KR101580840B1 - Apparatus and method for processing digital image - Google Patents

Apparatus and method for processing digital image Download PDF

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Publication number
KR101580840B1
KR101580840B1 KR1020090044493A KR20090044493A KR101580840B1 KR 101580840 B1 KR101580840 B1 KR 101580840B1 KR 1020090044493 A KR1020090044493 A KR 1020090044493A KR 20090044493 A KR20090044493 A KR 20090044493A KR 101580840 B1 KR101580840 B1 KR 101580840B1
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KR
South Korea
Prior art keywords
image
area
information
photographing direction
color coordinate
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KR1020090044493A
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Korean (ko)
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KR20100125670A (en
Inventor
박정우
박치연
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삼성전자주식회사
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/232Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles

Abstract

The present invention relates to a digital image processing apparatus and method for detecting an image photographing direction without a gyro sensor. The digital image processing apparatus includes digital signal processing means for setting at least one region from the photographed image and recognizing a change in the image photographing direction when a change occurs in the color coordinate information of the setting region. According to the present invention, a video shooting direction is detected without a gyro sensor, and a photographed video is stored and reproduced according to a detected direction to provide convenience to the user.
Figure R1020090044493
Area setting, color coordinate information detection, photographing direction detection

Description

[0001] Apparatus and method for processing digital image [

The present invention relates to a digital image processing apparatus and method for detecting a direction of image capturing without a gyro sensor.

When taking an image through a digital image processing apparatus, there may be a case where the digital image processing apparatus is rotated in the horizontal direction or the vertical direction depending on the user's taste or the shooting environment. In this case, when the photographed image is reproduced on the display unit, the direction of the image is also expressed in a rotated state, which is very inconvenient for recognizing the image. Therefore, when browsing to check a photographed image, there is a need for a method for viewing the photographed image in a normal direction regardless of the photographed direction.

SUMMARY OF THE INVENTION The present invention is directed to a digital image processing apparatus and method for detecting an image capturing direction through setting a region of a live view image without a gyro sensor and storing and reproducing an image captured according to the sensed direction .

According to an aspect of the present invention, there is provided a digital image processing apparatus that sets at least one region from an image and recognizes a change in the image capturing direction when a change occurs in color coordinate information of the setting region It is preferable to include digital signal processing means.

In the present invention, the digital signal processing means may include an area setting unit for setting at least one area from the photographed image; A first detection unit for detecting color coordinate information from the set area; A comparison unit comparing the color coordinate information and the color coordinate information of the area at the time of the first shutter-release button input; And a second detection unit for detecting the photographing direction information according to the comparison result.

In the present invention, the detected photographing direction information may be stored in a thumbnail information area of a video file.

In the present invention, the apparatus may further include an image storage control unit for responding to the second shutter-release button input signal to change and store the photographing direction of the image according to the detected photographing direction information, or to store the photographing image .

In the present invention, the image reproduction control unit for reproducing the stored image with the changed shooting direction or changing the shooting direction using the shooting direction information of the thumbnail information area for the stored image whose shooting direction has not changed .

According to an aspect of the present invention, there is provided a digital image processing method comprising the steps of: (a) setting at least one region from a photographed image and detecting color coordinate information of the setting region; (b) detecting the photographing direction information by comparing the color coordinate information and the color coordinate information of the area at the time of inputting the first shutter-release button; And (c) changing the photographing direction of the image according to the detected photographing direction information in response to the second shutter-release button input signal.

In the present invention, the detected photographing direction information may be stored in a thumbnail information area of a video file.

According to an aspect of the present invention, there is provided a digital image processing method comprising the steps of: (a) setting at least one region from a photographed image and detecting color coordinate information of the setting region; (b) detecting the photographing direction information by comparing the color coordinate information and the color coordinate information of the area at the time of inputting the first shutter-release button; (c) changing the shooting direction of the image according to the detected shooting direction information in response to the second shutter-release button input signal, or storing the shot image; And (d) reproducing the stored image with the changed shooting direction or changing the shooting direction using the shooting direction information with respect to the stored image whose shooting direction has not been changed.

In the present invention, the detected photographing direction information may be stored in a thumbnail information area of a video file.

As described above, according to the present invention, a video shooting direction is detected without a gyro sensor, and a photographed video is stored and reproduced according to a detected direction to provide convenience to the user.

