WO2015117397A1 - Picture-taking method, apparatus, and device - Google Patents

Picture-taking method, apparatus, and device Download PDF

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Publication number
WO2015117397A1
WO2015117397A1 PCT/CN2014/089234 CN2014089234W WO2015117397A1 WO 2015117397 A1 WO2015117397 A1 WO 2015117397A1 CN 2014089234 W CN2014089234 W CN 2014089234W WO 2015117397 A1 WO2015117397 A1 WO 2015117397A1
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image
preview image
preview
resolution
exposure level
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PCT/CN2014/089234
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French (fr)
Chinese (zh)
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马亮
胡文迪
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中兴通讯股份有限公司
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Publication of WO2015117397A1 publication Critical patent/WO2015117397A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/743—Bracketing, i.e. taking a series of images with varying exposure conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/741—Circuitry for compensating brightness variation in the scene by increasing the dynamic range of the image compared to the dynamic range of the electronic image sensors

Definitions

  • the present invention relates to the field of photographing, and in particular to a photographing method, device and device.
  • the dynamic range of a digital display device refers to the ratio between the maximum exposure that the device can collect and the minimum exposure that can be distinguished.
  • High dynamic range imaging is a technique used to achieve greater exposure dynamic range than conventional digital image technology.
  • the contrast of human vision is as high as 1:10,000.
  • the human eye can automatically adapt to 6 levels of ambient brightness.
  • most digital pictures use 24 bits to store the brightness and color information of each pixel. This can only contain approximately two levels of brightness range.
  • the continuous development of display technology has made the contrast ratio reach 1:1000, and the demand for high dynamic range images closer to the real world has become more and more prominent.
  • the current mainstream digital high dynamic range picture (hdr) technology requires a low dynamic range picture (ldr) with two or more different exposure values to synthesize a frame of hdr picture by combining different exposure value picture information.
  • Direct use of the captured three-frame image limits the processing speed so that the processing speed is more than three frames.
  • the lack of processing speed makes the hdr technology limited in real-time applications such as video hdr, hdr photo preview, and the like. Therefore, there is a need for a faster processing hdr technology.
  • embodiments of the present invention provide a photographing method, apparatus, and device to reduce the photographing time required for capturing a high dynamic range image.
  • An embodiment of the present invention provides a photographing method for a photographing device, including:
  • Receiving a user photographing instruction acquiring a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level, respectively, and performing a photographing operation at a third exposure level , get a snapshot image;
  • the time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than
  • the second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
  • the resolutions of the first preview image and the second preview image are respectively adjusted to be equal to the resolution of the snapshot image, and the first preview image after the resolution is adjusted and the The second preview image includes:
  • the resolution of the second preview image is adjusted to be equal to the resolution of the snapshot image, and the second preview image after the resolution is adjusted is obtained.
  • the first image upsampling mode is a joint filtering upsampling mode or a hardware upsampling mode
  • the second image upsampling mode is a joint filtering upsampling mode or a hardware upsampling mode
  • the resolution of the first preview image is adjusted to be equal to the resolution of the snapshot image according to the first image upsampling manner, and is adjusted.
  • the first preview image after the resolution includes:
  • the resolution of the second preview image is adjusted to be equal to the resolution of the snapshot image according to the second image upsampling manner, and is adjusted.
  • the second preview image after the resolution includes:
  • the method further comprises:
  • the acquiring the first preview image and the second preview image obtained by performing the preview operation at a first exposure level and a second exposure level respectively include:
  • the first exposure level, the second exposure level, and the third exposure level are an overexposure level, an underexposure level, and a normal exposure level, respectively, according to the snapshot image and the adjusted resolution.
  • the generating the high dynamic range image by the first preview image and the second preview image includes:
  • a frame high dynamic range image is synthesized according to the dark state information, the underexposure information, and the snapshot image.
  • the embodiment of the invention further provides a photographing device for a photographing device, comprising:
  • Obtaining a module configured to acquire a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level respectively when receiving a user photo instruction, and, in a third exposure Perform a photographing operation under the level to obtain a snapshot image;
  • an adjustment module configured to respectively adjust resolutions of the first preview image and the second preview image to be equal to a resolution of the snapshot image, to obtain the first preview image after adjusting the resolution, and the Second preview image;
  • Generating a module configured to generate a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution
  • the time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than
  • the second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
  • the adjustment module comprises:
  • the first adjusting unit is configured to adjust the resolution of the first preview image to be equal to the resolution of the snapshot image according to the first image upsampling manner, to obtain the first preview image after adjusting the resolution;
  • the second adjusting unit is configured to adjust the resolution of the second preview image to be equal to the resolution of the snapshot image according to the second image upsampling manner, to obtain the second preview image after the resolution is adjusted.
