WO2020000830A1 - 图像处理方法及图像处理装置 - Google Patents

图像处理方法及图像处理装置 Download PDF

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Publication number
WO2020000830A1
WO2020000830A1 PCT/CN2018/113279 CN2018113279W WO2020000830A1 WO 2020000830 A1 WO2020000830 A1 WO 2020000830A1 CN 2018113279 W CN2018113279 W CN 2018113279W WO 2020000830 A1 WO2020000830 A1 WO 2020000830A1
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area
moving
image processing
movable
randomly
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French (fr)
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田凡
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/007—Use of pixel shift techniques, e.g. by mechanical shift of the physical pixels or by optical shift of the perceived pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0257—Reduction of after-image effects
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to an image processing method and an image processing device.
  • Flat panel displays are widely used due to their thin body and low power consumption.
  • Existing flat panel displays generally include liquid crystal (liquid crystal). display, LCD) displays, and organic light emitting diodes, OLED) display.
  • liquid crystal liquid crystal
  • LCD liquid crystal
  • OLED organic light emitting diodes
  • the self-luminous electroluminescent layer in an OLED display is a thin film of organic compounds.
  • the lifetime of these organic materials is limited. Over time, they will slowly degrade and age, and the brightness and accuracy of the light will be greatly reduced.
  • this part of the OLED display will be more severely depleted than other light-emitting pixels, and the luminous efficiency will decay more quickly, resulting in residual on the display after screen switching Previous image.
  • the self-luminous electroluminescent layer in an OLED display is a thin film of organic compounds.
  • the lifetime of these organic materials is limited. Over time, they will slowly degrade and age, and the brightness and accuracy of the light will be greatly reduced.
  • this part of the OLED display will be more severely depleted than other light-emitting pixels, and the luminous efficiency will decay more quickly, resulting in residual on the display after screen switching Previous image.
  • an image processing method including:
  • Step S1 selecting a moving area where a still image area is displayed in the effective display area
  • Step S2. Select a movable area including and larger than the moving area in the effective display area;
  • Step S4 Make the moving area move according to the generated moving track within the movable area
  • steps S2 and S4 also include step S3, and randomly generate a movement trajectory according to prescribed restrictions.
  • Step S3 includes:
  • Step S301 Determine the relative position of the moving area and the movable area
  • Step S302 Randomly generate a moving direction according to a prescribed limit
  • Step S303 Randomly generate a moving distance according to a prescribed limit
  • Step S304 Generate a random movement trajectory.
  • the prescribed limitation of randomly generating the moving direction includes: if the moving area is located at the edge of the movable area, its next random moving direction does not include the direction leaving the movable area.
  • the specified limitation of the randomly generated moving distance includes: limiting a maximum moving distance to N pixel units, where N is a natural number, and each random moving distance is generated between 1 to N pixel units.
  • An embodiment of the present disclosure further provides an image processing method, including:
  • Step S1 selecting a moving area where a still image area is displayed in the effective display area
  • Step S2. Select a movable area including and larger than the moving area in the effective display area;
  • Step S4 Make the moving area move according to the generated moving track in the movable area.
  • step S2 and step S4 further include step S3, and randomly generate a movement trajectory according to a prescribed limit.
  • Step S3 includes:
  • Step S301 Determine the relative position of the moving area and the movable area
  • Step S302 Randomly generate a moving direction according to a prescribed limit
  • Step S303 Randomly generate a moving distance according to a prescribed limit
  • Step S304 Generate a random movement trajectory.
  • the prescribed limitation of randomly generating the moving direction includes: if the moving area is located at the edge of the movable area, its next random moving direction does not include the direction leaving the movable area.
  • the specified limitation of the randomly generated moving distance includes: limiting a maximum moving distance to N pixel units, where N is a natural number, and each random moving distance is generated between 1 to N pixel units.
