WO2004014068A1 - Appareil de prise de vue et correcteur d'image - Google Patents

Appareil de prise de vue et correcteur d'image Download PDF

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Publication number
WO2004014068A1
WO2004014068A1 PCT/JP2003/009864 JP0309864W WO2004014068A1 WO 2004014068 A1 WO2004014068 A1 WO 2004014068A1 JP 0309864 W JP0309864 W JP 0309864W WO 2004014068 A1 WO2004014068 A1 WO 2004014068A1
Authority
WO
WIPO (PCT)
Prior art keywords
image
correction
camera
correction value
determination
Prior art date
Application number
PCT/JP2003/009864
Other languages
English (en)
Japanese (ja)
Inventor
Masanori Hasuda
Hidenori Miyamoto
Original Assignee
Nikon Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nikon Corporation filed Critical Nikon Corporation
Priority to AU2003252369A priority Critical patent/AU2003252369A1/en
Priority to JP2004525830A priority patent/JPWO2004014068A1/ja
Publication of WO2004014068A1 publication Critical patent/WO2004014068A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules

Definitions

  • the present invention relates to a camera, and more particularly to a technique for correcting an image captured by a camera.
  • a digital camera adjusts the image expression such as color, contrast, and sharpness of an image obtained by an image sensor such as a CCD using an algorithm unique to the model, and records the corrected image on a recording medium.
  • image expression such as color, contrast, and sharpness of an image obtained by an image sensor such as a CCD using an algorithm unique to the model
  • Each person has their own preference for image power and image expression, so some people may be dissatisfied if they make adjustments using a predetermined algorithm. It is possible to correct various image expression factors according to the user's preference by importing images into a convenience store or the like and using commercially available retouching software. When performing image correction on a computer using retouching software, the work is troublesome. Also, those who are not familiar with computers or retouching methods have had to endure with the camera output image even though they are dissatisfied. Disclosure of the invention
  • a camera includes a discriminating device for discriminating a use area of a camera, and a correction value output device for obtaining and outputting a correction value for correcting an image captured by the camera according to a discrimination result of the discriminating device. . It is desirable that the discriminating device discriminates the use area of the camera based on the language setting of the camera.
  • the image processing apparatus may further include a correction device that corrects the captured image based on the correction value output by the correction output device.
  • a camera includes a display device for displaying information, a discrimination device for discriminating a region where the camera is used, and a change device for changing a display mode of the display device according to a discrimination result of the discrimination device.
  • the image processing apparatus may further include a correction value output device that obtains and outputs a correction value for correcting an image captured by the camera according to a determination result of the determination device.
  • the image correction apparatus includes: (a) storing and accumulating a correction state performed on a captured image; (b) calculating a correction value based on the stored past correction state; ) A control device is provided for correcting a captured image based on the calculated correction value.
  • the image correction method according to the present invention specifies a region and corrects image data according to the result of specifying the region.
  • An image correction method stores and accumulates a correction situation performed on a captured image, calculates a correction value based on the accumulated past correction situation, and, based on the calculated correction value, Correct the newly input captured image.
  • FIG. 1 is a perspective view of a digital still camera according to an embodiment of the present invention as viewed from the back.
  • Figure 2 is a block diagram showing the camera control system.
  • FIG. 3 is a flowchart showing a processing procedure of image processing executed in the CPU.
  • FIG. 4 is a flowchart showing a processing procedure of an image correction process performed in the image correction apparatus.
  • FIG. 1 is a schematic view of a digital still camera according to the present invention as viewed from the back.
  • a power switch 1 and a release button 2 are provided on the top of the camera, and an LCD monitor 3 and operation members 4, 5, and 6 are provided on the back of the camera.
  • the LCD monitor 3 displays a captured image or displays a menu screen.
  • the operation member 4 is a menu button, and instructs display and release of the menu screen on the liquid crystal monitor 3.
  • the operation member 5 is a cross key, and instructs “selection” or “decision” of an item or a numerical value on the menu screen by operating the upper, lower, left and right pressing parts.
