KR101080406B1 - Image playback method and image processing device executing the same - Google Patents

Abstract

The image reproducing method according to the present invention is characterized in that the position is changed and displayed after being enlarged by one step if the position change is not possible at the current magnification when the screen position change instruction is generated on the reproduction screen of the image.

According to the image reproduction method of the present invention, it is possible to easily move or enlarge the screen even at the edge of the reproduced image.

Description

Image playback method and image processing device executing the same}

1 is an exemplary image for explaining a conventional enlarged image reproduction method in an image processing apparatus such as a digital camera.

2 is a block diagram illustrating a configuration of an exemplary digital camera to which the concept of the present invention can be applied.

3A is the back of the digital camera with the original image displayed.

3B is a back side of the digital camera displaying the enlarged image.

4 is a flowchart illustrating an image reproduction method of an image processing apparatus according to an exemplary embodiment of the present invention.

5 illustrates an embodiment of a screen change according to a direction movement button input in an edge screen state.

6 illustrates another embodiment of a screen change according to a direction movement button input in an edge screen state.

7 illustrates an embodiment of a screen change when a direction movement button is input in an original image screen state.

8 is a flowchart for describing an image reproducing method of the image processing apparatus according to another exemplary embodiment of the present invention.

9 illustrates an embodiment in which a position change and an enlargement / reduction are performed when an image is reproduced.

10 illustrates screens of various stages in which the image reproducing method of FIG. 4 is executed.

The present invention relates to an image processing apparatus such as a digital camera, in particular An image processing method of an image processing apparatus.

1 is an exemplary image for explaining a conventional enlarged image reproduction method in an image processing apparatus such as a digital camera, and shows an image in which the original image is enlarged and displayed on a screen.

When the image is reproduced by the image processing apparatus, the user enlarges or moves the original image a. Referring to FIG. 1, when the user wants to move the visible part of the screen from the enlarged image A to the right, if the part A currently displayed on the screen is an edge of the original image a, the image is displayed on the screen. (A) has no change.

In addition, if the user wants to see the screen (C) in which the edge portion of the image is further enlarged, it is inconvenient to first input the zoom key to enlarge the screen (B) and then input the direction movement key.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide an image reproducing method and an image processing apparatus capable of easily moving or enlarging a screen even at an edge of a reproduced image.

An image reproducing method of an image processing apparatus according to the present invention for achieving the above technical problem comprises the steps of: determining whether a screen position change instruction has occurred on a reproduction screen of an image; Determining whether the position change according to the screen position change instruction is possible based on whether the image displayed on the reproduction screen is an edge image of the original image; And changing and displaying the position of the displayed image on the reproduction screen according to the determination result of the position change.
The image reproduction method includes the steps of: (a) continuously determining whether a position change instruction has occurred; (b) determining whether the displayed image is an edge image of the original image if the position change is possible when the position change instruction occurs; (c) changing the position of the displayed image on the playback screen if the displayed image is not an edge image of the original image; (d) determining whether the image can be enlarged when the displayed image is an edge image of the original image; And (e) enlarging the image one step if it is possible to enlarge the image and changing the position of the displayed image on the reproduction screen according to the position change instruction.
In the step (e), when the image is enlarged, the position and magnification of the current screen are stored, the image is enlarged by one step, and the position of the display image is changed according to the position change instruction.
When a position change instruction for returning to the previous screen position occurs in step (a), the step (c) may return the screen to the stored previous screen position and magnification.
The image reproduction method includes continuously determining whether an enlargement / reduction instruction has occurred; Storing the zoom magnification at the current position when a zoom instruction occurs; And enlarging / reducing the image according to the enlargement / reduction instructions.
In order to achieve the above technical problem, the direction shift button for instructing the position change of the display portion of the image reproduced in the playback mode according to the present invention, the display unit for displaying the playback image on the screen in the playback mode and the direction shift button In the image processing apparatus including a digital signal processor for controlling the position change, the digital signal processor determines whether a screen position change instruction has occurred in the playback screen of the image according to the direction movement button, Determining whether the position change is possible according to the screen position change instruction based on whether the displayed image is an edge image of the original image, and changing and displaying the position of the displayed image on the playback screen according to the determination result of the position change. It features.
If the position change button is not possible at the current magnification when the direction movement button is input to the display unit in one direction, the position and magnification of the current screen are stored, the image is enlarged by one step, and the displayed image is displayed according to the position change instruction. It is characterized in that for changing the position on the playback screen, the position of the screen to the stored position and magnification when the direction movement button is input in the direction opposite to the one direction.