  • An embodiment of the present disclosure further provides an image processing apparatus, including:
  • a moving area selection module for selecting a moving area for displaying a still image area in an effective display area
  • Movable area selection module for selecting a movable area that is larger than the moving area within the effective display area
  • the moving module is used to make the moving area move according to the generated moving track within the movable area.
  • trajectory module which is used to randomly generate a movement trajectory according to a prescribed limit.
  • the trajectory module includes:
  • a judging module for judging the relative position of the moving area and the movable area
  • the direction generating module is used to randomly generate the moving direction according to the prescribed restrictions
  • the distance generation module is used to randomly generate a moving distance according to a prescribed limit
  • the trajectory generation module is used to generate a random movement trajectory.
  • the prescribed limitation of randomly generated moving directions includes: if the moving area is located at the edge of the movable area, its next random moving direction does not include the direction leaving the movable area.
  • the specified limitation of the randomly generated moving distance includes: limiting a maximum moving distance to N pixel units, N being a natural number, and each random moving distance to be generated between 1 to N pixel units.
  • the present disclosure provides an image processing method and an image processing device.
  • the display avoids the afterimage of the static image displayed on the display for a long time, thereby extending the life of the display.
  • FIG. 1 is a flowchart of a preferred embodiment of an image processing method according to the disclosure
  • FIG. 2 is a schematic diagram of an image processing method according to a preferred embodiment of the present disclosure
  • step S3 is a flowchart of step S3 in a preferred embodiment of an image processing method according to the disclosure
  • FIG. 4 is a schematic diagram of implementing step S3 in a preferred embodiment of the image processing method of the present disclosure
  • FIG. 5 is a schematic diagram of step S3 in a preferred embodiment of the image processing method of the present disclosure.
  • FIG. 6 is a schematic diagram of step S3 in a preferred embodiment of the image processing method of the present disclosure.
  • the image processing method according to the embodiment of the present disclosure mainly includes:
  • Step S1 selecting a moving area where a still image area is displayed in the effective display area
  • a moving area for displaying the still image area is divided according to the shape and size of the static image area in the effective display area of the panel.
  • the displayed still image moves with the moving area.
  • Step S2. Select a movable area including and larger than the moving area in the effective display area;
  • a movable area in which the movable area moves is selected.
  • the movable area is spatially larger than the movable area, and the movable area is restricted to move in random directions and distances according to regulations.
  • Step S4 Make the moving area move according to the generated moving track in the movable area.
  • a fixed or random moving trajectory can be generated in advance, and the moving area can be controlled to move according to the trajectory within the movable area.
  • the moving trajectory can be randomly generated through step S3.
  • a light emitting diode (OLED) display has a mobile area 2 selected in the active display area 1.
  • the mobile area 2 is used as a static image area for a static image area corresponding to a display monitor or a display image.
  • the movement area 2 performs random movement according to a predetermined limit.
  • a movable area 3 including and larger than the moving area 2 is selected.
  • the movable area 3 is used to limit the moving range of the moving area 2 so that the moving area 2 moves within its area and does not exceed its range.
  • the moving mode of the moving area 2 can be a random movement that does not exceed the range of the movable area 3, and a moving direction and moving distance of the moving area 2 can be randomly generated according to preset regulations, so that the moving area 2 moves according to the moving direction and distance. , And does not exceed the range of movable area 3.
  • Step S3 randomly generates a movement trajectory according to a prescribed limit, which may specifically include:
  • Step S301 Determine the relative position of the moving area and the movable area
  • the movable area needs to be included in space and larger than the moving area, and the wrong trajectory can be avoided by judging the relative position.
  • Step S302 Randomly generate a moving direction according to a prescribed limit
  • the moving direction of the moving area relative to the movable area can be generated according to a preset rule, and the moving area is prevented from leaving the movable area.
  • Step S303 Randomly generate a moving distance according to a prescribed limit
  • the moving distance of the moving area relative to the movable area can be generated according to a preset rule, and the moving area is prevented from leaving the movable area.