  • the operation member 6 is an image correction mode setting button, and the setting and release of the image correction mode are alternately switched each time the operation member 6 is pressed. Details of the image correction mode will be described later.
  • FIG. 2 shows the control system of the camera.
  • the CPU 11 is connected to the operation unit including the power switch 1, the release button 2, the operation members 4, 5, 6, and the like. Further, the CPU 11 is connected to an image processing circuit 12 and a driver 14 for driving the photographing means 13 and the liquid crystal monitor 3.
  • the photographing means 13 includes an image pickup device such as a CCD and a photographing operation member such as a shirt.
  • the CPU 11 includes a nonvolatile memory 11a.
  • the release button 2 is operated at the time of photographing, the transmitted light beam of the photographing lens (not shown) is received by the image sensor of the photographing means 13.
  • the image processing circuit 12 performs a predetermined process on an image signal which is a photoelectric conversion output by the image sensor. These processes include adjusting the image expression such as hue, contrast, saturation, and sharpness of the image, and compressing the image.
  • the above-mentioned image expression such as color tone has a different preference according to cultural differences. Differences in culture can be called differences between countries and regions. For example, in the case of portrait photography, a strong reddish skin color is generally preferred in Japan for the same skin color, but a bluish skin color is preferred in the UK, France and Germany. Regarding sharpness, soft images with weak outline enhancement are preferred in Japan and France, while images with strong edge enhancement are preferred in the United States and Germany. Regarding saturation, images with bright colors tend to be preferred in Italy. In contrast, images with lower contrast are preferred in Japan.
  • the use area of the camera is automatically determined by using the language setting function originally provided in the camera, and the correction amount of each image expression item by the image processing circuit 12 is changed according to the determination result.
  • the language setting is originally intended to enable a camera of the same model to be used in a plurality of languages, and is provided as one of the setting items on the menu screen described above.
  • the user operates the cross key 5 to “select” the user's own language or a favorite language from among multiple languages (Japanese, English, German, etc.)
  • the item names in the menu display are displayed in the selected language.
  • the CPU 11 performs image correction on the captured image according to the selected language as described later. As a result, it is possible to increase the possibility of obtaining an image that matches the camera user's preference.
  • a correction template is stored in the memory 11a at the stage of manufacturing the camera.
  • the plurality of image correction values relate to the above-described hue, contrast, saturation, sharpness, and the like.
  • the correction amounts for R, G, and B corresponding to each language are stored as numerical values.
  • a gamma correction value is stored.
  • a correction value is set in advance so as to provide an image expression preferred in the language area.
  • the specific value of the image correction value may be determined according to the generally known preference of each linguistic sphere, or may be determined based on the result of a new survey for more accuracy. Good.
  • FIG. 3 shows an example of an image processing procedure using a correction table, which is executed in the CPU 11.
  • the image signal output from the image sensor is Once stored in a buffer (not shown). After that, the processing of FIG.
  • step S1 it is determined whether or not the image correction mode has been set.
  • the image correction mode is set by the image correction mode setting button 6 as described above. If the image correction mode is set by operating the image correction mode setting button 6, the selected language in the language setting is determined (step S2). Specifically, the language selected by operating the menu button 4 and the cross key 5 is determined.
  • each image correction value corresponding to the selected language is read out from the correction table in the memory 11a (step S3).
  • the image data read from the buffer is corrected according to the read correction values (step S4).
  • the image data is recorded on a recording medium (not shown) such as a memory card (step S5).
  • the captured image is recorded on the recording medium in step S5 without performing image correction.
  • the selected language in the language setting of the camera is automatically determined, and the captured image is corrected so as to have an image expression generally preferred in the language zone.
  • the corrected image will match the preferences of the people in that language (including the photographer and the viewers who will see the image).
  • it matches your taste there is no need to perform another image processing such as retouching.
