CN110162251B - Image scaling method and device, storage medium and electronic equipment - Google Patents

Image scaling method and device, storage medium and electronic equipment Download PDF

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Publication number
CN110162251B
CN110162251B CN201910413541.XA CN201910413541A CN110162251B CN 110162251 B CN110162251 B CN 110162251B CN 201910413541 A CN201910413541 A CN 201910413541A CN 110162251 B CN110162251 B CN 110162251B
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target image
point
zooming
initial
determining
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CN110162251A (en
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钟萦雅
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Netease Hangzhou Network Co Ltd
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Netease Hangzhou Network Co Ltd
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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
    • G06F3/04847—Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
    • 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]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting

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  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

The embodiment of the invention relates to an image zooming method and device, a storage medium and electronic equipment, belonging to the technical field of image processing and being applied to an equipment terminal with a first touch display screen and a second touch display screen; the image scaling method includes: displaying a target image in the first touch display screen at least partially; detecting a first control operation of a first control medium acting on the target image and a second control operation of a second control medium acting on the second touch display screen; determining a zooming direction and a zooming multiple of the target image based on a first operation track of the first control operation and a second operation track of the second control operation; and controlling the zooming of the target image according to the zooming direction and the zooming times. The method can improve the accuracy of the scaling result.

Description

Image scaling method and device, storage medium and electronic equipment
Technical Field
The embodiment of the invention relates to the technical field of image processing, in particular to an image scaling method, an image scaling device, a computer-readable storage medium and electronic equipment.
Background
With the development of science and technology, image processing is more and more widely applied, and image scaling is an important link in image processing.
In the existing image zooming method based on the device terminal, the user usually zooms in or zooms out the image to be zoomed on the same plane by placing a finger on the image to be zoomed, and then adopting the pinch-off of the finger. That is to say, for the stereoscopic image to be zoomed, firstly, the dragging of the finger is required to adjust the zooming direction, and then the pinching and the zooming are performed along the direction, so as to achieve the purpose of zooming the image to be zoomed.
However, the above scheme cannot adjust the zooming direction while pinching, and therefore the following disadvantages occur: on one hand, the accuracy of the zooming result of the image to be zoomed is lower because the zooming direction and the zooming range can not be considered at the same time; on the other hand, since the zooming direction needs to be adjusted first and then the zooming range is adjusted along the zooming direction, the whole zooming process is complicated and time-consuming.
Therefore, it is desirable to provide a new image scaling method and apparatus.
It is to be noted that the information invented in the above background section is only for enhancing the understanding of the background of the present invention, and therefore, may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
An object of the present invention is to provide an image scaling method, an image scaling apparatus, a computer-readable storage medium, and an electronic device, which overcome, at least to some extent, the problem of low accuracy of the scaling result due to the limitations and disadvantages of the related art.
According to one aspect of the present disclosure, an image zooming method is provided, which is applied to a device terminal having a first touch display screen and a second touch display screen; the image scaling method includes:
displaying a target image in the first touch display screen at least partially;
detecting a first control operation of a first control medium acting on the target image and a second control operation of a second control medium acting on the second touch display screen;
determining a zooming direction and a zooming multiple of the target image based on a first operation track of the first control operation and a second operation track of the second control operation;
and controlling the zooming of the target image according to the zooming direction and the zooming times.
In an exemplary embodiment of the present disclosure, determining the zoom direction and the zoom multiple of the target image based on the first operation trajectory of the first control operation and the second operation trajectory of the second control operation includes:
determining the zooming direction of the target image based on a first moving direction of the first operation track and a second moving direction of the second operation track;
determining the zoom factor of the target image based on a first movement distance of the first operation track and a second movement distance of the second operation track.
In an exemplary embodiment of the present disclosure, determining the zoom direction of the target image based on the first movement direction of the first manipulation trajectory and the second movement direction of the second manipulation trajectory includes:
acquiring a first initial touch point and a first final touch point of a first operation track, and a second initial touch point and a second final touch point of a second operation track;
determining the first moving direction according to the first initial touch point and the first final touch point, and determining the second moving direction according to the second initial touch point and the second final touch point;
and determining the zooming direction of the target image on a first plane according to the first moving direction and the second moving direction, wherein the first plane is a plane where the first touch display screen is located.