  • the first image upsampling mode is a joint filtering upsampling mode or a hardware upsampling mode
  • the second image upsampling mode is a joint filtering upsampling mode or a hardware upsampling mode
  • the first adjusting unit When the first image upsampling mode is the joint filtering upsampling mode, the first adjusting unit includes:
  • the first upsampling subunit is configured to perform joint filtering upsampling on the first preview image according to the snapshot image to obtain the first preview image after the adjusted resolution;
  • the second adjusting unit includes:
  • the second upsampling subunit is configured to perform joint filtering upsampling on the second preview image according to the snapshot image to obtain the second preview image after the adjusted resolution.
  • the method further comprises:
  • a preview module configured to perform a preview operation at a first exposure level and a second exposure level, respectively, to obtain the first preview image and the second preview image, and to obtain the first preview image and the first
  • the second preview image is cached in a cache space
  • the obtaining module includes:
  • An extracting unit configured to extract the first preview image and the second preview image from the cache space.
  • the first exposure level, the second exposure level, and the third exposure level are respectively an overexposure level, an underexposure level, and a normal exposure level
  • the generating module includes:
  • a frame high dynamic range image is synthesized according to the dark state information, the underexposure information, and the snapshot image.
  • the embodiment of the invention further provides a photographing device, comprising a photographing device, wherein the photographing device is set as:
  • Receiving a user photographing instruction acquiring a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level, respectively, and performing a photographing operation at a third exposure level , get a snapshot image;
  • the time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than
  • the second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
  • FIG. 1 is a flow chart showing the steps of a photographing method according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram showing a three-frame preview exposure setting according to a preferred embodiment of the present invention.
  • FIG. 3 is a flow chart showing the modular operation of the device corresponding to FIG. 2 according to a preferred embodiment of the present invention
  • FIG. 4 is a block diagram showing a modularization of a synthesized hdr picture according to a preferred embodiment of the present invention
  • FIG. 5A shows an implementation of an upsampled preview picture in accordance with a preferred embodiment of the present invention
  • FIG. 5B shows another implementation of the upsampled preview picture of the preferred embodiment of the present invention
  • FIG. 6 is a structural block diagram of a photographing apparatus according to an embodiment of the present invention.
  • FIG. 1 is a flow chart showing the steps of a photographing method according to an embodiment of the present invention.
  • an embodiment of the present invention provides a photographing method, including the following steps:
  • Step 101 Acquire a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level respectively when receiving a user photographing instruction, and at a third exposure level Perform a photographing operation to obtain a snapshot image;
  • Step 102 Adjust the resolutions of the first preview image and the second preview image to be equal to the resolution of the snapshot image, and obtain the first preview image and the second after adjusting the resolution.
  • Step 103 Generate a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution.
  • the time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than
  • the second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
  • the photographing method is used for a photographing device.
  • the resolution of the preview image may be lower than the resolution of the snapshot image.
  • the first exposure level, the second exposure level, and the third exposure level may be an overexposure level, an underexposure level, and a normal exposure level, respectively, according to the snapshot image and the adjusted resolution.
  • the generating the high dynamic range image by the first preview image and the second preview image may include:
  • a frame high dynamic range image is synthesized according to the dark state information, the underexposure information, and the snapshot image.
  • the resolutions of the first preview image and the second preview image are respectively adjusted to be equal to the resolution of the snapshot image, and the first preview image after the resolution is adjusted is obtained.
  • the second preview image may include:
  • the resolution of the second preview image is adjusted to be equal to the resolution of the snapshot image, and the second preview image after the resolution is adjusted is obtained.
  • the first image upsampling mode may be a joint filtering upsampling mode or a hardware upsampling mode
  • the second image upsampling mode may be a joint filtering upsampling mode or a hardware upsampling mode
  • the resolution of the first preview image is adjusted to be equal to the resolution of the snapshot image according to the first image upsampling manner, and is adjusted.