  • the user does not have to perform retouching or the like, and a user who is not familiar with the computer-based resetting method can obtain a desired image.
  • the hue, the contrast, the saturation, and the sharpness have been exemplified as the image expression items, other items may be included, or the number of items may be reduced. The easiest way is to make corrections for only one of the items, for example, the hue.
  • the correction value of the image expression item is obtained using the language setting of the camera. However, in addition to the language setting, there are regional modes (Japan mode, US mode, Italian mode, etc.), and when one of the modes is selected, the image is corrected immediately according to the selected mode. Is also good.
  • the position of the camera may be detected using, for example, GPS or the like, and a correction value may be obtained according to the position information. For example, if the camera is located in the United States, it may be configured to select a correction value that provides an image representation preferred in the United States based on recognition that the user is an American.
  • the present invention is also applicable to cameras handling silver halide films.
  • the camera calculates a correction value for the image according to the language setting and the like, and stores the correction value.
  • an image correction device such as a computer captures the captured image converted to digital data overnight, further captures the correction values stored by the camera, and then uses a predetermined software to perform digital image data conversion. One night is corrected with the correction value.
  • the present invention can be applied to a case where image processing is performed on an image taken by a digital still camera over a short period of time. Also in this case, when the image data is read from the digital camera to the computer, the language setting set in the camera or the regional mode is also read. Alternatively, the above-described image processing may be performed on the input image data according to the selected language or the regional mode set on the computer.
  • the correction value of the image is obtained according to the area where the camera is used.
  • an image correction method that grasps the correction tendency of each user based on the correction situation performed in the past and automatically corrects the image based on each user's tendency is also considered.
  • Can be An image correction device having such a function can be realized by incorporating software for causing a computer or the like to perform a function of automatically correcting an image based on the inclination of each user.
  • FIG. 4 is a flowchart illustrating a processing procedure of an image correction process executed by the computer.
  • the manual image correction includes the above-described image expression, that is, adjustment of the hue, contrast, saturation, and sharpness of the image.
  • step S10 the correction status of each correction item, that is, the image expression item when the image data is manually corrected is stored in the memory of the computer.
  • the correction value of each correction item is stored and accumulated in the memory.
  • step S20 a correction value is calculated based on the past correction status stored and stored in the memory. For example, an average of correction values in a plurality of image corrections manually executed in the past is used as a correction value for automatically performing the next image correction.
  • step S30 when a newly captured image is input to the computer, the input image data is automatically corrected using the correction value calculated in step S20.
  • the display mode of the display device may be changed according to the area where the camera is used.
  • the display mode includes, for example, the brightness of the screen, that is, the brightness of the backlight, the use of colors in menus, and the like.
  • the display mode of the liquid crystal monitor 3 is corrected by the correction value set for each area where the camera is used in the correction execution process in step S4 of the flowchart of FIG. At this time, the display mode of the liquid crystal monitor 3 may be corrected, and the image stored in the storage medium may be corrected as described above.
  • the area where the camera is used is determined, and a correction value for correcting the captured image is determined according to the determination result.
  • the display mode of the display device of the camera may be changed according to the use area.
  • the correction status made on the captured image may be stored and accumulated, and the correction value may be calculated based on the accumulated past correction status. If the captured image is corrected based on the calculated correction value, it is possible to increase the possibility that each user's favorite image can be obtained.
  • an example has been described in which an image captured by a digital still camera is corrected according to the area where the camera is used.
  • an image captured by a camera that shoots a moving image can be corrected according to the area where the camera is used.

