screenshot can be automatically saved in a preset saving path after the screenshot is completed, and continuous and rapid saving of the screenshot can be realized, wherein the step C can determine the coordinates of two clicks of the mouse and determine the screenshot range according to the coordinates, thereby solving the problem that the mouse needs to be dragged and the operation is complicated in the traditional technology.
The specific steps of the step A are as follows:
step A1: detecting the position of the mouse to obtain the current mouse coordinate;
step A2: acquiring a mouse activity area to obtain a mouse activity coordinate system;
step A3: and obtaining the moving position of the mouse to finally obtain the terminal point coordinate system of the mouse.
The specific steps of the step B are as follows:
step B1: clicking a shortcut key on a keyboard to obtain an instruction for starting screenshot;
step B2: and clicking any position of the screen through a mouse to obtain the current screen cache screenshot.
By adopting the scheme, the normal computer operation in the noninductive state and the convenient switching in the screenshot mode of the tool can be realized through the preset shortcut key, and the tool is not required to be repeatedly selected to start screenshot when the screenshot is performed.
The specific steps of the step C are as follows:
step C1: carrying out pixel identification on the cached screenshot to obtain a screenshot pixel coordinate system;
step C2: mapping the mouse movable coordinate system and the screen image coordinate system to obtain a mapping relation;
step C3: and mapping a mouse coordinate system and an image coordinate system on the mouse moving range and the screen image to finally obtain the mapping relation between the mouse position and the pixel position.
The specific steps of the step D are as follows:
step D1: performing image processing on the cached screenshot to obtain a binarized gray value;
step D2: performing two mouse clicks on the diagonal position of the range to be intercepted in the current screen to obtain the coordinates of the two mouse clicks;
step D3: performing edge detection on the click coordinates of the mouse outwards to obtain a boundary of gray value change;
step D4: carrying out boundary extension on the detected pixel points to obtain the whole closed straight-edge coordinates;
step D5: and D4, obtaining a screenshot area finally according to the coordinate value of the closed area in the step.
The specific steps of the step E are as follows:
step E1: d, automatically storing the image of the intercepted area in the step D to obtain a screenshot stored to a specified path;
step E2: a screenshot is obtained that is saved on the locally specified path.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. the method has the advantages that the screen shots can be automatically saved in a preset saving path after the screen shots are completed, continuous and rapid saving of the screen shots can be realized, the coordinates of two clicks of the mouse can be determined in the step C, the screen shot range is determined according to the coordinates, the problem that the mouse needs to be dragged and the operation is complicated in the traditional technology is solved, and by the method, the flow of the screen shots is simplified, and rapid and continuous screen shots are realized.
2. Through a preset shortcut key, normal computer operation in a non-inductive state and convenient switching in a screenshot mode of the tool can be realized, and the tool does not need to be repeatedly selected to start screenshot when the screenshot is performed.
Drawings
The invention will now be described by way of example and with reference to the accompanying drawings in which:
FIG. 1 is a diagram of a screenshot process of one embodiment of the invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
The present invention is described in detail below with reference to fig. 1.
Embodiment one:
a method of rapid succession of screenshots comprising the steps of:
step A: presetting a storage path, and acquiring a mouse moving position to obtain a mouse coordinate system;
and (B) step (B): starting a screenshot shortcut key, and performing screenshot on a current screen to obtain a cached screenshot;
step C: mapping a mouse coordinate system and an image coordinate system on the mouse moving range and the screen image to obtain a mapping relation between the mouse position and the pixel position;
step D: performing edge detection on the cached screenshot to obtain a screenshot area;
step E: and automatically storing the screenshot area.
The specific steps of the step A are as follows:
step A1: detecting the position of the mouse to obtain the current mouse coordinate;
step A2: acquiring a mouse activity area to obtain a mouse activity coordinate system;
step A3: and obtaining the moving position of the mouse to finally obtain the terminal point coordinate system of the mouse.
The specific steps of the step B are as follows:
step B1: clicking a shortcut key on a keyboard to obtain an instruction for starting screenshot;
step B2: and clicking any position of the screen through a mouse to obtain the current screen cache screenshot.
The specific steps of the step C are as follows:
step C1: carrying out pixel identification on the cached screenshot to obtain a screenshot pixel coordinate system;
step C2: mapping the mouse movable coordinate system and the screen image coordinate system to obtain a mapping relation;
step C3: and mapping a mouse coordinate system and an image coordinate system on the mouse moving range and the screen image to finally obtain the mapping relation between the mouse position and the pixel position.