  • the first preview image after the resolution may include:
  • the resolution of the second preview image is adjusted to be equal to the resolution of the snapshot image according to the second image upsampling manner, and is adjusted.
  • the second preview image after the resolution may include:
  • the method may further include:
  • the acquiring the first preview image and the second preview image obtained by performing the preview operation at a first exposure level and a second exposure level respectively include:
  • the preferred embodiment provides a new fast high dynamic range (HDR) photographing implementation, which uses two frames of preview information for upsampling interpolation and one frame of photo information to synthesize hdr photos. Compared with traditional hdr photographing, this scheme saves two frames of photographing time.
  • HDR high dynamic range
  • the preferred embodiment proposes a technique for synthesizing hdr pictures by using differently exposed low resolution preview information by upsampling and high resolution photo information.
  • the preferred embodiment relates to, but is not limited to, a digital photography product, and more particularly to a mobile phone camera hdr camera technology and a mobile phone picture upsampling technique.
  • Interpolating low-resolution images into high-resolution images by image upsampling is already a mature technology. For example, use bilinear, trilinear interpolation, or joint filtering sampling techniques that use similar image information interpolation.
  • FIG. 2 is a schematic diagram of a three-frame preview exposure setting according to a preferred embodiment of the present invention.
  • different exposure levels in the hdr shooting mode are set, and a preview exposure format is three frames, wherein one frame is a normal exposure.
  • the other two frames are exposed with different exposure parameters to obtain preview images in overexposure and underexposure modes.
  • FIG. 3 is a flow chart showing the modular operation of the device corresponding to FIG. 2 according to the preferred embodiment of the present invention.
  • the over-exposed and under-exposed preview images are passed through. Sampling, obtaining the same size image as the image taken in the normal exposure, and extracting the dark state information in the overexposed image from the obtained three frames, extracting the underexposure information in the underexposed image, and synthesizing with the normal exposure image One frame hdr image.
  • the hdr photo synthesis process shows that the preferred embodiment can be well compatible with the mainstream digital hdr device, and only needs to be added to the preview upsampling process, and the obtained image can be directly sent to the ordinary hdr processing module. Hdr image synthesis.
  • two implementations of the upsampling algorithm are used for preview interpolation by using a joint filtering upsampling algorithm and a hardware upsampling scheme using a snapshot.
  • the preferred embodiment is applied to the hdr module as a fast hdr camera.
  • the implementation mode is as follows: after the fast hdr mode is started, the application layer receives the photo button command and confirms that the af information is accurate, and then transmits the message to the hdr module, preview
  • the hdr format shown in FIG. 2 is started, that is, different exposures are performed for several frames, and the obtained preview images of Lv2 (level 2, exposure level 2) and Lv-2 (level-2, exposure level-2) are upsampled and Under normal exposure (Lv0, level0, exposure level 0), the snapshot image is sent to the hdr processing module, and a frame of hdr image is displayed and saved.
  • the flow is shown in FIG. 3.
  • the preferred embodiment is applicable to: a technique of upsampling a smaller resolution image into a large resolution image, and performing a multiframe synthesis hdr image; and using the preview information of the captured image to upsample the hdr technology as an hdr input image; Under different exposure conditions, a technique of performing hdr synthesis using an upsampled preview image and a photographed image as an hdr input is used.
  • FIG. 6 is a block diagram showing the structure of a photographing apparatus according to an embodiment of the present invention.
  • an embodiment of the present invention provides a photographing apparatus, including:
  • the obtaining module 601 is configured to: when receiving the user photographing instruction, acquire a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level, respectively, and in a third Performing a photographing operation under the exposure level to obtain a snapshot image;
  • the adjusting module 602 is configured to adjust the resolutions of the first preview image and the second preview image to be equal to the resolution of the snapshot image, respectively, to obtain the first preview image and the adjusted image after the resolution is adjusted. Depicting a second preview image;
  • the generating module 603 is configured to generate a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution;
  • the time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than
  • the second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
  • the photographing device is used for a photographing device.
  • the adjustment module 602 can include:
  • the first adjusting unit is configured to adjust the resolution of the first preview image to be equal to the resolution of the snapshot image according to the first image upsampling manner, to obtain the first preview image after adjusting the resolution;
  • the second adjusting unit is configured to adjust the resolution of the second preview image to be equal to the resolution of the snapshot image according to the second image upsampling manner, to obtain the second preview image after the resolution is adjusted.