Abstract

La présente invention concerne un appareil de prise de vue incluant un module d'évaluation permettant d'évaluer une région où l'appareil de prise de vue est utilisé, et un dispositif de production en sortie de valeur de correction servant à calculer et produire en sortie une valeur de correction permettant de corriger une image prise par l'appareil de prise de vue en fonction du résultat de l'évaluation du module d'évaluation.
PCT/JP2003/009864 2002-08-05 2003-08-04 Appareil de prise de vue et correcteur d'image WO2004014068A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003252369A AU2003252369A1 (en) 2002-08-05 2003-08-04 Camera and image correction device
JP2004525830A JPWO2004014068A1 (ja) 2002-08-05 2003-08-04 カメラおよび画像補正装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002-227763 2002-08-05
JP2002227763 2002-08-05

Publications (1)

Publication Number Publication Date
WO2004014068A1 true WO2004014068A1 (fr) 2004-02-12

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PCT/JP2003/009864 WO2004014068A1 (fr) 2002-08-05 2003-08-04 Appareil de prise de vue et correcteur d'image

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JP (1) JPWO2004014068A1 (fr)
AU (1) AU2003252369A1 (fr)
WO (1) WO2004014068A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006180069A (ja) * 2004-12-21 2006-07-06 Casio Comput Co Ltd 撮像装置、画像パラメータ設定方法及びプログラム
JP2007228110A (ja) * 2006-02-22 2007-09-06 Fujifilm Corp デジタルカメラ
JP2012238086A (ja) * 2011-05-10 2012-12-06 Casio Comput Co Ltd 画像処理装置、画像処理方法および画像処理プログラム

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03105331A (ja) * 1989-09-20 1991-05-02 Canon Inc 撮像装置
JPH06121266A (ja) * 1992-10-06 1994-04-28 Canon Inc カメラ一体型レコーダ
JPH1138494A (ja) * 1997-07-17 1999-02-12 Nikon Corp 表示機能を有するカメラ
JP2002247418A (ja) * 2001-02-16 2002-08-30 Casio Comput Co Ltd カメラ装置及びその見本画像表示方法、並びに記録媒体
JP2002262174A (ja) * 2001-03-06 2002-09-13 Olympus Optical Co Ltd 電子カメラシステム、電子カメラ及びその画像処理方法
JP2002300405A (ja) * 2001-03-30 2002-10-11 Fuji Photo Film Co Ltd 画像圧縮方法
JP2003189135A (ja) * 2001-12-19 2003-07-04 Fuji Photo Film Co Ltd デジタルスチルカメラ
JP2003259288A (ja) * 2002-02-28 2003-09-12 Konica Corp 画像処理方法、コンピュータが読取可能な記録媒体、及び画像処理装置
JP2003271944A (ja) * 2002-03-14 2003-09-26 Ricoh Co Ltd 画像処理装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03105331A (ja) * 1989-09-20 1991-05-02 Canon Inc 撮像装置
JPH06121266A (ja) * 1992-10-06 1994-04-28 Canon Inc カメラ一体型レコーダ
JPH1138494A (ja) * 1997-07-17 1999-02-12 Nikon Corp 表示機能を有するカメラ
JP2002247418A (ja) * 2001-02-16 2002-08-30 Casio Comput Co Ltd カメラ装置及びその見本画像表示方法、並びに記録媒体
JP2002262174A (ja) * 2001-03-06 2002-09-13 Olympus Optical Co Ltd 電子カメラシステム、電子カメラ及びその画像処理方法
JP2002300405A (ja) * 2001-03-30 2002-10-11 Fuji Photo Film Co Ltd 画像圧縮方法
JP2003189135A (ja) * 2001-12-19 2003-07-04 Fuji Photo Film Co Ltd デジタルスチルカメラ
JP2003259288A (ja) * 2002-02-28 2003-09-12 Konica Corp 画像処理方法、コンピュータが読取可能な記録媒体、及び画像処理装置
JP2003271944A (ja) * 2002-03-14 2003-09-26 Ricoh Co Ltd 画像処理装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006180069A (ja) * 2004-12-21 2006-07-06 Casio Comput Co Ltd 撮像装置、画像パラメータ設定方法及びプログラム
JP4654677B2 (ja) * 2004-12-21 2011-03-23 カシオ計算機株式会社 撮像装置、画像パラメータ設定方法及びプログラム
JP2007228110A (ja) * 2006-02-22 2007-09-06 Fujifilm Corp デジタルカメラ
JP2012238086A (ja) * 2011-05-10 2012-12-06 Casio Comput Co Ltd 画像処理装置、画像処理方法および画像処理プログラム

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AU2003252369A1 (en) 2004-02-23
JPWO2004014068A1 (ja) 2006-09-21

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