In an exemplary embodiment of the present disclosure, determining the zoom direction of the target image based on the first moving direction of the first manipulation trajectory and the second moving direction of the second manipulation trajectory further includes:
acquiring a first initial operation point and a first final operation point of a first operation track, and a second initial operation point and a second final operation point of a second operation track;
determining the first moving direction according to the first initial operating point and the first final operating point, and determining the second moving direction according to the second initial operating point and the second final operating point;
and determining the zooming direction of the target image on a second plane according to the first moving direction and the second moving direction, wherein the second plane is a plane perpendicular to the first touch display screen.
In an exemplary embodiment of the present disclosure, the image scaling method further includes:
and determining a preset area of the target image according to the initial touch point position of the first control operation.
In an exemplary embodiment of the present disclosure, determining the zoom direction and the zoom multiple of the target image based on the first operation trajectory of the first control operation and the second operation trajectory of the second control operation includes:
determining the zooming direction and the zooming multiple of the preset area of the target image based on a first operation track of the first control operation and a second operation track of the second control operation.
In an exemplary embodiment of the present disclosure, the obtaining a first initial touch point and a first final touch point of a first operation trajectory, and a second initial touch point and a second final touch point of a second operation trajectory includes:
determining a coordinate origin according to the central point of the target image, and establishing a plane coordinate axis of the target image according to the coordinate origin and the long edge and the wide edge of the first touch display screen;
acquiring a first initial touch point of the first operation track according to a first initial position of the first operation track in the plane coordinate axis;
acquiring a first final touch point of the first operation track according to a first termination position of the first operation track in the plane coordinate axis;
acquiring a second initial touch point of the second operation track according to a second initial position of the second operation track in the plane coordinate axis;
and acquiring a second final touch point of the second operation track according to a second termination position of the second operation track in the plane coordinate axis.
In an exemplary embodiment of the present disclosure, the obtaining a first initial operation point and a first final operation point of a first operation trajectory, and a second initial touch point and a second final operation point of a second operation trajectory includes:
determining a coordinate origin according to the central point of the target image, and establishing a space coordinate axis of the target image according to the coordinate origin, the long side and the wide side of the first touch display screen and the direction perpendicular to the first touch display screen;
acquiring the first initial touch point of the first operation track according to a first initial position of the first operation track in the space coordinate axis;
acquiring the first final operation point of the first operation track according to a first termination position of the first operation track in the space coordinate axis;
acquiring a second initial touch point of the second operation track according to a second initial position of the second operation track in the space coordinate axis;
and acquiring a second final operation point of the second operation track according to a second termination position of the second operation track in the space coordinate axis.
In an exemplary embodiment of the present disclosure, the image scaling method further includes:
detecting a third sliding operation of the first control medium on the target image;
and controlling the movement or rotation of the target image according to the third sliding operation.
According to one aspect of the present disclosure, an image zooming apparatus is provided, which is applied to a device terminal having a first touch display screen and a second touch display screen; the image scaling apparatus includes:
the display module is used for displaying at least part of a target image in the first touch display screen;
the first detection device is used for detecting a first control operation of a first control medium acting on the target image and a second control operation of a second control medium acting on the second touch display screen;
a first determining module, configured to determine a scaling direction and a scaling multiple of the target image based on a first operation trajectory of the first control operation and a second operation trajectory of the second control operation;
and the first control module is used for controlling the zooming of the target image according to the zooming direction and the zooming times.
According to an aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the image scaling method of any of the above.
According to an aspect of the present disclosure, there is provided an electronic device including:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform any of the image scaling methods described above via execution of the executable instructions.
The image zooming method comprises the steps of detecting a first control operation of a first control medium acting on a target image and a second control operation of a second control medium acting on a second touch display screen; then, based on a first operation track of the first control operation and a second operation track of the second control operation, determining a scaling direction and a scaling multiple of the target image; finally, controlling the zooming of the target image according to the zooming direction and the zooming multiple; on one hand, the zooming direction and the zooming multiple of the target image are determined through a first operation track based on the first control operation and a second operation track based on the second control operation; finally, the target image is controlled to be zoomed according to the zooming direction and the zooming multiple, the problem that the accuracy of the zooming result of the image to be zoomed is low due to the fact that the zooming direction and the zooming range cannot be considered at the same time in the prior art is solved, and the accuracy of the zooming result of the area to be zoomed is improved; on the other hand, the method and the device control the zooming of the target image according to the zooming direction and the zooming multiple, solve the problems that in the prior art, the zooming direction needs to be adjusted first, and then the zooming range is adjusted along the zooming direction, so that the whole zooming process is complicated, time is consumed, the process of zooming the region to be zoomed is simplified, and the zooming efficiency of the region to be zoomed is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 schematically illustrates a flow chart of an image scaling method according to an example embodiment of the present disclosure.
