KR100910773B1 - Image zoom playback method - Google Patents

Abstract

The present invention provides a method of determining whether a screen division enlarged reproduction instruction has occurred in an image reproducing mode, and when the screen division enlarged reproduction instruction occurs, dividing the entire original image into a predetermined number of blocks; Disclosed is an image enlarged reproduction method comprising expanding and displaying an image corresponding to a specific block among blocks on a full screen.

Description

Image zoom playback method

1 is a view for explaining a conventional image magnification reproduction method executed in a digital camera.

2 is a block diagram illustrating a configuration of a digital camera as an example of a digital image processing apparatus to which the concept of the present invention may be applied.

3 is a diagram illustrating an example of a front surface of a digital camera as shown in FIG. 1 as an example of a digital image processing apparatus to which the present invention may be applied.

4 is a diagram illustrating an example of a rear surface of a digital camera as shown in FIG. 1 as an example of a digital image processing apparatus to which the present invention may be applied.

5 is a flowchart for explaining an image enlargement and reproduction method according to an exemplary embodiment of the present invention.

6 is a flowchart for explaining an image enlargement and reproduction method according to another exemplary embodiment of the present invention.

FIG. 7 is an example of a screen in which an image is enlarged and reproduced when the user sets 36 zoom divisions according to the example of Table 1. FIG.

The present invention relates to a method for enlarging and reproducing an image stored in an image processing apparatus such as a digital camera.

1 is a view for explaining a conventional image magnification reproduction method executed in a digital camera. In the image playback mode, when the user inputs the zoom button 107, the image is enlarged and reproduced by a predetermined ratio (× 2.2) based on the center point of the currently played image screen 113, and when the direction button 109 is input, the zoom window ( The cursor in 130 moves so that another part of the original image is enlarged and reproduced.

The conventional image magnification reproducing method has a difficulty in manipulating a plurality of buttons when trying to quickly magnify and search all parts in an image.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide an image enlargement reproduction method capable of enlarging and reproducing an original image by a simple operation.

According to the present invention, (a) determining whether a screen division enlarged reproduction instruction has occurred in the image reproduction mode; and (b) dividing the entire original image into a predetermined number of blocks when the screen division enlarged reproduction instruction occurs. And (c) enlarging and displaying an image corresponding to a specific block among the divided blocks on a full screen.

The number of blocks may be set by a user's designation.

In addition, the number of blocks may be automatically set according to the resolution of the original image.
In the step (c), (c1) the entire original image divided into the blocks is reduced and displayed at a predetermined position on the screen, and the cursor is positioned at any one of the blocks dividing the reduced and displayed original images. Specifying a block; and (c2) expanding and displaying an image corresponding to the specified block on the entire screen.

In addition, the present invention comprises the steps of (a) determining whether a screen division enlarged reproduction instruction has occurred in the image playback mode; and (b) when the screen division enlarged reproduction instruction occurs, a predetermined number of blocks of the entire original image. And (c) sequentially expanding an image corresponding to the divided block on the entire screen to reproduce the image in a slide show.
The number of blocks may be set by a user's designation.

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In addition, the number of blocks may be automatically set according to the resolution of the original image.

The method may further include placing the cursor on a block for reducing and displaying the divided image at a predetermined position on the screen and playing the slideshow.

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote components that perform the same function.

2 is a block diagram illustrating a configuration of a digital camera as an example of a digital image processing apparatus to which the concept of the present invention may 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 DSP 7 controls the timing circuit 2 to control the operations of the photoelectric converter OEC and the analog-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. (auto gain control, AGC) and then convert to a digital signal. The DSP 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 DSP 7.

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

The digital image signal from the DSP (Digital Signal Processor) 7 is converted into the display signal of the LCD panel by the LCD driver 14 so that the image is displayed on the color LCD panel 17.

On the other hand, the digital image signal from the DSP 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 a video signal through the video output unit 20.

The audio processor 13 outputs the audio signal from the microphone MIC to the DSP 7 or the speaker SP, and outputs the audio signal from the DSP 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 function of the microcontroller 12 may be implemented in one chip with the DSP 7.