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

1 is a block diagram showing a configuration of a digital image processing apparatus according to the present invention. 1 schematically shows a digital photographing apparatus as a kind of digital image processor. Of course, the present invention is not limited to the digital image processor as shown in FIG. 1, and the present invention can be applied to image processing apparatuses such as PDAs (personal digital assistants) and PMPs (personal multimedia players). This also applies to the following embodiments and modifications thereof.

The overall operation of the digital image processing apparatus is governed by the CPU 100. [ The digital image processing apparatus is provided with an operation unit 200 including a key for generating an electrical signal from a user. An electrical signal from the operation unit 200 is transmitted to the CPU 100 so that the CPU 100 can control the digital image processing apparatus in accordance with an electrical signal.

The CPU 100 recognizes the signal and controls the lens driving unit 11, the diaphragm driving unit 21, and the imaging device control unit 31 as an electrical signal from the user is applied to the CPU 100 , Thereby controlling the position of the lens 10, the degree of opening of the diaphragm 20, and the sensitivity of the imaging element 30, respectively. The image pickup element 30 generates data from the input light, and the analog / digital conversion section 40 converts the analog data output from the image pickup element 30 into digital data. Of course, the analog-to-digital conversion section 40 may not be required depending on the characteristics of the imaging element 30. [

The data from the image pickup device 30 may be input to the digital signal processing unit 50 via the memory 60 or may be input to the digital signal processing unit 50 without going through the memory 60, (Not shown). Here, the memory 60 is a concept including ROM, RAM, and the like. The digital signal processing unit 50 can perform digital signal processing such as gamma correction, white balance change, and the like as necessary. 2, the digital signal processing section 50 includes an area setting section 51, a color coordinate information detecting section 52, a comparing section 53, a photographing direction detecting section 54, an image storing control section 55, And a video reproduction control unit 56. [0034] The area setting section 51, the color coordinate information detecting section 52, the comparing section 53, the photographing direction detecting section 54, the image storing control section 55, and the image reproducing control section 56, It may be a separate component rather than an element. That is, the digital image processing apparatus according to the present embodiment includes the area setting unit 51, the color coordinate information detecting unit 52, the comparing unit 53, the photographing direction detecting unit 54, the image storing control unit 55, 56 may be provided. Operations of the area setting section 51, the color coordinate information detecting section 52, the comparing section 53, the photographing direction detecting section 54, the image storing control section 55 and the image reproducing control section 56 will be described later.

The image from the data outputted from the digital signal processing section 50 is transmitted to the display control section 81 through the memory 60 or directly. The display control unit 81 controls the display unit 80 to display an image on the display unit 80. In the present invention, the display unit 80 may be a touch screen. The data output from the digital signal processing unit 50 is input to the memory 60 or directly to the storage / read control unit 71. The storage / And stores the data in the storage medium (70). Of course, the storage / read control unit 71 reads data from the image file stored in the storage medium 70 and inputs it to the display control unit 81 through the memory 60 or another path, So that the image is displayed. The storage medium 70 may be removable or permanently attached to the digital image processing apparatus.

Hereinafter, functions of the digital signal processor 50 will be described with reference to FIGS. 2 and 3. FIG.

The digital signal processing unit 50 sets at least one area from the live view image, recognizes a change in the image capturing direction when a change occurs in the color coordinate information of the setting area, stores the captured image in the changed capturing direction And plays the stored video. To this end, the digital signal processing unit 50 includes an area setting unit 51, a color coordinate information detecting unit 52, a comparing unit 53, a photographing direction detecting unit 54, an image storing control unit 55, .

The area setting unit 51 sets at least one area from the live view image. 3A shows an example in which a live view image is displayed on the display unit 80 of the digital image processing apparatus and the first area 301a to the fifth area 305a are set. The area setting of the present invention is not necessarily fixed to the first area 301a to the fifth area 305a, and at least one area may be set according to a user's request. In the present invention, it is assumed that the first area 301a to the fifth area 305a are set for convenience of explanation.

The color coordinate detecting section 52 detects the color coordinate information from the first area 301a to the fifth area 305a of the live view image.

After the detection of the color coordinate information is completed, when the first shutter-release button 31 is inputted from the user, the comparison section 53 compares the first area 301a to the fifth area 305a and the color coordinate information of the first area 301a to the fifth area 305a after the first shutter-release button 31 is input.