Fig. 2 schematically illustrates a flowchart of a method for determining the zoom direction of the target image based on a first moving direction of the first operation trajectory and a second moving direction of the second operation trajectory according to an exemplary embodiment of the present disclosure.
Fig. 3 schematically illustrates an application scene example diagram of an image scaling method according to an example embodiment of the present disclosure.
Fig. 4 schematically illustrates a flowchart of another method for determining the zoom direction of the target image based on a first moving direction of the first operation trajectory and a second moving direction of the second operation trajectory according to an example embodiment of the present disclosure.
Fig. 5 schematically illustrates a block diagram of an image scaling apparatus according to an example embodiment of the present disclosure.
Fig. 6 schematically illustrates an electronic device for implementing the image scaling method according to an exemplary embodiment of the present disclosure.
Fig. 7 schematically illustrates a computer-readable storage medium for implementing the above-described image scaling method according to an example embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the invention.
Furthermore, the drawings are merely schematic illustrations of the invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
The example embodiment first provides an image zooming method, which is applied to a device terminal having a first touch display screen and a second touch display screen, and can be operated in the device terminal; of course, those skilled in the art may also operate the method of the present invention on other platforms as needed, and this is not particularly limited in this exemplary embodiment. Referring to fig. 1, the image scaling method may include the steps of:
and S110, displaying at least part of target images in the first touch display screen.
And S120, detecting a first control operation of a first control medium acting on the target image and a second control operation of a second control medium acting on the second touch display screen.
Step S130, determining the zooming direction and the zooming multiple of the target image based on the first operation track of the first control operation and the second operation track of the second control operation.
And S140, controlling the zooming of the target image according to the zooming direction and the zooming multiple.
In the image scaling method, on one hand, the scaling direction and the scaling multiple of the target image are determined through a first operation track based on the first control operation and a second operation track based on the second control operation; finally, the target image is controlled to be zoomed according to the zooming direction and the zooming multiple, the problem that the accuracy of the zooming result of the image to be zoomed is low due to the fact that the zooming direction and the zooming range cannot be considered at the same time in the prior art is solved, and the accuracy of the zooming result of the area to be zoomed is improved; on the other hand, the method and the device control the zooming of the target image according to the zooming direction and the zooming multiple, solve the problems that in the prior art, the zooming direction needs to be adjusted first, and then the zooming range is adjusted along the zooming direction, so that the whole zooming process is complicated, time is consumed, the process of zooming the region to be zoomed is simplified, and the zooming efficiency of the region to be zoomed is improved.
Hereinafter, each step in the above-described image scaling method in the present exemplary embodiment will be explained and explained in detail with reference to the drawings.
In step S110, a target image is at least partially displayed on the first touch screen.
In the present exemplary embodiment, the first touch display screen may be a main display screen, for example, may be a front display screen of a mobile phone; the target image can be displayed on the front display screen of the mobile phone, or partially displayed, for example, the target image can be displayed in a split screen manner; further, the target image may be, for example, an image of a virtual character, an actual photograph, or the like, and this example is not particularly limited thereto. Further, the present disclosure takes the target image as the virtual character image for example; the scaling principle of other images is similar, so that the description is omitted.
In step S120, a first control operation of a first manipulation medium acting on the target image and a second control operation of a second manipulation medium acting on the second touch display screen are detected.
In the present exemplary embodiment, the first control operation and the second control operation may include a contact control operation, such as a slide operation; the first control medium may include a thumb of the user, the second control medium may include an index finger of the user, and may also include other objects that can perform a sliding operation on the user interface of the device terminal, such as a stylus, and the like, which is not limited in this example. Further, a first sliding operation of a first control medium acting on the area to be zoomed can be detected through a touch device; the second control medium acts on the second sliding operation of the second touch display screen; the touch device may be a screen of a terminal device, or may be an external device, and the like, which is not limited in this example.
