JP2015126455A5

JP2015126455A5 -

Info

Publication number: JP2015126455A5
Application number: JP2013270710A
Authority: JP
Filing date: 2013-12-27
Publication date: 2017-01-26
Anticipated expiration: 2033-12-27

Description

さらには、画像全体に対して色ごとにヒストグラムを取得し、画像が緑、赤、青など、どの色味を帯びているか、判別した色が画面上のどこの領域に集中しているか、を判別し、これらの判別により得られた情報を用いてシーンの特定を行う技術が提案されている（例えば特許文献３）。 In addition, to get the histogram for each color for the entire image, the image is green, red, blue, etc., you are charged with any color, any color that is determined is concentrated anywhere in the area on the screen, the A technique for discriminating and specifying a scene using information obtained by the discrimination is proposed (for example, Patent Document 3).

前記目的を達成するため、本発明に係る撮像装置の一態様は、撮像手段と、前記撮像手段による撮影状況を判定する判定手段と、前記判定手段によって判定された前記撮影状況に基づいて、撮影パラメータを変化させながら前記撮像手段によって撮像された複数の画像を取得する制御手段と、を備える、ことを特徴とする。 In order to achieve the above object, an aspect of an imaging apparatus according to the present invention includes: an imaging unit; a determination unit that determines a shooting situation by the imaging unit; and a shooting based on the shooting situation that is determined by the determination unit. while changing the parameters and a control means for acquiring a plurality of images captured by the imaging means, characterized in that.

また、前記目的を達成するため、本発明に係る制御方法の一態様は、撮像手段を備える撮像装置の制御方法であって、前記撮像手段による撮影状況を判定するステップと、前記判定された前記撮影状況に基づいて、撮影パラメータを変化させながら前記撮像手段によって撮像された複数の画像を取得するステップと、を含む、ことを特徴とする。 In order to achieve the above object, one aspect of the control method according to the present invention is a method for controlling an imaging apparatus including an imaging unit, the step of determining a shooting state by the imaging unit, and the determined based on the shooting conditions, while changing the imaging parameter comprises the steps of: acquiring a plurality of images captured by the imaging means, characterized in that.

また、前記目的を達成するため、本発明に係るプログラムの一態様は、撮像手段を備える撮像装置を制御するコンピュータに、前記撮像手段による撮影状況を判定する機能、前記判定された前記撮影状況に基づいて、撮影パラメータを変化させながら前記撮像手段によって撮像された複数の画像を取得する機能、を実現させる、ことを特徴とする。 In order to achieve the above object, one aspect of the program according to the present invention provides a computer that controls an imaging apparatus including an imaging unit, a function for determining a shooting situation by the imaging unit, and the determined shooting situation. Based on this , it is possible to realize a function of acquiring a plurality of images picked up by the image pickup means while changing the shooting parameters .

Ａ．実施形態の構成
図１は、本発明の実施形態による撮像装置１０の構成を示すブロック図である。図１において、撮像装置１０は、例えば、デジタルカメラからなり、撮像レンズ１１、絞り兼用シャッタ１２、ＣＣＤ１３、ＴＧ（Timing Generator）１４、ユニット回路１５、画像処理部１６、レンズ駆動部１７、ＣＰＵ１８、ＤＲＡＭ１９、メモリ２０、フラッシュメモリ２１、表示部２２、キー入力部２３、カードＩ／Ｆ２４、及びメモリ・カード２５を備えている。 A. Configuration of Embodiment FIG. 1 is a block diagram illustrating a configuration of an imaging apparatus 10 according to an embodiment of the present invention. In FIG. 1 , the imaging device 10 includes, for example, a digital camera, and includes an imaging lens 11, a diaphragm / shutter 12, a CCD 13, a TG (Timing Generator) 14, a unit circuit 15, an image processing unit 16, a lens driving unit 17, a CPU 18, A DRAM 19, a memory 20, a flash memory 21, a display unit 22, a key input unit 23, a card I / F 24, and a memory card 25 are provided.