  • Step S304 Generate a random movement trajectory
  • the movable region 3 needs to be spatially included and larger than the movable region 2
  • the specific size can be determined by the resolution of the display.
  • the direction arrow in the figure indicates the random movement direction of the moving area 2.
  • N the moving distance is limited by the maximum moving distance.
  • the image processing method performs random movement processing on a display or a static image area in a display image according to a prescribed limit to prevent a residual image from appearing on the display, thereby extending the service life of the display.
  • the embodiments of the present disclosure also provide an image processing device that can be used to implement the image processing method of the embodiments of the present disclosure.
  • the method mainly includes: a moving area selection module for selecting and displaying a static image in an effective display area.
  • the moving area of the area; the movable area selection module is used to select a movable area that is larger than the moving area in the effective display area; the moving module is used to make the moving area follow the generated movement track within the movable area Make a move.
  • It may also include a trajectory module for randomly generating a movement trajectory according to a prescribed limit.
  • the display or the static image area of the displayed image is selected as the moving area, so that it moves in a selected random direction and distance within a selected movable area including and larger than the moving area.
  • the trajectory module may specifically include: a judgment module for judging the relative position of a moving area and a movable area; a direction generation module for randomly generating a moving direction according to a prescribed limit; a distance generation module for randomly generating a moving distance according to a prescribed limit ; Trajectory generation module, used to generate random movement trajectories.
