KR101257368B1 - Method for processing digital image - Google Patents

Abstract

The present invention relates to a method of operating a digital image processing apparatus, and more particularly, to a digital image processing method capable of dividing an entire image into a plurality of regions and processing and storing and printing an image corresponding to a selected region. In the digital image processing method, an image displayed on a display panel of a digital image processing apparatus is divided into a predetermined number of regions, and when an image of a specific region is selected from the divided images, the image is enlarged according to an operation state of the apparatus. Shooting the entire image including the selected image or storing it under a new name.

Description

Digital image processing method {Method for processing digital image}

1 is a block diagram showing the configuration of a digital image processing apparatus to which the present invention is applied.

2 is a flowchart illustrating an operation of a digital image processing method according to a first embodiment of the present invention.

3A and 3B are diagrams for dividing and selecting an image in a display panel equipped with a display panel and a touch pad, and FIG. 3C is a diagram for selecting a specific image by a touch pen on a touch screen.

4A and 4B illustrate a selected image and an enlarged selected image.

5 is a diagram illustrating an entire image including an enlarged selected image.

6 is a flowchart illustrating an operation of a digital image processing method according to a second embodiment of the present invention.

The present invention relates to a method of operating a digital image processing apparatus, and more particularly, to a digital image processing method capable of dividing an entire image into a plurality of regions and processing and storing and printing an image corresponding to a selected region.

The digital camera as a digital image processing apparatus is equipped with a zoom function, and can enlarge an image as a whole. This kind of zoom includes optical zoom and digital zoom.

Optical zoom combines multiple lenses to move, zooming in on a subject by reducing or increasing the focal length. Recently, there are many models that have more than 2-3 times the built-in zoom, and the zoom lens has a variety of angles of view and perspective compared to the monofocal lens, and has the advantage of taking large objects farther away without degrading image quality. However, there is a disadvantage in that the brightness of the lens becomes dark.

Unlike optical zoom, digital zoom magnifies the image on the CCD. Therefore, the digital zoom can be used even in a short focus lens whose focal length cannot be changed. Digital zoom has an advantage of allowing you to see or zoom in on a distant object up close, but has a disadvantage in that the resolution is much lower than the original image due to the characteristics of the digital zoom.

As such, a camera equipped with an optical zoom or digital zoom function supports only the overall zooming function of an image to enlarge only an image of a specific region of the entire image and save / print separately, or to display an entire image including an image of an enlarged specific region. There is a problem that cannot be saved / printed.

The technical problem to be achieved by the present invention is to divide the entire image displayed on the digital image processing apparatus into a plurality of regions, enlarge the specific image of the selected region, and then capture the entire image including the image of the enlarged specific region. To provide a digital image processing method that can be stored separately or.

Another technical problem to be achieved by the present invention is to provide a digital image processing method capable of dividing an entire image displayed on a digital image processing apparatus into a plurality of regions and enlarging and capturing only a specific image of a selected region or separately storing the image.

According to an aspect of the present invention, there is provided a method of operating a digital image processing apparatus, the method comprising: (a) dividing an image displayed on a display panel of the apparatus into a predetermined number of regions; (b) if an image of a specific region is selected from the divided image, enlarging the selected image; And (c) capturing the entire image including the enlarged selected image or storing the image under a new name according to the operation state of the device.

According to another aspect of the present invention, there is provided a digital image processing method including: (a) dividing an image displayed on a display panel of the device into a predetermined number of regions; (b) if an image of a specific region is selected from the divided image, displaying only the selected image; And (c) photographing or storing the displayed image under a new name according to the operation state of the device.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

1 is a block diagram showing the configuration of a digital image processing apparatus to which the present invention is applied.

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

When the user presses the wide angle-zoom button (39w in FIG. 3) or the telephoto-zoom button (39t in FIG. 3) included in the user input unit INP, the corresponding signal is output to the microcontroller 512. ) Is entered. Accordingly, as the microcontroller 512 controls the lens driver 510, the zoom motor MZ is driven to move the zoom lens ZL. That is, when the wide-angle zoom button 39w is pressed, the focal length of the zoom lens ZL is shortened to widen the angle of view, and when the telephoto-zoom button 39t is pressed, the zoom is performed. The focal length of the lens ZL becomes long and the angle of view becomes narrow.