一方、明るさのパラメータが（−）でない場合には（ステップＳ５８のＮＯ）、明るさのパラメータが（＋）であるということなので、ＣＰＵ１８は、ホワイトバランスの色シフト方向を、シアン−赤方向に、かつシフト補正量を＋５％に設定する（ステップＳ６２）。その後、ＣＰＵ１８は、ＣＣＤ１３で撮影し、撮影した画像に対して、ホワイトバランスの色味を、シアン方向へシフト量（１０％）、標準（０％）、赤方向へシフト量（１０％）で振る画像処理を施し（ブラケット撮影）、さらに、上記ホワイトバランス（シアン−赤、シフト補正量（＋５％））に従って補正処理（色シフト）した後、メモリ・カード２５に保存する（ステップＳ６４）。次に、ＣＰＵ１８は、ブラケット撮影した画像のサムネイルを作成し、表示部２２に表示する（ステップＳ６６）。この場合、色味が標準（シフトなし）の画像を中心とし、シフト量（１５％）でシアン方向へシフトされた画像、シフト量（１５％）で赤方向へシフトされた画像が表示される。その後、図２のステップＳ１２に戻る。 On the other hand, when the brightness parameter is not (−) (NO in step S58), the brightness parameter is (+), so the CPU 18 changes the white balance color shift direction to the cyan-red direction. In addition, the shift correction amount is set to + 5% (step S62). Thereafter, the CPU 18 captures the image with the CCD 13, and with respect to the captured image, the white balance color is shifted in the cyan direction (10%), standard (0%), and shifted in the red direction (10%). Shake image processing is performed (bracketing), and after correction processing (color shift) according to the white balance (cyan - red, shift correction amount (+ 5%)), the image is stored in the memory card 25 (step S64). Next, the CPU 18 creates a thumbnail of the bracketed image and displays it on the display unit 22 (step S66). In this case, an image shifted in the cyan direction by a shift amount (15%) and an image shifted in the red direction by a shift amount (15%) are displayed centering on an image having a standard color (no shift). . Thereafter, the process returns to step S12 in FIG.

一方、明るさのパラメータが（−）でない場合には（ステップＳ７２のＮＯ）、明るさのパラメータが（＋）であるということなので、ＣＰＵ１８は、ホワイトバランスの色シフト方向を、シアン−黄方向に、かつシフト補正量を＋５％に設定する（ステップＳ７６）。その後、ＣＰＵ１８は、ＣＣＤ１３で撮影し、撮影した画像に対して、ホワイトバランスの色味を、シアン方向へシフト量（１０％）、標準（０％）、黄方向へシフト量（１０％）で振る画像処理を施し（ブラケット撮影）、さらに、上記ホワイトバランス（シアン−黄、シフト補正量（＋５％））に従って補正処理（色シフト）した後、メモリ・カード２５に保存する（ステップＳ７８）。次に、ＣＰＵ１８は、ブラケット撮影した画像のサムネイルを作成し、表示部２２に表示する（ステップＳ８０）。この場合、色味が標準（シフトなし）の画像を中心とし、シフト量（１５％）でシアン方向へシフトされた画像、シフト量（１５％）で黄方向へシフトされた画像が表示される。その後、図２のステップＳ１２に戻る。 On the other hand, if the brightness parameter is not (−) (NO in step S72), the brightness parameter is (+), so the CPU 18 changes the white balance color shift direction to the cyan-yellow direction. In addition, the shift correction amount is set to + 5% (step S76). Thereafter, the CPU 18 captures the image with the CCD 13, and with respect to the captured image, the white balance color is shifted in the cyan direction (10%), standard (0%), and shifted in the yellow direction (10%). Shake image processing is performed (bracketing), and after correction processing (color shift) according to the white balance (cyan-yellow, shift correction amount (+ 5%)), the image is stored in the memory card 25 (step S78). Next, the CPU 18 creates a thumbnail of the bracketed image and displays it on the display unit 22 (step S80). In this case, color is centered on the image of the standard (no shift), the shift amount (15%) with the shifted image to the cyan direction, shifted image is displayed at the shift amount (15%) the yellow direction The Thereafter, the process returns to step S12 in FIG.

上述した実施形態によれば、ホワイトバランス関連のブラケット撮影（自在撮影）時、撮影パラメータを固定ではなく、シーン判定、光源判定、明るさ判定の結果に基づいて、ホワイトバランスの色シフト方向や色シフト量を自動で変更することにより、その撮影状況に応じた撮影パラメータを自動で設定することができ、より印象深い画像を撮影することができる。 According to the above-described embodiment , during bracket shooting (white shooting) related to white balance, the shooting parameters are not fixed, but based on the results of scene determination, light source determination, and brightness determination, the color shift direction and color of white balance By automatically changing the shift amount, it is possible to automatically set the shooting parameters according to the shooting situation, and it is possible to take a more impressive image.