The digital camera to which the present invention can be applied does not have to include all the components of FIG. 1, and those skilled in the art may delete some of the components, add another component, or add some components according to the specification. It will be understood that modifications may be made to the functionality of the various components.

3 is a diagram illustrating an example of a front surface of a digital camera as shown in FIG. 1 as an example of a digital image processing apparatus to which the present invention may be applied.

In front of the digital camera of FIG. 3, a shutter button 104, a jog dial 117, a mode dial 103, a power switch 126, a speaker 124, an AF (auto-focus) auxiliary light 125, and a microphone 123 are provided. ), A remote control receiver 122, a lens 121, a view finder 119, a flash 118, and the like.

4 is a diagram illustrating an example of a rear surface of a digital camera as shown in FIG. 1 as an example of a digital image processing apparatus to which the present invention may be applied.

4, the rear view of the digital camera, the viewfinder 100, the auto focus lamp 101, the flash status lamp 102, the mode dial 103, the shutter button 104, the LCD button 105, the wide-angle zoom button. (106), telephoto zoom button 107, 5 function button 109, DC power input terminal 110, external output terminal 111, playback mode button 112, LCD monitor 113, manual focus button ( 114), the automatic exposure lock button 115, the image quality adjustment button 116 and the like are provided.

The LCD monitor 113 displays an OSD (On Screen Display) indicating the current shooting mode and status of the digital camera.

The five-function button 106 has a menu entry / OK button and up, down, left, and right buttons at the center. When the menu is displayed on the monitor, the up, down, left, and right directional buttons can function as special function buttons instead of directional movement.

The various function buttons shown in FIG. 4 may be provided to perform two or more complex functions in addition to the functions shown in the names.

5 is a flowchart for explaining an image enlargement and reproduction method according to an exemplary embodiment of the present invention.

First, it is continuously determined whether an enlarged reproduction instruction has occurred (S100). When the step S100 is implemented in the digital camera, an enlarged playback instruction may be generated by selecting one image in the image playback mode and inputting an enlarged button, for example, 107 of FIG. 3. In addition, when the step S100 is implemented in the image reproducing software of the personal computer, an enlarged reproduction instruction may be generated by selecting a reproduced image and selecting an enlarged menu.

When an enlarged playback instruction occurs, the original image is divided into a predetermined number of blocks (S102).

The number of split blocks may be set by a user's designation. In a digital camera, this may be implemented as a menu for designating the number of divided blocks on the enlarged reproduction menu. In addition, the number of the divided blocks may be linked to the jog dial so that when the user turns the jog dial, the number of the divided blocks may be directly increased or decreased on the enlarged reproduction screen.

Table 1 below shows an example of the minimum zoom division and the maximum zoom division that can be set according to the image size (resolution).

Image size (resolution) Zoom split 3264 × 2448 Minimum zoom split 4 Max zoom split 36 3264 × 2176 Minimum zoom split 4 Max zoom split 36 3264 × 1836 Minimum zoom split 4 Max zoom split 25 2400 × 1800 Minimum zoom split 4 Max zoom split 25 1632 × 1224 Minimum zoom split 4 Max zoom split 16 1024 × 768 Minimum zoom split 4 Max zoom split 16 640 × 480 Minimum zoom split 4 Max zoom split 9

The user can select and set the number of divisions between the minimum zoom division and the maximum zoom division illustrated in Table 1 on the image viewer software of the digital image processing apparatus or the personal computer.

In addition, the number of split blocks may be implemented to be automatically set to a default value according to the resolution of the original image. In operation S102 of FIG. 5, if the user does not input a separate zoom division number, the default zoom division number may be automatically set to the maximum zoom division.

After the step S102, the equally divided image is reduced and displayed at a predetermined position on the screen (S104). In accordance with the change of the position of the cursor, the image of the block is enlarged and displayed on the entire screen (S106). Steps S104 and S106 may be implemented, for example, as shown in FIG. 7 to be described later.

6 is a flowchart for explaining an image enlargement and reproduction method according to another exemplary embodiment of the present invention.