The specific steps of the step D are as follows:
step D1: performing image processing on the cached screenshot to obtain a binarized gray value;
step D2: performing two mouse clicks on the diagonal position of the range to be intercepted in the current screen to obtain the coordinates of the two mouse clicks;
step D3: performing edge detection on the click coordinates of the mouse outwards to obtain a boundary of gray value change;
step D4: carrying out boundary extension on the detected pixel points to obtain the whole closed straight-edge coordinates;
step D5: and D4, obtaining a screenshot area finally according to the coordinate value of the closed area in the step.
The specific steps of the step E are as follows:
step E1: d, automatically storing the image of the intercepted area in the step D to obtain a screenshot stored to a specified path;
step E2: a screenshot is obtained that is saved on the locally specified path.
In the above embodiment, the diagonal position of the region to be intercepted is clicked by a mouse, the range which needs to be intercepted is determined by automatically performing boundary recognition, and the method is realized by binarization processing of gray values, and performing gaussian filtering, gradient calculation, edge tracking and other technologies by using a Canny operator.
The tool runs in the background, and shortcut keys are preset through a keyboard control function, so that computer operation and convenient switching in a screenshot mode of the tool can be normally performed in a noninductive state; the tool does not need to be repeatedly selected to start screenshot when the screenshot is started.
When the method is operated, the shape of the screenshot in the embodiment is rectangular, a storage path and a shortcut key are preset firstly, wherein the shortcut key is a keyboard key, the shortcut key is firstly pressed down to enter a screenshot mode when the screenshot is performed, a mouse is clicked at any position in a screen to obtain a cached screenshot, two endpoints of a diagonal line in the cached screenshot are clicked through the mouse, the two endpoints of the diagonal line are determined, the shape of the screenshot rectangle can be determined, after two mouse clicks are performed, the determination of the screenshot range is completed, gray scale processing is performed on the graph outside the screenshot rectangle, in the process, the screenshot image is highlighted, after the screenshot is completed, the screenshot is stored, and the storage process is a storage path which is automatically stored to a preset value.
The foregoing examples merely represent specific embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present application, which fall within the protection scope of the present application.
Claims (3)
1. A method of rapid succession of screenshots comprising the steps of:
step A: presetting a storage path, and acquiring a mouse moving position to obtain a mouse coordinate system;
and (B) step (B): starting a screenshot shortcut key, and performing screenshot on a current screen to obtain a cached screenshot;
step C: mapping a mouse coordinate system and an image coordinate system on the mouse moving range and the screen image to obtain a mapping relation between the mouse position and the pixel position;
step D: performing edge detection on the cached screenshot to obtain a screenshot area;
step E: automatically storing the screenshot area;
the specific steps of the step C are as follows:
step C1: carrying out pixel identification on the cached screenshot to obtain a screenshot pixel coordinate system;
step C2: mapping the mouse movable coordinate system and the screen image coordinate system to obtain a mapping relation;
step C3: mapping a mouse coordinate system and an image coordinate system on the mouse moving range and the screen image to finally obtain a mapping relation between the mouse position and the pixel position;
the specific steps of the step D are as follows:
step D1: performing image processing on the cached screenshot to obtain a binarized gray value;
step D2: performing two mouse clicks on the diagonal position of the range to be intercepted in the current screen to obtain the coordinates of the two mouse clicks;
step D3: performing edge detection on the click coordinates of the mouse outwards to obtain a boundary of gray value change;
step D4: carrying out boundary extension on the detected pixel points to obtain the whole closed straight-edge coordinates;
step D5: according to the closed region coordinate value of the step D4, a screenshot region is finally obtained;
the specific steps of the step A are as follows:
step A1: detecting the position of the mouse to obtain the current mouse coordinate;
step A2: acquiring a mouse activity area to obtain a mouse activity coordinate system;
step A3: and obtaining the moving position of the mouse to finally obtain the terminal point coordinate system of the mouse.
2. A method of rapid succession of screenshots according to claim 1, wherein said specific step of step B is:
step B1: clicking a shortcut key on a keyboard to obtain an instruction for starting screenshot;
step B2: and clicking any position of the screen through a mouse to obtain the current screen cache screenshot.
3. A method of rapid succession of screenshots according to claim 1, wherein said step E is performed by the steps of:
step E1: d, automatically storing the image of the intercepted area in the step D to obtain a screenshot stored to a specified path;
step E2: a screenshot is obtained that is saved on the locally specified path.
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