The photographing direction detecting section 54 detects the photographing direction information according to the comparison result of the comparing section 53. [ 3B shows a first area 301a to a fifth area 305a before the first shutter-release button 31 is input and a first area 301b to a fifth area after the first shutter- 305b), that is, a change in color coordinate information. The first area 301a to the fifth area 305a are moved in the upward / rightward direction when the first area 301a to the fifth area 305a and the first area 301b to the fifth area 305b are compared At this time, the photographing direction detecting unit 54 detects that the photographing direction is the lateral direction.

3C shows a first region 301a to a fifth region 305a before the first shutter-release button 31 is input and a first region 301c to a fifth region 301c after the first shutter- 305c, that is, a change in color coordinate information. In the first area 301a to the fifth area 305a and the first area 301b to the fifth area 305b, the first area 301a before the first shutter- The second area 302a before the first shutter-release button 31 is input into the second area 302c after the first shutter-release button 31 is input is the fourth area after the first shutter- The third area 303a before the first shutter-release button 31 is set to the first area 301c after the first shutter-release button 31 is input and the first shutter-release button 31 The fourth region 304a before the input of the first shutter-release button 31 has moved to the third region 303c after the first shutter-release button 31 is input. At this time, the photographing direction detecting unit 54 detects that the photographing direction is a 90-degree vertical direction.

By using the same method, the photographing direction detecting unit 54 can detect a photographing direction of 270 degrees in the vertical direction and 270 degrees in the horizontal direction.

After the photographing direction is detected, when the second shutter-release button 31 is input by the user, the image storage control unit 55 stores the photographed image. At this time, the image storage control unit 55 stores the detected photographing direction information in a predetermined area of the image file, that is, the Exif file. In the APP1 (application marker segment 1) area of the Exif file, And thumbnail information are recorded, and the shooting direction information is recorded in the thumbnail information area.

The image storage control unit 55 may record the photographing direction information in the thumbnail information area and store it in the direction at the time of photographing the image or change it to the photographing direction detected and store the same. For example, in the case of an image photographed at 90 degrees, it can be changed by 90 degrees and stored.

The image reproduction control section 56 reproduces the image stored by the image storage control section 55 by the user's reproduction instruction. When the image storage control unit 55 stores the images in the direction of the image capturing, the image regeneration control unit 56 detects the capturing direction from the thumbnail information area and changes the capturing direction (in the case of the image captured at 90 degrees, Change) and play it back. When the image storage control unit 55 changes the shooting direction, the image playback control unit 56 plays back the stored image.

As described above, the image capturing direction can be sensed by setting and comparing the area without the gyro sensor, and the captured image can be stored and reproduced according to the sensed direction.

Hereinafter, a digital image processing method according to the present invention will be described in detail with reference to FIGS. 4 and 5. FIG. The digital image processing method according to the present invention can be performed in a digital image processing apparatus as shown in FIG. 1. According to an embodiment, the main algorithm of the operation method is a digital signal processing method, (50). ≪ / RTI > FIG. 4 shows a method of detecting a photographing direction and storing an image, and FIG. 5 shows a method of detecting a photographing direction and storing and reproducing an image.

First, a digital image processing method according to an embodiment will be described with reference to FIG.

The digital signal processing unit 50 displays the live view image on the display unit 80 (step 401).

The digital signal processing unit 50 sets at least one region in the displayed live view image (see FIG. 3A), and extracts the color coordinate information in the set region (Step 403).

When the input of the first shutter-release button 31 is received (step 405), the color coordinate information of the first shutter-release button 31 pre-input area and the color coordinate information of the first shutter- (Step 407), and the photographing direction information is detected according to the comparison result (step 409). The detection of the photographing direction information according to the comparison of the color coordinate information of the setting area is described above, and therefore, it is omitted.

When the second shutter release button 31 is input after the photographing direction information is detected, the digital signal processing unit 50 photographs the image (step 411), and adds the photographing direction information to the thumbnail information area of the generated image file (Step 413).

Thereafter, the digital signal processor 50 changes the direction of the image according to the detected photographing direction and stores it (step 415).

Next, a digital image processing method according to an embodiment will be described with reference to FIG.

The digital signal processing unit 50 displays the live view image on the display unit 80 (step 501).

The digital signal processing unit 50 sets at least one area in the displayed live view image (see FIG. 3A), and extracts the color coordinate information in the set area (step 503).