First, it is continuously determined whether an enlarged reproduction instruction has occurred (S200). When implemented in a digital camera, an enlarged playback instruction may be generated by selecting one image in an image playback mode and inputting an enlarged button (107 in FIG. 4). In addition, in the case of image reproducing software of a personal computer, an enlarged reproduction instruction may be generated by selecting a reproduced image and selecting an enlarged menu.

When an enlarged playback instruction occurs, the original image is divided into a predetermined number of blocks (S202).

As described in step S102 of FIG. 5, the number of split blocks may be set by user designation. In a digital camera, this may be implemented as a menu for designating the number of divided blocks on the enlarged reproduction menu. In addition, the number of the divided blocks may be linked to the jog dial so that when the user turns the jog dial, the number of the divided blocks may be directly increased or decreased on the enlarged reproduction screen. In addition, the number of split blocks may be implemented to be automatically set to a default value according to the resolution of the original image.

The equally divided images are sequentially enlarged on the full screen and reproduced as a slide show (S204).

In operation S204, the slideshow may be performed without displaying the evenly divided images 401 and 403 of FIG. 7.

In operation S204, the equally divided image may be reduced and displayed at a predetermined position on the screen, and the cursor may be positioned at a partition block sequentially reproduced as a slide show.

FIG. 7 is an example of a screen in which an image is enlarged and reproduced when the user sets 36 zoom divisions according to the example of Table 1. FIG.

As the user moves the cursor in the reduced uniformly divided image displayed on the lower left of the screen, the image of the block is enlarged and displayed on the entire screen. For example, when the cursor is positioned in the second block, the image 400 of the second block portion is enlarged and displayed on the entire screen. When the cursor is positioned in the third block, the image 402 of the third block portion is enlarged and displayed on the entire screen.

In the exemplary embodiment of FIG. 7, as illustrated in FIG. 5, an image of a divided block may be enlarged according to a movement of a cursor by a user's manipulation.

In addition, in the embodiment of FIG. 7, as described in step S204 of FIG. 4, the cursor is automatically moved from 1 → 2 → 3 →. → The block may be sequentially enlarged by moving to 36.

In a digital camera equipped with a jog dial, the number of split blocks may be linked to the jog dial so that the number of split blocks increases or decreases immediately on the enlarged reproduction screen when the user turns the jog dial. For example, by turning the jog dial, the evenly divided images 401 and 403 of FIG. 7 can be directly adjusted to 16 divisions ↔ 25 divisions ↔ 36 divisions, and the like.

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 can apply the present invention to a case where an image is enlarged and reproduced in a mobile phone, a personal digital assistant (PDA), a portable multimedia player (PMP), or the like as an image processing apparatus capable of reproducing and storing the stored image. The image magnification and reproduction method of the present invention can also be applied to image reproduction software executed on a personal computer.

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 enlargement reproduction method of the present invention, by applying block division of an image for enlarged reproduction, it is convenient to quickly search and enlarge and reproduce the divided portions of the original image by a simple operation.

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 (8)

delete (a) determining whether a screen division enlarged reproduction instruction has occurred in the image reproduction mode; (b) dividing the entire original image into a plurality of blocks when the screen division enlarged reproduction instruction is generated; And (c) enlarging and displaying an image corresponding to a specific block among the divided blocks on an entire screen; And the number of blocks is set by user's designation. (a) determining whether a screen division enlarged reproduction instruction has occurred in the image reproduction mode; (b) dividing the entire original image into a plurality of blocks when the screen division enlarged reproduction instruction is generated; And (c) enlarging and displaying an image corresponding to a specific block among the divided blocks on an entire screen; And the number of blocks is set automatically according to the resolution of the original image. delete (a) determining whether a screen division enlarged reproduction instruction has occurred in the image reproduction mode; (b) dividing the entire original image into a plurality of blocks when the screen division enlarged reproduction instruction is generated; And and (c) sequentially expanding images corresponding to the divided blocks on a full screen and playing them in a slide show. The method of claim 5, And the number of blocks is set by user's designation. The method of claim 5, And the number of blocks is set automatically according to the resolution of the original image. The method of claim 5, And reducing the size of the divided image on the screen and placing the cursor on a block for playing the slideshow.

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