  • the image processing method and the image processing apparatus of the embodiments of the present disclosure can avoid the afterimage of the display, thereby extending the service life of the display.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

本揭示涉及一种图像处理方法及图像处理装置。图像处理方法包括：步骤S1、在有效显示区内选定显示静态图像区域的移动区域；步骤S2、在有效显示区内选定一包含且大于移动区域的可移动区域；步骤S4、使移动区域在可移动区域内按生成的移动轨迹进行移动。在步骤S2与S4之间还可以包括步骤S3、按规定限制随机生成移动轨迹。

Description

图像处理方法及图像处理装置 技术领域
本揭示涉及显示技术领域，尤其涉及一种图像处理方法及图像处理装置。
 背景技术
平板显示器由于机身薄，耗电量小等优点，被广泛应用，现有的平板显示器一般包括液晶（liquid crystal display, LCD）显示器、及有机发光二极管（organic light emitting diode, OLED）显示器。
现有各种显示器显示时，如果所显示图像包含静态图像区域，由于器件老化等原因，长时间工作后可能出现残像现象。例如，OLED显示器中的自发光电致发光层是一层有机化合物薄膜，这些有机材料的寿命有限，随着时间的推移，会慢慢降解老化，发光亮度和准度都会大打折扣。当长时间在显示器有效显示区的同一区域显示静态图像时，会使OLED显示器的这一部分发光像素受到比其它发光像素更严重的耗损，发光效率衰减得更快，导致画面切换后在显示器上残留之前的图像。
 技术问题
现有各种显示器显示时，如果所显示图像包含静态图像区域，由于器件老化等原因，长时间工作后可能出现残像现象。例如，OLED显示器中的自发光电致发光层是一层有机化合物薄膜，这些有机材料的寿命有限，随着时间的推移，会慢慢降解老化，发光亮度和准度都会大打折扣。当长时间在显示器有效显示区的同一区域显示静态图像时，会使OLED显示器的这一部分发光像素受到比其它发光像素更严重的耗损，发光效率衰减得更快，导致画面切换后在显示器上残留之前的图像。
 技术解决方案
为解决上述技术问题，本揭示提供一种图像处理方法，包括：
步骤S1、在有效显示区内选定显示静态图像区域的移动区域；
步骤S2、在有效显示区内选定一包含且大于移动区域的可移动区域；
步骤S4、使移动区域在可移动区域内按生成的移动轨迹进行移动；
其中在步骤S2与S4之间还包括步骤S3、按规定限制随机生成移动轨迹，步骤S3包括：
步骤S301、判断移动区域与可移动区域相对位置；
步骤S302、按规定限制随机产生移动方向；
步骤S303、按规定限制随机产生移动距离；
步骤S304、随机移动轨迹生成。
其中，步骤S302中，随机产生移动方向的规定限制包括：若移动区域位于可移动区域边缘，则其下一随机移动方向不包括离开可移动区域的方向。
其中，步骤S303中，随机产生移动距离的规定限制包括：限定一最大移动距离为N个像素单位，N为自然数，每次随机移动距离在1~N个像素单位之间产生。
本揭示的实施例还提供了一种图像处理方法，包括：
步骤S1、在有效显示区内选定显示静态图像区域的移动区域；
步骤S2、在有效显示区内选定一包含且大于移动区域的可移动区域；
步骤S4、使移动区域在可移动区域内按生成的移动轨迹进行移动。
其中，在步骤S2与S4之间还包括步骤S3、按规定限制随机生成移动轨迹。
其中，步骤S3包括：
步骤S301、判断移动区域与可移动区域相对位置；
步骤S302、按规定限制随机产生移动方向；
步骤S303、按规定限制随机产生移动距离；
步骤S304、随机移动轨迹生成。
其中，步骤S302中，随机产生移动方向的规定限制包括：若移动区域位于可移动区域边缘，则其下一随机移动方向不包括离开可移动区域的方向。
其中，步骤S303中，随机产生移动距离的规定限制包括：限定一最大移动距离为N个像素单位，N为自然数，每次随机移动距离在1~N个像素单位之间产生。
本揭示的实施例还提供了一种图像处理装置，包括：
移动区域选定模块，用于在有效显示区内选定显示静态图像区域的移动区域；
可移动区域选定模块，用于在有效显示区内选定一包含且大于移动区域的可移动区域；
移动模块，用于使移动区域在可移动区域内按生成的移动轨迹进行移动。