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Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals shown in each drawing refer to components that perform the same function.

2 is a block diagram illustrating a configuration of an exemplary digital camera to which the concept of the present invention can be applied.

The optical system OPS including the lens unit and the filter unit optically processes light from a subject. The lens unit in the optical system OPS includes a zoom lens, a focus lens, and a compensation lens.

A photoelectric conversion unit (OEC) of a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) converts light from an optical system (OPS) into an electrical analog signal. Here, the digital signal processor 7 controls the timing circuit 2 to control the operation of the photoelectric converter OEC and the analog-to-digital converter 1. The CDS-ADC (Correlation Double Sampler and Analog-to-Digital Converter) element 1 as an analog-to-digital converter processes the analog signal from the photoelectric converter (OEC), removes the high frequency noise, and adjusts the amplitude. After that, it is converted into a digital signal. The digital signal processor 7 processes the digital signal from the CDS-ADC element 1 to generate a digital image signal classified into luminance and chroma signals.

The DRAM (Dynamic Random Access Memory) 4 temporarily stores digital image signals and other temporary processing data from the digital signal processor 7.

The EEPROM (Electrically Erasable Programmable Read Only Memory) 5 stores algorithms and setting data necessary for the operation of the digital signal processor 7. The memory card of the user is attached to and detached from the memory card interface 6.

The digital image signal from the digital signal processor 7 is input to the LCD driver 14, whereby the image is displayed on the color LCD panel 17.

On the other hand, the digital image signal from the digital signal processor 7 can be transmitted by serial communication via the USB (Universal Serial Bus) connection 18 or the RS232C interface 8 and its connection 19, and the video filter ( 9) and through video output 20, as a video signal.

The audio processor 13 outputs the audio signal from the microphone MIC to the digital signal processor 7 or the speaker SP, and outputs the audio signal from the digital signal processor 7 to the speaker SP.

The user input unit INP may include a shutter button, a mode selection button, a function selection button, a zoom button, a direction movement button, and the like. The user input unit INP is operated by the user to generate a command for performing each function according to the user's instruction.

The microcontroller 12 controls the lens driver 10, whereby the zoom motor M _Z , the focus motor M _F , and the aperture motor M _A are zoom lenses in the optical system OPS, The focus lens and the aperture are driven respectively. The light emitting unit LAMP driven by the microcontroller 12 may include a self-timer lamp, an auto-focus lamp, a flash standby lamp, and the like. On the other hand, the microcontroller 12 drives the flash 15 by controlling the operation of the flash controller 11 in accordance with the signal from the flash-light amount sensor 16.

The digital camera to which the present invention can be applied does not have to include all the components of FIG. 2, and those skilled in the art can delete some of the components, add another component, or modify some components according to the specification. I will understand.

3A is a rear side of the digital camera 100 as an example of the image processing apparatus of the present invention, and includes a zoom button 104, a zoom out button 106, a direction movement button 102, a display unit 108, and a playback button 110. It is provided.

When the play button 110 is input, the image processing apparatus enters the play mode. When the magnification button 104 / reduction button 106 is input in the playback mode, the image processing apparatus enlarges / reduces the reproduced image about a predetermined reference point and displays it on the display unit 108. When the direction movement button 104 is input in the reproduction mode, the image processing apparatus changes the position of the display portion of the reproduced image.

After the user inputs the play button 110 to enter the play mode and selects an image to be played back, it is displayed on the display unit 108 as shown in FIG. 3A.

FIG. 3B illustrates the display unit screen 108 in which the image is enlarged and moved to the right by the user inputting the enlargement button 104 and the direction movement button 102 in the state of FIG. 3A.