  • the first image upsampling mode may be a joint filtering upsampling mode or a hardware upsampling mode
  • the second image upsampling mode may be a joint filtering upsampling mode or a hardware upsampling mode
  • the first adjusting unit may include:
  • the first upsampling subunit is configured to perform joint filtering upsampling on the first preview image according to the snapshot image to obtain the first preview image after the adjusted resolution;
  • the second adjusting unit may include:
  • the second upsampling subunit is configured to perform joint filtering upsampling on the second preview image according to the snapshot image to obtain the second preview image after the adjusted resolution.
  • the method may further include:
  • a preview module configured to perform a preview operation at a first exposure level and a second exposure level, respectively, to obtain the first preview image and the second preview image, and to obtain the first preview image and the first
  • the second preview image is cached in a cache space
  • the obtaining module 601 includes:
  • An extracting unit configured to extract the first preview image and the second preview image from the cache space.
  • the generating module 603 may include:
  • a frame high dynamic range image is synthesized according to the dark state information, the underexposure information, and the snapshot image.
  • the embodiment of the invention further provides a photographing device, wherein the photographing device comprises a photographing device, and the photographing device is set as:
  • Receiving a user photographing instruction acquiring a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level, respectively, and performing a photographing operation at a third exposure level , get a snapshot image;
  • the time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than
  • the second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
  • the photographing method, apparatus, and device provided by the embodiments of the present invention have the following beneficial effects: by increasing the resolution of the preview image, only a high-resolution image of one frame can be captured to obtain a high dynamic range image. Compared with the prior art, it is necessary to take three frames of images, which saves two frames of photographing time.

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Abstract

Embodiments of the present application provide a picture-taking method, apparatus, and device. The method comprises: upon receiving a user take-picture command, acquiring a first preview image and a second preview image obtained by executing a preview operation at a first exposure level and at a second exposure level, respectively, and then obtaining a snap-shot image by executing a take-picture operation at a third exposure level; adjusting the resolution of the first preview image and of the second preview image to a resolution equal to that of the snapshot image, and obtaining a resolution-adjusted first preview image and a resolution-adjusted second preview image; and generating a high dynamic range image on the basis of the snapshot image, the resolution-adjusted first preview image, and the resolution-adjusted second preview image. Embodiments of the present invention reduce the time required to take a picture when capturing high dynamic range images.

Description

一种拍照方法、装置及设备Photographing method, device and device 技术领域Technical field
本发明涉及拍照领域，尤其涉及一种拍照方法、装置及设备。The present invention relates to the field of photographing, and in particular to a photographing method, device and device.
背景技术Background technique
数字显示设备的动态范围是指设备能收集的最大曝光于可以区别的最小曝光之间的比率。高动态范围成像是用来实现比普通数位图像技术更大曝光动态范围的一种技术。人类视觉的对比度高达1：10,000。并且，人眼可以自动适应6个等级的环境亮度。与之相对，大部分的数码图片使用24bit储存每个像素的亮度与色彩信息。这样只能包含大约两个等级的亮度范围。但是近年来，显示技术的不断发展，使得对比度已经可达到1：1000左右，人们对更接近现实世界的高动态范围图像的需求越来越凸显。The dynamic range of a digital display device refers to the ratio between the maximum exposure that the device can collect and the minimum exposure that can be distinguished. High dynamic range imaging is a technique used to achieve greater exposure dynamic range than conventional digital image technology. The contrast of human vision is as high as 1:10,000. Moreover, the human eye can automatically adapt to 6 levels of ambient brightness. In contrast, most digital pictures use 24 bits to store the brightness and color information of each pixel. This can only contain approximately two levels of brightness range. However, in recent years, the continuous development of display technology has made the contrast ratio reach 1:1000, and the demand for high dynamic range images closer to the real world has become more and more prominent.
但是，目前主流的数字高动态范围图片(hdr)技术需要使用两帧以上不同曝光值的低动态范围图片(ldr)，通过结合不同曝光值图片信息合成一帧hdr图片。直接使用抓取的三帧图片限制了处理速度，使得处理速度在抓取三帧时间以上。处理速度上的不足使得hdr技术在实时性比如视频hdr，hdr拍照预览等应用上受到限制。因此，需要一种处理速度更快的hdr技术。However, the current mainstream digital high dynamic range picture (hdr) technology requires a low dynamic range picture (ldr) with two or more different exposure values to synthesize a frame of hdr picture by combining different exposure value picture information. Direct use of the captured three-frame image limits the processing speed so that the processing speed is more than three frames. The lack of processing speed makes the hdr technology limited in real-time applications such as video hdr, hdr photo preview, and the like. Therefore, there is a need for a faster processing hdr technology.