其中，还包括轨迹模块，用于按规定限制随机生成移动轨迹。
其中，所述轨迹模块包括：
判断模块，用于判断移动区域与可移动区域相对位置；
方向产生模块，用于按规定限制随机产生移动方向；
距离产生模块，用于按规定限制随机产生移动距离；
轨迹生成模块，用于生成随机移动轨迹。
其中，随机产生移动方向的规定限制包括：若移动区域位于可移动区域边缘，则其下一随机移动方向不包括离开可移动区域的方向。
其中，随机产生移动距离的规定限制包括：限定一最大移动距离为N个像素单位，N为自然数，每次随机移动距离在1~N个像素单位之间产生。
 有益效果
相较于现有技术，为解决上述技术问题，本揭示提供图像处理方法及图像处理装置，通过对显示图像进行处理来避免显示器长时间显示静态图像时出现残影，从而延长显示器的使用寿命。
 附图说明
下面结合附图，通过对本揭示的具体实施方式详细描述，将使本揭示的技术方案及其他有益效果显而易见。
图1为本揭示图像处理方法一较佳实施例的流程图；
图2为本揭示图像处理方法一较佳实施例的实施示意图；
图3为本揭示图像处理方法一较佳实施例中步骤S3的流程图；
图4为本揭示图像处理方法一较佳实施例中步骤S3实施示意图；
图5为本揭示图像处理方法一较佳实施例中步骤S3实施示意图；以及
图6为本揭示图像处理方法一较佳实施例中步骤S3实施示意图。
 本发明的最佳实施方式
参见图1，其为本揭示图像处理方法一较佳实施例的流程图，本揭示的实施例的图像处理方法主要包括：
步骤S1、在有效显示区内选定显示静态图像区域的移动区域；
对应于显示器或显示图像的静态图像区域，在面板有效显示区根据静态图像区域的形状和大小划分出用于显示静态图像区域的移动区域，移动区域内所显示图像为静态图像，移动区域内所显示静态图像随移动区域移动。
步骤S2、在有效显示区内选定一包含且大于移动区域的可移动区域；
在面板有效显示区内选定供移动区域在其中移动的可移动区域，可移动区域在空间上包含且大于移动区域，限制移动区域在其中做按规定限制的随机方向与距离的移动。
步骤S4、使移动区域在可移动区域内按生成的移动轨迹进行移动。
可以预先生成固定或随机的移动轨迹，控制移动区域在可移动区域内按轨迹进行移动，移动轨迹可以通过步骤S3随机生成。
参见图2，其为本揭示图像处理方法一较佳实施例的实施示意图。按照本揭示的实施例的图像处理方法，在诸如有机发光二极管（organic light emitting diode, OLED）显示器的有效显示区1内选定一移动区域2，移动区域2作为静态图像区域用于对应显示显示器或显示图像的静态图像区域，图2中方向箭头表示移动区域2的随机移动方向，显示时，移动区域2进行按规定限制的随机移动。在有效显示区1内选定一包含且大于移动区域2的可移动区域3，可移动区域3用于限制移动区域2的移动范围，使移动区域2在其区域内移动，并且不超出其范围；移动区域2的移动方式可以为不超出可移动区域3范围的随机移动，可以按预设规定限制随机产生移动区域2的一移动方向与移动距离，使移动区域2按该移动方向与距离移动，并且不超出可移动区域3范围。
参见图3，其为本揭示图像处理方法一较佳实施例中步骤S3的流程图，通过步骤S3按规定限制随机生成移动轨迹，具体可以包括：
步骤S301、判断移动区域与可移动区域相对位置；
可移动区域在空间上需包含且大于移动区域，通过判断相对位置避免生成错误轨迹。
步骤S302、按规定限制随机产生移动方向；
可以按照预设的规定产生移动区域相对于可移动区域的移动方向，避免移动区域离开可移动区域。
步骤S303、按规定限制随机产生移动距离；
可以按照预设的规定产生移动区域相对于可移动区域的移动距离，避免移动区域离开可移动区域。
步骤S304、随机移动轨迹生成；
通过随机产生每一步的移动距离和移动方向，即可生成随机移动轨迹。
参见图4~6，其为本揭示图像处理方法一较佳实施例中步骤S3实施示意图，按照本揭示实施例的预设的规定限制，可移动区域3在空间上需包含且大于移动区域2，具体大小可以由显示器分辨率决定，图中方向箭头表示移动区域2的随机移动方向。
如图4所示，如果限定一最大移动距离为N个像素单位，则移动距离受最大移动距离限制，每次随机移动距离可以在1~N个像素单位间产生，其中N可由可移动区域3及显示器分辨率决定且N>=1（N为整数），避免移动区域2离开移动区域3。
随机移动方向限制如如图5和图6所示，若移动区域2位于可移动区域3边缘，则其下一随机移动方向不包括离开可移动区域3的方向，通过去除离开可移动区域3的方向，避免移动区域2离开移动区域3。