According to such a characteristic, the microcontroller 512 may obtain an angle of view θ with respect to the position of the zoom lens ZL from the design data of the optical system OPS. Here, since the position of the focus lens FL is adjusted in a state where the zoom lens ZL is set, the angle of view? Is hardly affected by the position of the focus lens FL. The compensation lens CL is not separately driven since it serves to compensate the overall refractive index.

Reference numeral MA denotes a motor for driving an aperture (not shown). Here, the rotation angle of the aperture driving motor MA varies depending on the case of the designated exposure mode and the case of not. The designated exposure mode is a mode for setting the exposure amount of the digital camera with respect to the average luminance of the designated detection area when a certain area desired by the user in the subject area coincides with the designated detection area displayed on the display panel 35 of the digital camera It says.

In the filter part (not shown) of the optical system OPS, an optical low pass filter (OLPF) removes optical noise of high frequency content. Infra-red cut filter (IRF) blocks incoming infrared light.

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 507 controls the timing circuit 502 to control the operations of the photoelectric conversion unit (OEC) and the analog-digital conversion unit 501. A CDS-ADC (Correlation Double Sampler and Analog-to-Digital Converter) element 501 as an analog-to-digital conversion section processes an analog signal from the photoelectric conversion section OEC to remove high frequency noise, And then converted into a digital signal. The digital signal processor 507 processes the digital signal from the CDS-ADC element 501 to generate a digital image signal classified into luminance and chroma signals.

The light emitting unit LAMP driven by the microcontroller 512 includes a self-timer lamp 11, an auto-focus lamp (not shown), and a flash standby lamp (not shown).

In the user input unit INP, a shutter button (13 in FIG. 3), a touch pad 36, a mode setting button (37 in FIG. 3), a red eye prevention button (38 in FIG. 3), wide-angle- Zoom button 39w, Tele-zoom button 39t, Menu-selection button (40ok in FIG. 3), Up-move button (40up in FIG. 3), Right-move button (40ri in FIG. 3), Down- A move button (40do in FIG. 3), a left-move button (40le in FIG. 3), a play mode button 41 and a trashcan button 42 are included.

The digital video signal from the digital signal processor 507 is temporarily stored in the DRAM (Dynamic Random Access Memory) 504. The EEPROM (Electrically Erasable Programmable Read Only Memory) 505 stores algorithms and setting data necessary for the operation of the digital signal processor 507.

The memory card of the user is attached to or detached from the memory card interface 506.

The digital image signal from the digital signal processor 507 is input to the LCD driver 514, whereby the image is displayed on the display panel 35, that is, the LCD.

On the other hand, the digital video signal from the digital signal processor 507 can be transmitted by serial communication via a universal serial bus (USB) connection 21a or an RS232C interface 508 and its connection 21b, and a video filter ( 509 and the video output unit 21c can be transmitted as a video signal.

The audio processor 513 outputs the audio signal from the microphone MIC to the digital signal processor 507 or the speaker SP and outputs the audio signal from the digital signal processor 507 to the speaker SP. On the other hand, the flash 12 is driven through the microcontroller 512 and the flash controller 511 according to the signal from the flash-light sensor 19.

 When the voice guidance function setting signal is selected by the user, the state of the digital camera may be output as voice. In addition, when the OSD is turned off or the display panel 35, that is, the display is turned off, the voice guidance function is automatically set to output the state of the digital camera as a voice.

The digital signal processor 507 controls the reproduction of the moving picture file stored in the DRAM 504 or the memory card by a user input signal input from the microcontroller 512.

2 is a flowchart illustrating an operation of a digital image processing method according to a first embodiment of the present invention. After dividing the entire image displayed on the display panel 35 into a plurality of regions and enlarging a specific image of the selected region, An operation algorithm of the digital signal processor 507 for processing to capture or separately store the entire image including the enlarged specific region of the image is shown.

Although not shown in the drawing, the user first selects an image portion selection function menu at the time of image capturing or playback from a camera as a digital image processing apparatus.

Thereafter, the digital signal processor 507 receiving the region division information input by the user divides the region displayed on the display panel 35 into a predetermined number of regions (step 200).

There are two methods of inputting the region division information by the user, as shown in FIG. 3A, using the external function keys 37 and 38, and the method using the touch pad 36 as shown in FIG. 3B.