发明内容Summary of the invention
有鉴于此，本发明实施例提供了一种拍照方法、装置及设备，以减少拍摄高动态范围图像所需的拍照时间。In view of this, embodiments of the present invention provide a photographing method, apparatus, and device to reduce the photographing time required for capturing a high dynamic range image.
为解决上述技术问题，本发明实施例提供方案如下：To solve the above technical problem, the solution provided by the embodiment of the present invention is as follows:
本发明实施例提供一种拍照方法，用于一拍照设备，包括：An embodiment of the present invention provides a photographing method for a photographing device, including:
在接收到用户拍照指令时，获取分别在一第一曝光等级和一第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像，并且，在一第三曝光等级下执行拍照操作，得到一快照图像；Receiving a user photographing instruction, acquiring a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level, respectively, and performing a photographing operation at a third exposure level , get a snapshot image;
分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像； Adjusting the resolutions of the first preview image and the second preview image to be equal to the resolution of the snapshot image, respectively, to obtain the first preview image and the second preview image after adjusting the resolution;
根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像；Generating a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution;
其中，在所述第一曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第一设定时间间隔，在所述第二曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第二设定时间间隔，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级各不相同。The time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than The second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
优选地，所述分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像包括：Preferably, the resolutions of the first preview image and the second preview image are respectively adjusted to be equal to the resolution of the snapshot image, and the first preview image after the resolution is adjusted and the The second preview image includes:
按照第一图像上采样方式，将所述第一预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像；Adjusting the resolution of the first preview image to be equal to the resolution of the snapshot image according to the first image upsampling manner, and obtaining the first preview image after adjusting the resolution;
按照第二图像上采样方式，将所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第二预览图像。According to the second image upsampling method, the resolution of the second preview image is adjusted to be equal to the resolution of the snapshot image, and the second preview image after the resolution is adjusted is obtained.
优选地，所述第一图像上采样方式为联合滤波上采样方式或硬件上采样方式，所述第二图像上采样方式为联合滤波上采样方式或硬件上采样方式；Preferably, the first image upsampling mode is a joint filtering upsampling mode or a hardware upsampling mode, and the second image upsampling mode is a joint filtering upsampling mode or a hardware upsampling mode;
所述第一图像上采样方式为联合滤波上采样方式时，所述按照第一图像上采样方式，将所述第一预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像包括：When the first image upsampling mode is the joint filtering upsampling mode, the resolution of the first preview image is adjusted to be equal to the resolution of the snapshot image according to the first image upsampling manner, and is adjusted. The first preview image after the resolution includes:
根据所述快照图像，将所述第一预览图像进行联合滤波上采样，得到所述调整分辨率后的第一预览图像；And performing, according to the snapshot image, performing joint filtering upsampling on the first preview image to obtain the first preview image after the adjusted resolution;
所述第二图像上采样方式为联合滤波上采样方式时，所述按照第二图像上采样方式，将所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第二预览图像包括：When the second image upsampling mode is the joint filtering upsampling mode, the resolution of the second preview image is adjusted to be equal to the resolution of the snapshot image according to the second image upsampling manner, and is adjusted. The second preview image after the resolution includes:
根据所述快照图像，将所述第二预览图像进行联合滤波上采样，得到所述调整分辨率后的第二预览图像。And performing, according to the snapshot image, performing joint filtering upsampling on the second preview image to obtain the second preview image after the adjusted resolution.
优选地，还包括： Preferably, the method further comprises:
分别在一第一曝光等级和一第二曝光等级下执行预览操作，得到所述第一预览图像和所述第二预览图像，并将所述第一预览图像和所述第二预览图像缓存到一缓存空间中；Performing a preview operation at a first exposure level and a second exposure level, respectively, obtaining the first preview image and the second preview image, and buffering the first preview image and the second preview image to In a cache space;
所述获取分别在一第一曝光等级和一第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像包括：The acquiring the first preview image and the second preview image obtained by performing the preview operation at a first exposure level and a second exposure level respectively include:
从所述缓存空间中提取出所述第一预览图像和所述第二预览图像。Extracting the first preview image and the second preview image from the cache space.