なお、上述した実施形態においては、シーン判定、光源判定、明るさ判定の結果等によりホワイトバランスの色シフト方向や色シフト量を変更するようにしたが、これに加えて、撮影状況がローライト（暗所）判定であるか否かを判定するようにしてもよく、ローライトである場合、色シフト量を小さくする。 In the above-described embodiment, the color shift direction and the color shift amount of the white balance are changed depending on the result of the scene determination, the light source determination, the brightness determination, and the like. Whether or not (dark place) is determined may be determined, and in the case of low light, the color shift amount is reduced.

Claims

Imaging means;
Determination means for determining a shooting situation by the imaging means;
Control means for acquiring a plurality of images taken by the imaging means while changing a shooting parameter based on the shooting situation determined by the determination means;
Equipped with a,
An imaging apparatus characterized by that.

The control means changes the color shift direction of white balance at the time of shooting as the shooting parameter based on the shooting situation.
The imaging apparatus according to claim 1.

It said control means, based on the shooting conditions, as the imaging parameters, changing the color shift amount of the white balance and color shift direction of the white balance at the time of shooting,
The imaging apparatus according to claim 1 .

The determination means determines a shooting scene at the time of shooting as the shooting situation,
Wherein, when the photographic scene is determined to be a sunset, as the imaging parameters, changing the color shift direction of the white balance at the time of shooting in the blue direction and magenta directions,
The imaging apparatus according to claim 1.

The determination means determines a shooting scene at the time of shooting as the shooting situation,
Wherein, when the photographic scene is determined to be a night scene, as the imaging parameters, changing the color shift direction of the white balance at the time of shooting in the green direction and red direction,
The imaging apparatus according to claim 1 .

The determination means determines a light source at the time of shooting as the shooting situation,
Wherein, when the light source is determined to be sunlight, as the imaging parameters, changing the color shift direction of the white balance at the time of shooting in the cyan direction and red direction,
The imaging apparatus according to claim 1.

The determination means determines a light source at the time of shooting as the shooting situation,
Wherein if the light source is judged as the fluorescent light, as the imaging parameters, changing the color shift direction of the white balance at the time of shooting in the cyan direction and yellow direction,
The imaging apparatus according to claim 1 .

The determination means determines a light source at the time of shooting as the shooting situation,
The control means, the light source rather than sunlight, and, if it is determined that neither a fluorescent lamp, as the imaging parameters, changing the color shift direction of the white balance at the time of shooting in the blue direction and yellow direction,
The imaging apparatus according to claim 1 .

It said determination means, as the shooting conditions, the brightness at the time of photographing is determined whether larger listening than a predetermined threshold value,
Wherein, when the brightness is determined to a large listening than the predetermined threshold value, as the imaging parameters, by increasing the color shift amount of the white balance at the time of photographing, the brightness is higher than the predetermined threshold If the is determined to be equal to the small again or the predetermined threshold value, to reduce the color shift of white balance at the time of shooting,
The image pickup apparatus according to claim 1, wherein the image pickup apparatus is an image pickup apparatus.

The control means includes
On the basis of the photographing condition determined by the determining means obtains a plurality of images captured by the imaging means while changing a plurality of photographing parameters,
The imaging apparatus according to claim 1.

Of the plurality of photographing parameters, at least one is a white balance at the time of shooting, at least one is a brightness,
Said control means, based on the shooting conditions, with changing the color shift direction of the white balance at the time of the shooting, each said brightness of the acquisition by said plurality of images and large heard than a predetermined threshold value If it is determined, said to increase the color shift amount of the white balance at the time of shooting, when the brightness is determined to be equal to the small again or the predetermined threshold value than the predetermined threshold value, it said at the shooting to reduce the color shift amount of the white balance,
The imaging apparatus according to claim 10.

An image pickup apparatus control method comprising an image pickup means,
Determining a shooting situation by the imaging means;
Acquiring a plurality of images imaged by the imaging means while changing imaging parameters based on the determined imaging situation;
Including,
A control method characterized by that.

In a computer that controls an imaging apparatus including an imaging means,
A function of determining a shooting situation by the imaging means;
A function of acquiring a plurality of images taken by the imaging means while changing a shooting parameter based on the determined shooting situation;
To realize ,
A program characterized by that.