First, the area division using the external function key shown in FIG. 3A will be described. The digital signal processor 507 uses the mode setting button 37 and the red-eye reduction button 38 signal input by the user for area division. Receive. In the present embodiment, the function button for the area division is described as the mode setting button 37 and the red eye prevention button 38, but the area is divided using the playback mode button 41 and the trashcan button 42 according to the setting. In addition, the area can be divided by any external button provided in the camera according to the setting.

In an embodiment, the mode setting button 37 divides the horizontal line of the display panel 35, and the red eye prevention button 38 divides the vertical line of the display panel 35. For the horizontal line division, when the user inputs the mode setting button 37 once, the digital signal processor 507 receives this and divides the horizontal line of the display panel 35 into two pieces, and the user sets the mode setting button 37. ) Is input twice, the digital signal processor 507 receives this and divides the horizontal line of the display panel 35 into three. For the vertical line division, when the user inputs the red-eye reduction button 38 once, the digital signal processor 507 receives it and divides the vertical line of the display panel 35 into two. ) Is input twice, the digital signal processor 507 receives this and divides the vertical line of the display panel 35 into three. In this way, the area may be further divided according to the number of inputs of the mode setting button 37 and the red eye prevention button 38.

In FIG. 3A, the user inputs the mode setting button 37 twice in succession and the red-eye prevention button 38 twice in succession, and the digital signal processor 507 receives the image displayed on the display panel 35. It shows the division into 9 areas (① ～ ⑨).

When region division is completed, the digital signal processor 507 calculates and stores (X coordinate, Y coordinate) of each region. This is to distinguish the selected area to be described later. The digital signal processor 507 stores (X coordinate, Y coordinate) of each area differently according to the set resolution. For example, when the set resolution is 1024 × 768, the digital signal processor 507 may set the Y coordinate of the first horizontal line H1 to 200 and the Y coordinate of the second horizontal line H2 to 600. The X coordinate of the first vertical line V1 may be set to 300, and the X coordinate of the second vertical line V2 may be set to 600. If the area ⑤ is selected by the user, (X coordinate, Y coordinate) of each vertex of the area ⑤ becomes (200,300), (200, 600), (600, 300), (600, 600).

Next, the division of the area using the touch pad 36 illustrated in FIG. 3B will be described. The touch pad 36 is provided in horizontal and vertical columns of the display panel 35 and includes buttons B1 to B12. have. The buttons B1 to B13 provided in the horizontal and vertical columns of the display panel 35 are integrated with a touch sensor (not shown) and a contact switch (not shown).

That is, the touch sensors are provided on the upper portions of the buttons B1 to B13, and move up / down / left / right while touching the buttons B1 to B7 in the horizontal row or the buttons B8 to B12 in the vertical row. You can select any value (eg color or brightness) from the main menu items or activate the submenu icons included in the main menu icons. In addition, a contact switch is provided below the touch sensor so that a corresponding function can be executed by directly selecting a main menu icon and a submenu icon. The touch sensor requires only a weak touch relative to the contact switch input, but the contact switch input requires a relatively strong touch compared to the touch sensor input.

Referring to region division using the touch pad 36 illustrated in FIG. 3B, the digital signal processor 507 receives a touch pad 36 signal by a user for region division. When an image portion selection function menu is selected at the time of image capturing or playback by the user, the digital signal processor 507 sets the touch pad 36 as an input button for setting an area.

In an embodiment, the touch pad buttons B1 to B7 divide the image displayed on the display panel 35 into vertical lines, and the touch pad buttons B8 to B12 horizontally line the image displayed on the display panel 35. Divide into

In order to divide the horizontal line, when the user inputs the touch pad button B8, the digital signal processor 507 receives it and divides the horizontal line corresponding to the position of the B8 on the display panel 35, and the user touches the touch pad button B10. In response to the input, the digital signal processor 507 receives this and divides the horizontal line corresponding to the position of B10 in the display panel 35. In this case, the user may simultaneously input the touch pad buttons B8 to B12. In FIG. 3B, a user simultaneously inputs touch pad buttons B9 and B11, and the digital signal processor 507 receives the two, and two horizontal lines corresponding to the positions of the touch pad buttons B9 and B11 input from the display panel 35. Shows an example of splitting.