Further, in the present exemplary embodiment, the above-described first control operation and second control operation may further include a non-contact control operation; the non-contact control operation may include a relative movement operation of the manipulation medium, and may also include other operations, for example, other compatible suitable interaction operations may be included, and the present example is not particularly limited thereto; the first control medium and the second control medium may include fingers, or may include other objects, such as living goods, which is not limited in this example. Further, a first control operation of the first manipulation medium within a first direction preset distance range of the target image may be detected; and detecting a second control operation of the second control medium in a second direction preset distance range of the second touch display screen. Specifically, a first control operation of the first control medium in a non-contact operation sensing area of the target image can be detected through a sensing device; and detecting a second control operation of the second control medium in a non-contact operation sensing area of the second touch display screen through a sensing device. The sensing device may be a sensor, or a camera on the device terminal, and the like, which is not limited in this example.
In step S130, a zoom direction and a zoom magnification of the target image are determined based on a first operation trajectory of the first control operation and a second operation trajectory of the second control operation.
In the present exemplary embodiment, first, the zoom direction of the target image is determined based on the first movement direction of the first operation trajectory and the second movement direction of the second operation trajectory; then, the zoom factor of the target image is determined based on a first movement distance of the first operation trajectory and a second movement distance of the second operation trajectory.
Specifically, referring to fig. 2, determining the zooming direction of the target image based on the first moving direction of the first operation track and the second moving direction of the second operation track may include steps S210 to S230, which will be described in detail below.
In step S210, a first initial operation point and a first final operation point of the first operation track are obtained, and a first initial touch point and a first final touch point of the first operation track, and a second initial touch point and a second final touch point of the second operation track are obtained.
In the exemplary embodiment, a coordinate origin is determined according to a central point of the target image, and a plane coordinate axis of the target image is established according to the coordinate origin and the long side and the wide side of the first touch display screen; then, acquiring a first initial touch point of the first operation track according to a first initial position of the first operation track in the plane coordinate axis, and acquiring a second initial touch point of the second operation track according to a second initial position of the second operation track in the plane coordinate axis; and finally, acquiring a first final touch point of the first operation track according to a first termination position of the first operation track in the plane coordinate axis, and acquiring a second final touch point of the second operation track according to a second termination position of the second operation track in the plane coordinate axis.
For example, the coordinate origin may be determined according to the center points of the long side and the wide side of the target image in the first touch display screen; secondly, a plane coordinate axis of the target image can be established according to the coordinate origin and the long side and the wide side of the first touch display screen; wherein the plane coordinate axes may include an X axis and a Y axis; the X axis is parallel to the long edge of the first touch display screen; the Y axis is parallel to a broadside of the first touch display screen; then, a first initial touch point of the first operation track is obtained according to a first initial position of the first operation track in the plane coordinate axis, which may be (a), for example0，B0) (ii) a Then, a first final touch point of the first operation track is obtained according to the first end position of the first operation track in the plane coordinate axis, which may be (a), for example1，B1) (ii) a Obtaining a second initial touch point of the second operation track according to a second starting position of the second operation track in the plane coordinate axis, which may be (a'0，B'0) (ii) a And obtaining a second final touch point of the second operation track according to a second ending position of the second operation track in the plane coordinate axis, wherein the second final touch point of the second operation track can be (A'1，B'1)。
In step S220, the first moving direction is determined according to the first initial touch point and the first final touch point, and the second moving direction is determined according to the second initial touch point and the second final touch point.
In the present exemplary embodiment, when the first initial touch point (a) is obtained0，B0) And a first final touch point (A)1，B1) (ii) a Second initial touch Point (A'0，B'0) And a second final touch point (A'1，B'1) The first movement direction may then be, for example, a vector (a)1-A0，B1-B0) (ii) a The second movement direction may be, for example, a vector (A'1-A'0，B'1-B'0) Wherein the first mobile partyIn the same direction as the second direction of movement.
In step S230, the zooming direction of the target image on a first plane is determined according to the first moving direction and the second moving direction, where the first plane is a plane where the first touch display screen is located.
Further, referring to fig. 4, determining the zooming direction of the target image based on the first moving direction of the first operation track and the second moving direction of the second operation track may further include steps S410 to S430, which will be described in detail below.
In step S410, a first initial operation point and a first final operation point of the first operation trajectory, and a second initial operation point and a second final operation point of the second operation trajectory are acquired.