优选地，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级分别为过曝光等级、欠曝光等级和正常曝光等级，所述根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像包括：Preferably, the first exposure level, the second exposure level, and the third exposure level are an overexposure level, an underexposure level, and a normal exposure level, respectively, according to the snapshot image and the adjusted resolution. The generating the high dynamic range image by the first preview image and the second preview image includes:
提取所述第一预览图像中的暗态信息和所述第二预览图像中的欠曝光信息；Extracting dark state information in the first preview image and underexposure information in the second preview image;
根据所述暗态信息、所述欠曝光信息和所述快照图像，合成一帧高动态范围图像。A frame high dynamic range image is synthesized according to the dark state information, the underexposure information, and the snapshot image.
本发明实施例还提供一种拍照装置，用于一拍照设备，包括：The embodiment of the invention further provides a photographing device for a photographing device, comprising:
获取模块，设置为在接收到用户拍照指令时，获取分别在一第一曝光等级和一第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像，并且，在一第三曝光等级下执行拍照操作，得到一快照图像；Obtaining a module, configured to acquire a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level respectively when receiving a user photo instruction, and, in a third exposure Perform a photographing operation under the level to obtain a snapshot image;
调整模块，设置为分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像；And an adjustment module, configured to respectively adjust resolutions of the first preview image and the second preview image to be equal to a resolution of the snapshot image, to obtain the first preview image after adjusting the resolution, and the Second preview image;
生成模块，设置为根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像；Generating a module, configured to generate a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution;
其中，在所述第一曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第一设定时间间隔，在所述第二曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第二设定时间间隔，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级各不相同。The time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than The second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
优选地，所述调整模块包括：Preferably, the adjustment module comprises:
第一调整单元，设置为按照第一图像上采样方式，将所述第一预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像； The first adjusting unit is configured to adjust the resolution of the first preview image to be equal to the resolution of the snapshot image according to the first image upsampling manner, to obtain the first preview image after adjusting the resolution;
第二调整单元，设置为按照第二图像上采样方式，将所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第二预览图像。The second adjusting unit is configured to adjust the resolution of the second preview image to be equal to the resolution of the snapshot image according to the second image upsampling manner, to obtain the second preview image after the resolution is adjusted.
优选地，所述第一图像上采样方式为联合滤波上采样方式或硬件上采样方式，所述第二图像上采样方式为联合滤波上采样方式或硬件上采样方式；Preferably, the first image upsampling mode is a joint filtering upsampling mode or a hardware upsampling mode, and the second image upsampling mode is a joint filtering upsampling mode or a hardware upsampling mode;
所述第一图像上采样方式为联合滤波上采样方式时，所述第一调整单元包括：When the first image upsampling mode is the joint filtering upsampling mode, the first adjusting unit includes:
第一上采样子单元，设置为根据所述快照图像，将所述第一预览图像进行联合滤波上采样，得到所述调整分辨率后的第一预览图像；The first upsampling subunit is configured to perform joint filtering upsampling on the first preview image according to the snapshot image to obtain the first preview image after the adjusted resolution;
所述第二图像上采样方式为联合滤波上采样方式时，所述第二调整单元包括：When the second image upsampling mode is the joint filtering upsampling mode, the second adjusting unit includes:
第二上采样子单元，设置为根据所述快照图像，将所述第二预览图像进行联合滤波上采样，得到所述调整分辨率后的第二预览图像。The second upsampling subunit is configured to perform joint filtering upsampling on the second preview image according to the snapshot image to obtain the second preview image after the adjusted resolution.
优选地，还包括：Preferably, the method further comprises:
预览模块，设置为分别在一第一曝光等级和一第二曝光等级下执行预览操作，得到所述第一预览图像和所述第二预览图像，并将所述第一预览图像和所述第二预览图像缓存到一缓存空间中；a preview module configured to perform a preview operation at a first exposure level and a second exposure level, respectively, to obtain the first preview image and the second preview image, and to obtain the first preview image and the first The second preview image is cached in a cache space;
所述获取模块包括：The obtaining module includes:
提取单元，设置为从所述缓存空间中提取出所述第一预览图像和所述第二预览图像。An extracting unit configured to extract the first preview image and the second preview image from the cache space.