4 is a flowchart illustrating an image reproduction method of an image processing apparatus according to an exemplary embodiment of the present invention.

4 is a view illustrating an image reproducing method of changing and displaying a position after an enlargement of an image based on a predetermined position of a current image when the position change is not possible at the current magnification when a screen position change instruction is generated on an image playback screen; Example.

First, the image selected in the playback mode is played back (S100).

It is determined continuously whether or not a position change button input has occurred during image reproduction (S102). A zoom button input by a user's operation occurs as an interrupt at the time of image reproduction.

If the position change button input has occurred, it is determined whether the position change is possible (S104). When the position change is possible, the position of the display image is changed according to the position change instruction (S106).

Whether it is possible to change the position may be determined by whether the currently displayed image is an edge portion of the original image. If the image currently displayed on the screen is an edge image of the original image, the position cannot be changed at the current magnification. If the image currently displayed on the screen is not the edge image of the original image, the position can be changed at the current magnification until it becomes the edge, and the position of the displayed image is changed.

If it is determined in step S104 that the position change is not possible, it is determined whether the image can be enlarged (S108). If the magnification of the currently displayed screen is not the maximum magnification, it can be enlarged.

If it is determined that the image can be enlarged, the image is enlarged one step (S110), and the position of the display image is changed according to the position change instruction (S106).

If it is determined in step S108 that image magnification is no longer possible, or after step S106, the reproduction of the image is not finished, the flow advances to step S102 to wait for the input of a change button (S112).

5 illustrates an embodiment of a screen change according to a direction movement button input in an edge screen state.

When the enlarged screen is the edge screen 5A of the original image a, when the right button is input, the edge screen 5B magnified one step is displayed. When the left button is input in the enlarged edge screen 5B, the screen moves one step to the left without changing the magnification.

6 illustrates another embodiment of a screen change according to a direction movement button input in an edge screen state.

When the enlarged screen is the edge screen 6A of the original image a, when the right button is input, the edge screen 6B magnified one step is displayed. When the left button is input in the enlarged edge screen 6B state, the screen is returned to the edge screen 6A which has been reduced by one step. When 6A → 6B is changed, the magnification of the previous screen 6A is stored, and when the reverse direction moving button is input, the magnification is returned to the previous state.

7 is an embodiment of the image reproduction method of the present invention when the direction movement button is input in the original image screen state.

When the right / up / left / down move button is input on the screen (a) on which the original image is displayed, the screen is enlarged one step in the original image (a) and moved to the edge of each direction (7A / 7B / 7C / 7D). Is displayed.

8 is a flowchart for describing an image reproducing method of the image processing apparatus according to another exemplary embodiment of the present invention.                     

FIG. 8 illustrates a case in which an enlargement / reduction button input occurs separately from the position change of FIG. 4 during image reproduction.

First, it is determined continuously whether an enlargement / reduction button input has occurred (S200). A zoom button input by a user's operation occurs as an interrupt at the time of image reproduction.

When an enlargement / reduction button input occurs, the position and magnification of the current image are stored (S202), and the image is enlarged / reduced (S204).

9 illustrates an embodiment in which a position change and an enlargement / reduction are performed when an image is reproduced.

When the enlarged screen 9A is the edge screen of the original image a, when the right button is input, the edge screen 9B magnified one step is displayed. When the left button is input in the enlarged edge screen 9B state, the screen is returned to the edge screen 9A reduced by one step.

When the enlarge button is input in the enlarged screen 9A state, the enlarged screen 9C based on the center of the 9A screen is displayed. When the right button is input, the changed screen 9D is displayed. When the left button is input in the enlarged edge screen 9D, the screen 9C moved to the left while maintaining the magnification is displayed.

10 illustrates screens of various stages in which the image reproducing method of FIG. 4 is executed.

As the right button is input in order from the 10A screen where the original image is enlarged by the user's operation, the edge screen 10B of the original image, the edge screen 10C which has been enlarged by one level, and the edge screen which has been enlarged by two levels (10D ) Is displayed. When zooming 10B → 10C → 10D, the magnification before entering the right button is saved.