In the exemplary embodiment, a coordinate origin is determined according to a central point of the target image, and a spatial coordinate axis of the target image is established according to the coordinate origin, a long side and a wide side of the first touch display screen, and a direction perpendicular to the first touch display screen; then, acquiring a first initial touch point of the first operation track according to a first initial position of the first operation track in the space coordinate axis, and acquiring a second initial touch point of the second operation track according to a second initial position of the second operation track in the space coordinate axis; and finally, acquiring a first final operation point of the first operation track according to a first termination position of the first operation track in the space coordinate axis, and acquiring a second final operation point of the first operation track according to a second termination position of the second operation track in the plane coordinate axis.
For example, the coordinate origin may be determined according to the center points of the long side and the wide side of the target image in the first touch display screen; secondly, establishing an X axis and a Y axis of a space coordinate of the target image according to the coordinate origin and the long edge and the wide edge of the first touch display screen; establishing a Z axis of a space coordinate according to a direction perpendicular to the first touch display screen; then, according to the first initial position of the first operation track in the space coordinate axis, acquiring the first initial position of the first operation trackThe initial touch point may be, for example, (X)0，Y00); then, a first final operation point of the first operation track is obtained according to the first end position of the first operation track in the spatial coordinate axis, which may be (X), for example1，Y1，Z1) (ii) a Obtaining a second initial touch point of the second operation track according to a second starting position of the second operation track in the plane coordinate axis, which may be (X'0，Y'00); and obtaining a second final operation point of the second operation track according to a second ending position of the second operation track in the plane coordinate axis, wherein the second final operation point of the second operation track can be (X'1，Y'1，Z'1)。
In step S420, the first moving direction is determined according to the first initial operating point and the first final operating point, and the second moving direction is determined according to the second initial operating point and the second final operating point.
In the present exemplary embodiment, when the first initial touch point (X) is obtained0，Y00) and a first final touch point (X)1，Y1，Z1) (ii) a Second initial touch Point (X'0，Y'00) and a second final touch point (X'1，Y'1，Z'1) The first movement direction may then be, for example, a vector (X)1-X0，Y1-Y0，Z1) (ii) a The second movement direction may be, for example, a vector (X'1-X'0，Y'1-Y'0，Z'1) Wherein the first and second directions of movement are opposite.
In step S430, the zooming direction of the target image on a second plane is determined according to the first moving direction and a second moving direction, wherein the second plane is a plane perpendicular to the first touch display screen.
It should be added here that, since the first control operation and the second control operation may include a contact operation and may also include a non-contact operation; therefore, when the first control operation and the second control operation are contact operations, it may correspond to the embodiment shown in fig. 2; when the first control operation and the second control operation are the noncontact operations, it may correspond to the embodiment shown in fig. 4. By the method, the target image is zoomed in the preset direction, so that the zooming direction can be accurately controlled no matter the target image is zoomed in space or zoomed in a plane, and the zooming time is saved.
In step S140, the scaling of the target image is controlled according to the scaling direction and the scaling factor.
In the present exemplary embodiment, the scaling factor may be based on the vector (a) of the first moving direction described above1-A0，B1-B0)、(X1-X0，Y1-Y0，Z1) And a second moving direction vector (A'1-A'0，B'1-B'0)、(X'1-X'0，Y'1-Y'0，Z'1) Obtaining the die; after the zooming direction and the zooming times are obtained, the zooming of the target image can be controlled; by the mode, feedback can be simultaneously carried out on the X/Y/Z three axes through pinching and putting between two fingers, and stereoscopic zooming of the image to be zoomed is achieved. The scaling of the direction and the size can be simultaneously carried out, and the operation efficiency is improved.
Further, in the present exemplary embodiment, in order to facilitate scaling of the local area of the target image, the image scaling method may further include: determining a preset area of the target image according to the initial touch point position of the first control operation; then, the zoom direction and the zoom multiple of the preset region of the target image are determined based on a first operation trajectory of the first control operation and a second operation trajectory of the second control operation. For example, when the face of the virtual character needs to be scaled laterally, the nose can be used as the initial touch point of the first control operation; taking the range in the face area of the initial touch point as a preset area; then, according to actual needs, based on a first operation track of the first control operation and a second operation track of the second control operation, determining a scaling direction and a scaling multiple of the preset area of the target image.