本揭示的实施例的图像处理方法通过对显示器或显示图像中的静态图像区域进行按规定限制的随机移动处理，避免显示器出现残像，从而延长显示器的使用寿命。相应的，本揭示的实施例还提供了图像处理装置，可以用于实施本揭示的实施例的图像处理方法，主要包括：移动区域选定模块，用于在有效显示区内选定显示静态图像区域的移动区域；可移动区域选定模块，用于在有效显示区内选定一包含且大于移动区域的可移动区域；移动模块，用于使移动区域在可移动区域内按生成的移动轨迹进行移动。还可以包括轨迹模块，用于按规定限制随机生成移动轨迹。
本揭示的实施例选定显示器或显示图像的静态图像区域为移动区域，使其在一选定的包含且大于移动区域的可移动区域中做按规定限制的随机方向与距离的移动。
其中，轨迹模块具体可以包括：判断模块，用于判断移动区域与可移动区域相对位置；方向产生模块，用于按规定限制随机产生移动方向；距离产生模块，用于按规定限制随机产生移动距离；轨迹生成模块，用于生成随机移动轨迹。
综上，本揭示的的实施例图像处理方法及图像处理装置能够避免显示器出现残像，从而延长显示器的使用寿命。
以上所述，对于本领域的普通技术人员来说，可以根据本揭示的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本揭示后附的权利要求的保护范围。

Claims (13)

  1. 一种图像处理方法，包括：
    步骤S1、在有效显示区内选定显示静态图像区域的移动区域；
    步骤S2、在有效显示区内选定一包含且大于移动区域的可移动区域；
    步骤S4、使移动区域在可移动区域内按生成的移动轨迹进行移动；
    其中在步骤S2与S4之间还包括步骤S3、按规定限制随机生成移动轨迹，步骤S3包括：
    步骤S301、判断移动区域与可移动区域相对位置；
    步骤S302、按规定限制随机产生移动方向；
    步骤S303、按规定限制随机产生移动距离；
    步骤S304、随机移动轨迹生成。
  2. 如权利要求1所述的图像处理方法，其中步骤S302中，随机产生移动方向的规定限制包括：若移动区域位于可移动区域边缘，则其下一随机移动方向不包括离开可移动区域的方向。
  3. 如权利要求1所述的图像处理方法，其中步骤S303中，随机产生移动距离的规定限制包括：限定一最大移动距离为N个像素单位，N为自然数，每次随机移动距离在1~N个像素单位之间产生。
  4. 一种图像处理方法，包括：
    步骤S1、在有效显示区内选定显示静态图像区域的移动区域；
    步骤S2、在有效显示区内选定一包含且大于移动区域的可移动区域；
    步骤S4、使移动区域在可移动区域内按生成的移动轨迹进行移动。
  5. 如权利要求4所述的图像处理方法，其中在步骤S2与S4之间还包括步骤S3、按规定限制随机生成移动轨迹。
  6. 如权利要求5所述的图像处理方法，其中步骤S3包括：
    步骤S301、判断移动区域与可移动区域相对位置；
    步骤S302、按规定限制随机产生移动方向；
    步骤S303、按规定限制随机产生移动距离；
    步骤S304、随机移动轨迹生成。
  7. 如权利要求6所述的图像处理方法，其中步骤S302中，随机产生移动方向的规定限制包括：若移动区域位于可移动区域边缘，则其下一随机移动方向不包括离开可移动区域的方向。
  8. 如权利要求6所述的图像处理方法，其中步骤S303中，随机产生移动距离的规定限制包括：限定一最大移动距离为N个像素单位，N为自然数，每次随机移动距离在1~N个像素单位之间产生。
  9. 一种图像处理装置，包括：
    移动区域选定模块，用于在有效显示区内选定显示静态图像区域的移动区域；
    可移动区域选定模块，用于在有效显示区内选定一包含且大于移动区域的可移动区域；
    移动模块，用于使移动区域在可移动区域内按生成的移动轨迹进行移动。
  10. 如权利要求9所述的图像处理装置，还包括轨迹模块，用于按规定限制随机生成移动轨迹。
  11. 如权利要求10所述的图像处理装置，其中所述轨迹模块包括：
    判断模块，用于判断移动区域与可移动区域相对位置；
    方向产生模块，用于按规定限制随机产生移动方向；
    距离产生模块，用于按规定限制随机产生移动距离；
    轨迹生成模块，用于生成随机移动轨迹。
  12. 如权利要求11所述的图像处理装置，其中随机产生移动方向的规定限制包括：若移动区域位于可移动区域边缘，则其下一随机移动方向不包括离开可移动区域的方向。
  13. 如权利要求11所述的图像处理装置，其中随机产生移动距离的规定限制包括：限定一最大移动距离为N个像素单位，N为自然数，每次随机移动距离在1~N个像素单位之间产生。
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