For the vertical line division, when the user inputs the touch pad button B1, the digital signal processor 507 receives this and divides the horizontal line corresponding to the position of B1 on the display panel 35, and the user touches the touch pad button B6. In response to the input, the digital signal processor 507 receives this and divides the horizontal line corresponding to the position of B6 on the display panel 35. In this case, the user may simultaneously input the touch pad buttons B1 to B7. In FIG. 3B, a user simultaneously inputs touch pad buttons B3 and B5, and the digital signal processor 507 receives the two, and two horizontal lines corresponding to the positions of the touch pad buttons B3 and B5 input from the display panel 35. Shows an example of splitting.

As a result, in order to obtain the divided image as shown in FIG. 3B, the user may input the touch pad buttons B3, B5, B9, and B11 buttons, and the digital signal processor 507 receiving the divided images may display the image displayed on the display panel 35. Divided into nine areas (① ～ ⑨).

When region division is completed, the digital signal processor 507 calculates and stores (X coordinate, Y coordinate) of each region. This is to distinguish the selected area to be described later. The digital signal processor 507 stores (X coordinate, Y coordinate) of each area differently according to the set resolution and the input button. The digital signal processor 507 calculates and stores the X coordinate position of each button by dividing the resolution of the set horizontal line by the number of touch pad buttons B1-B7, and stores the resolution of the set vertical line on the touch pad buttons B8. Divide by the number of B12) and calculate and save the Y coordinate position of each button. For example, when the set resolution is 1024 × 768, the digital signal processor 507 calculates and stores the X coordinate of B3 as 351 and the coordinate of B5 as 525, and stores the Y coordinate of B9 as 307 and the Y of B11. The coordinate is calculated as 614 and stored. If area ⑤ is selected by the user, the (X coordinate, Y coordinate) of each vertex of the area ⑤ becomes (351, 307), (351, 614), (525, 307), (525, 614). .

When the region division of the digital signal processor 507 is completed, the user selects an image of a specific region from the divided image and the digital signal processor 507 receives it (step 205). In the case of using an external function key as shown in FIG. 3A, a specific area is moved through an area movement using an up-move button 40up, a right-move button 40ri, a down-move button 40do, and a left-move button 40le. Can be selected. When using the touch pad 36 as illustrated in FIG. 3B, a specific area may be selected by moving the area using the buttons B1 to B12. As an example, assume that region (5) is selected in FIG. 3A.

In addition, when the display panel 35 is a touch screen, as shown in FIG. 3C, an input tool (for example, a touch pen) may be used to select a desired specific image from the entire image. In the case of FIG. 3C, the digital signal processor 507 calculates and stores the touch pen input start point (X coordinate, Y coordinate), and calculates and stores (X coordinate, Y coordinate) of the movement point of the touch pen in units of time. It is possible to determine the position of the specific image desired.

When the selection of the image of the specific area by the user is completed, the digital signal processor 507 enlarges the selected image (step 210). Since the digital signal processor 507 calculates and stores the position coordinates of the selected image, the digital signal processor 507 enlarges and displays the selected image on the display panel 35. Here, the selected specific image may be enlarged up to a magnification that is supported by the camera. After the selected image is enlarged, the image can be viewed while moving by inputting an up-move button 40up, a right-move button 40ri, a down-move button 40do, and a left-move button 40le. FIG. 4B shows an enlarged image of the region ⑤ selected in FIG. 3A and displayed.

When the selected image is enlarged by a predetermined magnification, the digital signal processor 507 determines the state of the camera. When the camera is in the image capturing state (step 215), when the shutter button 13 is input by the user, the digital signal processor 507 enlarges the enlarged image. In operation 220, the entire image including the entire image including the selected area is photographed and stored. FIG. 5 shows an entire image including an enlarged image of region?. The image of the area ⑤ enlarged among the entire images can be viewed while moving the entire image by inputting the up-move button 40up, the right-move button 40ri, the down-move button 40do, and the left-move button 40le. Can be. In addition, the image of the other region may be enlarged by adding a single image or a plurality of images other than the region of the region ⑤, the image of the region ⑤ previously selected may be canceled, and the image of another region may be newly selected and enlarged. In this case, an additional area is selected by using the up-move button 40up, the right-move button 40ri, the down-move button 40do, the left-move button 40le, and the menu-selection button 40ok. Alternatively, when deleted, the digital signal processor 507 displays an image of the deleted area at the original magnification, and displays an image of the selected area in an enlarged manner.

When the camera is in the playback state of the stored image (step 225), when the storage signal is input by the user, the digital signal processor 507 displays the entire image including the entire image including the enlarged selection region shown in FIG. Save with a new name (step 230).