Further, in this exemplary embodiment, in order to view the overall effect of the zoomed target image, the target image may be moved or rotated, which may specifically include: detecting a third sliding operation of the first control medium on the target image; and controlling the movement or rotation of the target image according to the third sliding operation. For example, after zooming is completed, the zoomed target image can be moved or rotated to check whether the desired effect is achieved; if the preset effect is not achieved, zooming again can be carried out. By the method, the accuracy of the scaling result is further improved.
The disclosure also provides an image zooming device applied to a device terminal with a first touch display screen and a second touch display screen. Referring to fig. 5, the image scaling apparatus may include a display module 510, a first detection device 520, a first determination module 530, and a first control module 540. Wherein:
the display module 510 may be configured to display at least a portion of the target image on the first touch screen display.
The first detection device 520 may be configured to detect a first control operation of the first manipulation medium acting on the target image and a second control operation of the second manipulation medium acting on the second touch display screen.
The first determining module 530 may be configured to determine a zoom direction and a zoom multiple of the target image based on a first operation trajectory of the first control operation and a second operation trajectory of the second control operation.
The first control module 540 may be configured to control the scaling of the target image according to the scaling direction and the scaling multiple.
In an example embodiment of the present disclosure, determining the zoom direction and the zoom multiple of the target image based on the first operation trajectory of the first control operation and the second operation trajectory of the second control operation includes: determining the zooming direction of the target image based on a first moving direction of the first operation track and a second moving direction of the second operation track; determining the zoom factor of the target image based on a first movement distance of the first operation track and a second movement distance of the second operation track.
In an example embodiment of the present disclosure, determining the zoom direction of the target image based on the first moving direction of the first manipulation trajectory and the second moving direction of the second manipulation trajectory includes: acquiring a first initial touch point and a first final touch point of a first operation track, and a second initial touch point and a second final touch point of a second operation track; determining the first moving direction according to the first initial touch point and the first final touch point, and determining the second moving direction according to the second initial touch point and the second final touch point; and determining the zooming direction of the target image on a first plane according to the first moving direction and the second moving direction, wherein the first plane is a plane where the first touch display screen is located.
In an example embodiment of the present disclosure, determining the zoom direction of the target image based on the first moving direction of the first manipulation trajectory and the second moving direction of the second manipulation trajectory includes: acquiring a first initial operation point and a first final operation point of a first operation track, and a second initial operation point and a second final operation point of a second operation track; determining the first moving direction according to the first initial operating point and the first final operating point, and determining the second moving direction according to the second initial operating point and the second final operating point; and determining the zooming direction of the target image on a second plane according to the first moving direction and the second moving direction, wherein the second plane is a plane perpendicular to the first touch display screen.
In an example embodiment of the present disclosure, the image scaling apparatus may further include:
the second determining module may be configured to determine a preset area of the target image according to the start touch point position of the first control operation.
In an example embodiment of the present disclosure, determining the zoom direction and the zoom multiple of the target image based on the first operation trajectory of the first control operation and the second operation trajectory of the second control operation includes: determining the zooming direction and the zooming multiple of the preset area of the target image based on a first operation track of the first control operation and a second operation track of the second control operation.
In an example embodiment of the present disclosure, the obtaining a first initial touch point and a first final touch point of a first operation trajectory, and a second initial touch point and a second final touch point of a second operation trajectory includes: determining a coordinate origin according to the central point of the target image, and establishing a plane coordinate axis of the target image according to the coordinate origin and the long edge and the wide edge of the first touch display screen; acquiring a first initial touch point of the first operation track according to a first initial position of the first operation track in the plane coordinate axis; acquiring a first final touch point of the first operation track according to a first termination position of the first operation track in the plane coordinate axis; acquiring a second initial touch point of the second operation track according to a second initial position of the second operation track in the plane coordinate axis; and acquiring a second final touch point of the first operation track according to a second termination position of the second operation track in the plane coordinate axis.
In an example embodiment of the present disclosure, the obtaining a first initial operation point and a first final operation point of a first operation trajectory, and a second initial touch point and a second final operation point of a second operation trajectory includes: determining a coordinate origin according to the central point of the target image, and establishing a space coordinate axis of the target image according to the coordinate origin, the long side and the wide side of the first touch display screen and the direction perpendicular to the first touch display screen; acquiring the first initial touch point of the first operation track according to a first initial position of the first operation track in the space coordinate axis; acquiring the first final operation point of the first operation track according to a first termination position of the first operation track in the space coordinate axis; acquiring a second initial touch point of the second operation track according to a second initial position of the second operation track in the space coordinate axis; and acquiring a second final operation point of the second operation track according to a second termination position of the second operation track in the space coordinate axis.