When the upward movement button is input in the 10D screen, the screen 10E in which only the position is moved without changing the magnification is displayed. As the left shift button is input in order in the 10E screen, the screen is reduced to 10E → 10F → 10G in the reverse order of the stored magnification when 10B → 10C → 10D is enlarged while maintaining the edge screen without changing the position.

When the left shift button is input again on the 10G screen, the screen 10H moved to the inside of the original image without changing the magnification is displayed.

When the down button is pressed in the 10H screen, the screen returns to the 10A screen.

In the embodiment of FIG. 10, whenever the move button is input in a direction where the position is not changeable in the edge screen state, the magnification is stored and the magnification is stored before the enlargement is input. The screen is displayed.

The above embodiments have been described with reference to a digital camera as an example of an image processing apparatus to which the present invention can be applied, but the present invention is not limited thereto. Those skilled in the art will appreciate that the present invention can be applied to a mobile phone, a personal digital assistant (PDA), a personal computer, or the like as an image processing apparatus capable of expanding and reproducing stored images. In addition, the present invention can be applied to a portable multimedia player (PMP), which has recently been in the spotlight. PMP is a portable, next-generation multimedia player with complex functions such as music playback, broadcast reception, games, electronic dictionary, video playback, and digital camera. Even when the image stored in the PMP is enlarged and reproduced, the inventive concept may be applied as it is.

The best embodiments have been disclosed in the drawings and specification above. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, according to the image reproducing method of the present invention, the screen can be easily moved or enlarged even at the edge of the reproduced image.

The invention is not limited to the examples described above and represented in the drawings. Those skilled in the art taught by the above-described embodiments, many modifications to the above-described embodiments are possible by substitution, erasure, merging, etc. within the scope and object of the present invention described in the following claims.

Claims (7)

Determining whether a screen position change instruction has occurred on a playback screen of an image; Determining whether the position change according to the screen position change instruction is possible based on whether the image displayed on the reproduction screen is an edge image of the original image; And And changing and displaying the position of the displayed image on the reproduction screen according to the determination result of the position change. The method of claim 1, (a) continuously determining whether a position change instruction has occurred; (b) determining whether the displayed image is an edge image of the original image if the position change is possible when the position change instruction occurs; (c) changing the position of the displayed image on the playback screen if the displayed image is not an edge image of the original image; (d) determining whether the image can be enlarged when the displayed image is an edge image of the original image; And (e) when the image is enlarged, enlarging the image by one step and changing the position of the displayed image on the reproduction screen according to the position change instruction. The method of claim 2, wherein step (e) If the image can be enlarged, save the position and magnification of the current screen, An image reproducing method, characterized in that the image is enlarged one step and the position of the display image is changed according to the position change instruction. The method of claim 3, In the case of the position change instruction to return to the previous screen position in the step (a), The step (c) is characterized in that to restore the screen to the previous screen position and magnification stored. The method of claim 1, Continuously determining whether an enlargement / reduction instruction has occurred; Storing the zoom magnification at the current position when a zoom instruction occurs; And And enlarging / reducing an image according to the enlargement / reduction instructions. An image including a direction shift button for indicating a position change of the display portion of the image reproduced in the playback mode, a display unit for displaying a reproduction image on the screen in the playback mode, and a digital signal processor for controlling the position change according to the direction shift button In the processing apparatus, The digital signal processor, Determining whether a screen position change instruction has occurred on the playback screen of the image according to the direction movement button, and determining whether the position change according to the screen position change instruction is possible based on whether the image displayed on the playback screen is an edge image of the original image. And changing the position of the displayed image on the reproduction screen according to the determination result of the position change. The image display apparatus according to claim 6, wherein the image is reproduced on the display unit. If position change is not possible at the current magnification when the direction movement button is input in one direction, the position and magnification of the current screen are saved, the image is enlarged by one step, and the displayed image is displayed on the playback screen according to the position change instruction. Change location, And returning the position of the screen to the stored position and magnification when the direction movement button is input in the direction opposite to the one direction.

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