Images stored by shooting and / or images stored under a new name can be printed.

Next, FIG. 6 is a flowchart illustrating an operation of the digital image processing method according to the second embodiment of the present invention. The entire image displayed on the display panel 35 is divided into a plurality of regions, and only a specific image of the selected region is enlarged. The control algorithm of the digital signal processor 507, which can be photographed or stored separately, is as follows.

Although not shown in the drawing, the user first selects an image portion selection function menu at the time of image capturing or playback from a camera as a digital image processing apparatus.

Thereafter, the digital signal processor 507 receiving the region division information input by the user divides the region displayed on the display panel 35 into a predetermined number of regions (step 600). Description of region division is omitted since it is disclosed in the first embodiment.

When the region division of the digital signal processor 507 is completed, the user selects an image of a specific region from the divided image and the digital signal processor 507 receives it (step 605). As an example, assume that region (5) is selected in FIG. 3A.

When an image of a specific area is selected, the digital signal processor 507 displays only the selected image (step 610). 4A shows that only the image of the selected region? Is displayed.

Thereafter, the digital signal processor 507 determines the state of the camera and, when the camera is in the image capturing state (step 615), when the shutter button 13 is input by the user, the digital signal processor 507 captures and stores the image of the selected area ( Step 620). When taking an image, a wide angle zoom button 39w may be input to enlarge an image of a selected area. That is, as illustrated in FIG. 4A, an image of region ⑤ not enlarged may be photographed, and an image of region ⑤ enlarged as illustrated in FIG. 4B may be captured. After the selected image is enlarged, the image can be viewed while moving by inputting an up-move button 40up, a right-move button 40ri, a down-move button 40do, and a left-move button 40le.

If the camera is in the playback state of the stored image (step 625), when the storage signal is input by the user, the digital signal processor 507 stores only the selected image shown in Figure 4a or 4b with a new name (step 630). . In addition, a wide angle-zoom button 39w may be input to enlarge and store an image of a selected area.

Images stored by shooting and / or images stored under a new name can be printed.

As described above, according to the present invention, after dividing the entire displayed image into a plurality of regions and enlarging the specific image of the selected region, the entire image including the enlarged specific region image may be taken or stored separately, and the display may be performed. The entire image can be divided into a plurality of areas, and only the specific image of the selected area can be enlarged and photographed or stored separately, thereby creating an effect of maximizing user satisfaction with the digital image processing device.

So far I looked at the center of the preferred embodiment for the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

Claims (13)

As an operation method of a digital image processing apparatus, (a) dividing an image displayed on a display panel of the device into at least two areas; (b) if an image of a specific region is selected from the divided image, enlarging the selected image; And (c) photographing the entire image including the enlarged selected image or storing the image under a new name according to an operation state of the device. The method of claim 1, wherein in step (a) And dividing the displayed image into at least two regions from an arbitrary function key input signal provided in the apparatus. The method of claim 1, wherein in step (a) And dividing the displayed image into at least two areas from a touch pad input signal provided around the display panel. The method of claim 1, And when the display panel is a touch screen, a desired image can be selected using an arbitrary recording tool. The method of claim 1, wherein in step (b), A plurality of images of the specific region may be selected, and the plurality of images are enlarged. The method of claim 1, wherein in step (b), Canceling the previously selected specific image, selecting a new specific region image, and enlarging the new selected image. The method of claim 1, wherein the enlarged selection image in step (c) is Digital image processing method characterized in that the moving by using the direction key provided in the device. As an operation method of a digital image processing apparatus, (a) dividing an image displayed on a display panel of the device into at least two areas; (b) if an image of a specific region is selected from the divided image, displaying only the selected image; And (c) photographing or storing the displayed image under a new name according to an operation state of the device. The method of claim 8, wherein in step (a) And dividing the displayed image into at least two regions from an arbitrary function key input signal provided in the apparatus. The method of claim 8, wherein in step (a) And dividing the displayed image into at least two areas from a touch pad input signal provided around the display panel. 9. The method of claim 8, And when the display panel is a touch screen, a desired image can be selected using an arbitrary recording tool. The digital image processing method according to claim 8, wherein the image displayed in step (b) or (c) is enlargeable. The method of claim 8, wherein in step (b), The image of the specific area may be selected in plural, and only the selected plurality of images are displayed.

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