In an example embodiment of the present disclosure, the image scaling apparatus may further include:
second detection means operable to detect a third sliding operation of the first manipulation medium on the target image;
and the second control module can be used for controlling the movement or rotation of the target image according to the third sliding operation.
The specific details of each module in the image scaling apparatus have been described in detail in the corresponding image scaling method, and therefore are not described herein again.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the invention. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Moreover, although the steps of the methods of the present invention are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiment of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to make a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) execute the method according to the embodiment of the present invention.
In an exemplary embodiment of the present invention, there is also provided an electronic device capable of implementing the above method.
As will be appreciated by one skilled in the art, aspects of the present invention may be embodied as a system, method or program product. Thus, various aspects of the invention may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.
An electronic device 600 according to this embodiment of the invention is described below with reference to fig. 6. The electronic device 600 shown in fig. 6 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.
As shown in fig. 6, the electronic device 600 is embodied in the form of a general purpose computing device. The components of the electronic device 600 may include, but are not limited to: the at least one processing unit 610, the at least one memory unit 620, and a bus 630 that couples the various system components including the memory unit 620 and the processing unit 610.
Wherein the storage unit stores program code that is executable by the processing unit 610 to cause the processing unit 610 to perform steps according to various exemplary embodiments of the present invention as described in the above section "exemplary methods" of the present specification. For example, the processing unit 610 may perform step S110 as shown in fig. 1: displaying a target image in the first touch display screen at least partially; step S120: detecting a first control operation of a first control medium acting on the target image and a second control operation of a second control medium acting on the second touch display screen; step S130: determining a zooming direction and a zooming multiple of the target image based on a first operation track of the first control operation and a second operation track of the second control operation; step S140: and controlling the zooming of the target image according to the zooming direction and the zooming times.
The storage unit 620 may include readable media in the form of volatile memory units, such as a random access memory unit (RAM)6201 and/or a cache memory unit 6202, and may further include a read-only memory unit (ROM) 6203.
The memory unit 620 may also include a program/utility 6204 having a set (at least one) of program modules 6205, such program modules 6205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.
Bus 630 may be one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.
The electronic device 600 may also communicate with one or more external devices 700 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 600, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 600 to communicate with one or more other computing devices. Such communication may occur via an input/output (I/O) interface 650. Also, the electronic device 600 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet) via the network adapter 660. As shown, the network adapter 660 communicates with the other modules of the electronic device 600 over the bus 630. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 600, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiment of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to make a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) execute the method according to the embodiment of the present invention.
In an exemplary embodiment of the present invention, there is also provided a computer-readable storage medium having stored thereon a program product capable of implementing the above-described method of the present specification. In some possible embodiments, aspects of the invention may also be implemented in the form of a program product comprising program code means for causing a terminal device to carry out the steps according to various exemplary embodiments of the invention described in the above section "exemplary methods" of the present description, when said program product is run on the terminal device.
Referring to fig. 7, a program product 710 for implementing the above method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
A computer readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).
Furthermore, the above-described figures are merely schematic illustrations of processes involved in methods according to exemplary embodiments of the invention, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims (10)

1. An image zooming method is characterized in that the method is applied to a device terminal with a first touch display screen and a second touch display screen; the image scaling method includes:
displaying a target image in the first touch display screen at least partially;
detecting a first control operation of a first control medium acting on the target image and a second control operation of a second control medium acting on the second touch display screen;
determining a zoom direction of the target image based on a first moving direction of a first operation trajectory of the first control operation and a second moving direction of a second operation trajectory of the second control operation;
determining a zoom factor of the target image based on a first movement distance of the first operation track and a second movement distance of the second operation track;
controlling the zooming of the target image according to the zooming direction and the zooming times;
wherein determining the zooming direction of the target image based on the first moving direction of the first operation track and the second moving direction of the second operation track comprises:
acquiring a first initial operation point and a first final operation point of a first operation track, and a second initial operation point and a second final operation point of a second operation track;
determining the first moving direction according to the first initial operating point and the first final operating point, and determining the second moving direction according to the second initial operating point and the second final operating point;
and determining the zooming direction of the target image on a second plane according to the first moving direction and the second moving direction, wherein the second plane is a plane perpendicular to the first touch display screen.