When the first shutter-release button 31 input is received (step 505), the color coordinate information of the first shutter-release button 31 pre-input area and the color coordinate information of the first shutter- (Step 507), and the photographing direction information is detected according to the comparison result (step 509). The detection of the photographing direction information according to the comparison of the color coordinate information of the setting area is described above, and therefore, it is omitted.

When the second shutter release button 31 is input after the photographing direction information is detected, the digital signal processing unit 50 photographs the image (step 511), and adds the photographing direction information to the thumbnail information area of the generated image file (Step 513).

The digital signal processor 50 stores the image file in two ways (step 515). In the first method, the direction of the image is changed according to the detected shooting direction, and the second method stores the image as it is in the shooting direction .

Thereafter, when a playback button is input by the user in step 517, the digital signal processing unit 50 reproduces the image 519. In the case where the shooting direction is changed and the image is stored, the digital signal processing unit 50 can directly reproduce the image, The photographing direction is changed according to the photographing direction information recorded in the thumbnail information area and is reproduced.

The present invention has been described with reference to the preferred embodiments. 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 an illustrative rather than a restrictive sense. 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.

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

2 is a detailed block diagram of the digital signal processing unit in FIG.

Fig. 3 is a view for explaining the photographing direction change in Fig. 1. Fig.

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

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

Claims (9)

  1. And digital signal processing means for setting at least one region from the photographed image and recognizing a change in the image photographing direction when a change occurs in the color coordinate information of the setting region,
    The digital signal processing means
    An area setting unit for setting at least one area from the image;
    A first detection unit for detecting color coordinate information from the set area;
    A comparison unit comparing the color coordinate information and the color coordinate information of the area at the time of the first shutter-release button input; And
    And a second detecting unit for detecting photographing direction information according to the comparison result.
  2. delete
  3. The method according to claim 1,
    Wherein the detected photographing direction information is stored in a thumbnail information area of the image file.
  4. The method of claim 3,
    Further comprising a video storage control unit for responding to a second shutter-release button input signal to change and store the shooting direction of the video according to the detected shooting direction information, or to store the shot video.
  5. 5. The method of claim 4,
    Further comprising a video reproduction control section for reproducing the stored video with the changed shooting direction or changing the shooting direction using the shooting direction information of the thumbnail information area with respect to the stored video whose shooting direction has not changed, Device.
  6. (a) setting at least one area from the photographed image and detecting color coordinate information of the setting area;
    (b) detecting the photographing direction information by comparing the color coordinate information and the color coordinate information of the area at the time of inputting the first shutter-release button; And
    (c) changing a photographing direction of the image in accordance with the detected photographing direction information in response to a second shutter-release button input signal, and storing the altered photographing direction.
  7. The method according to claim 6,
    Wherein the detected photographing direction information is stored in a thumbnail information area of the image file.
  8. (a) setting at least one area from the photographed image and detecting color coordinate information of the setting area;
    (b) detecting the photographing direction information by comparing the color coordinate information and the color coordinate information of the area at the time of inputting the first shutter-release button;
    (c) changing the shooting direction of the image according to the detected shooting direction information in response to the second shutter-release button input signal, or storing the shot image; And
    (d) reproducing the stored image in which the photographing direction is changed, or changing the photographing direction using the photographing direction information with respect to the stored image whose photographing direction is not changed, and reproducing the stored image.
  9. 9. The method of claim 8,
    Wherein the detected photographing direction information is stored in a thumbnail information area of the image file.
KR1020090044493A 2009-05-21 2009-05-21 Apparatus and method for processing digital image KR101580840B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003046814A (en) 2001-08-02 2003-02-14 Minolta Co Ltd Digital camera and photographing system
JP2007306500A (en) 2006-05-15 2007-11-22 Sanyo Electric Co Ltd Image inclination correction device and image inclination correction method
JP2008172667A (en) 2007-01-15 2008-07-24 Tamron Co Ltd Imaging apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4352916B2 (en) * 2004-02-04 2009-10-28 ソニー株式会社 Imaging apparatus and imaging method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003046814A (en) 2001-08-02 2003-02-14 Minolta Co Ltd Digital camera and photographing system
JP2007306500A (en) 2006-05-15 2007-11-22 Sanyo Electric Co Ltd Image inclination correction device and image inclination correction method
JP2008172667A (en) 2007-01-15 2008-07-24 Tamron Co Ltd Imaging apparatus

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