2. The image scaling method according to claim 1, wherein determining the scaling direction of the target image based on a first moving direction of the first operation trajectory and a second moving direction of the second operation trajectory comprises:
acquiring a first initial touch point and a first final touch point of a first operation track, and a second initial touch point and a second final touch point of a second operation track;
determining the first moving direction according to the first initial touch point and the first final touch point, and determining the second moving direction according to the second initial touch point and the second final touch point;
and determining the zooming direction of the target image on a first plane according to the first moving direction and the second moving direction, wherein the first plane is a plane where the first touch display screen is located.
3. The image scaling method of claim 1, further comprising:
and determining a preset area of the target image according to the initial touch point position of the first control operation.
4. The image scaling method according to claim 3, wherein determining the scaling direction and the scaling multiple of the target image based on a first operation trajectory of the first control operation and a second operation trajectory of the second control operation comprises:
determining the zooming direction and the zooming multiple of the preset area of the target image based on a first operation track of the first control operation and a second operation track of the second control operation.
5. The image zooming method of claim 2, wherein the obtaining of the first initial touch point and the first final touch point of the first operation track, and the second initial touch point and the second final touch point of the second operation track comprises:
determining a coordinate origin according to the central point of the target image, and establishing a plane coordinate axis of the target image according to the coordinate origin and the long edge and the wide edge of the first touch display screen;
acquiring a first initial touch point of the first operation track according to a first initial position of the first operation track in the plane coordinate axis;
acquiring a first final touch point of the first operation track according to a first termination position of the first operation track in the plane coordinate axis;
acquiring a second initial touch point of the second operation track according to a second initial position of the second operation track in the plane coordinate axis;
and acquiring a second final touch point of the second operation track according to a second termination position of the second operation track in the plane coordinate axis.
6. The image zooming method of claim 1, wherein the obtaining of the first initial operating point and the first final operating point of the first operating track, and the second initial touch point and the second final operating point of the second operating track comprises:
determining a coordinate origin according to the central point of the target image, and establishing a space coordinate axis of the target image according to the coordinate origin, the long side and the wide side of the first touch display screen and the direction perpendicular to the first touch display screen;
acquiring the first initial touch point of the first operation track according to a first initial position of the first operation track in the space coordinate axis;
acquiring the first final operation point of the first operation track according to a first termination position of the first operation track in the space coordinate axis;
acquiring a second initial touch point of the second operation track according to a second initial position of the second operation track in the space coordinate axis;
and acquiring a second final operation point of the second operation track according to a second termination position of the second operation track in the space coordinate axis.
7. The image scaling method of claim 1, further comprising:
detecting a third sliding operation of the first control medium on the target image;
and controlling the movement or rotation of the target image according to the third sliding operation.
8. An image zooming device is characterized in that the device is applied to a device terminal with a first touch display screen and a second touch display screen; the image scaling apparatus includes:
the display module is used for displaying at least part of a target image in the first touch display screen;
the first detection device is used for detecting a first control operation of a first control medium acting on the target image and a second control operation of a second control medium acting on the second touch display screen;
a first determining module, configured to determine a scaling direction of the target image based on a first moving direction of a first operation trajectory of the first control operation and a second moving direction of a second operation trajectory of the second control operation;
determining a zoom factor of the target image based on a first movement distance of the first operation track and a second movement distance of the second operation track;
wherein determining the zooming direction of the target image based on the first moving direction of the first operation track and the second moving direction of the second operation track comprises:
acquiring a first initial operation point and a first final operation point of a first operation track, and a second initial operation point and a second final operation point of a second operation track;
determining the first moving direction according to the first initial operating point and the first final operating point, and determining the second moving direction according to the second initial operating point and the second final operating point;
determining the zooming direction of the target image on a second plane according to the first moving direction and a second moving direction, wherein the second plane is a plane perpendicular to the first touch display screen;
and the first control module is used for controlling the zooming of the target image according to the zooming direction and the zooming times.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the image scaling method according to any one of claims 1 to 7.
10. An electronic device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the image scaling method of any of claims 1-7 via execution of the executable instructions.
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