优选地，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级分别为过曝光等级、欠曝光等级和正常曝光等级，所述生成模块包括：Preferably, the first exposure level, the second exposure level, and the third exposure level are respectively an overexposure level, an underexposure level, and a normal exposure level, and the generating module includes:
提取所述第一预览图像中的暗态信息和所述第二预览图像中的欠曝光信息；Extracting dark state information in the first preview image and underexposure information in the second preview image;
根据所述暗态信息、所述欠曝光信息和所述快照图像，合成一帧高动态范围图像。A frame high dynamic range image is synthesized according to the dark state information, the underexposure information, and the snapshot image.
本发明实施例还提供一种拍照设备，包括一拍照装置，所述拍照装置设置为：The embodiment of the invention further provides a photographing device, comprising a photographing device, wherein the photographing device is set as:
在接收到用户拍照指令时，获取分别在一第一曝光等级和一第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像，并且，在一第三曝光等级下执行拍照操作，得到一快照图像； Receiving a user photographing instruction, acquiring a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level, respectively, and performing a photographing operation at a third exposure level , get a snapshot image;
分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像；Adjusting the resolutions of the first preview image and the second preview image to be equal to the resolution of the snapshot image, respectively, to obtain the first preview image and the second preview image after adjusting the resolution;
根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像；Generating a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution;
其中，在所述第一曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第一设定时间间隔，在所述第二曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第二设定时间间隔，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级各不相同。The time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than The second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
从以上所述可以看出，本发明实施例至少具有如下有益效果：As can be seen from the above, the embodiments of the present invention have at least the following beneficial effects:
通过调高预览图像的分辨率，从而只需要拍摄一帧高分辨率图像就能得到高动态范围图像，与现有技术中需要拍摄三帧图像相比，节省了两帧拍照时间。By increasing the resolution of the preview image, only a high-resolution image of one frame can be captured to obtain a high-dynamic range image, which saves two frames of photographing time compared with the prior art in which three frames of images are required.
附图说明DRAWINGS
图1表示本发明实施例提供的一种拍照方法的步骤流程图；FIG. 1 is a flow chart showing the steps of a photographing method according to an embodiment of the present invention;
图2表示本发明实施例的较佳实施方式的三帧预览曝光设置示意图；2 is a schematic diagram showing a three-frame preview exposure setting according to a preferred embodiment of the present invention;
图3表示本发明实施例的较佳实施方式的与图2对应的设备模块化操作的流程图；3 is a flow chart showing the modular operation of the device corresponding to FIG. 2 according to a preferred embodiment of the present invention;
图4表示本发明实施例的较佳实施方式的合成hdr图片的模块化流程图；4 is a block diagram showing a modularization of a synthesized hdr picture according to a preferred embodiment of the present invention;
图5A表示本发明实施例的较佳实施方式的上采样预览图片的一种实现；FIG. 5A shows an implementation of an upsampled preview picture in accordance with a preferred embodiment of the present invention; FIG.
图5B表示本发明实施例的较佳实施方式的上采样预览图片的另一种实现；FIG. 5B shows another implementation of the upsampled preview picture of the preferred embodiment of the present invention; FIG.
图6表示本发明实施例提供的一种拍照装置的结构框图。FIG. 6 is a structural block diagram of a photographing apparatus according to an embodiment of the present invention.
具体实施方式detailed description
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合附图及具体实施例对本发明实施例进行详细描述。The embodiments of the present invention will be described in detail below with reference to the drawings and specific embodiments.
图1表示本发明实施例提供的一种拍照方法的步骤流程图，参照图1，本发明实施例提供一种拍照方法，包括如下步骤： FIG. 1 is a flow chart showing the steps of a photographing method according to an embodiment of the present invention. Referring to FIG. 1 , an embodiment of the present invention provides a photographing method, including the following steps:
步骤101，在接收到用户拍照指令时，获取分别在一第一曝光等级和一第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像，并且，在一第三曝光等级下执行拍照操作，得到一快照图像；Step 101: Acquire a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level respectively when receiving a user photographing instruction, and at a third exposure level Perform a photographing operation to obtain a snapshot image;
步骤102，分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像；Step 102: Adjust the resolutions of the first preview image and the second preview image to be equal to the resolution of the snapshot image, and obtain the first preview image and the second after adjusting the resolution. Preview image
步骤103，根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像；Step 103: Generate a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution.
其中，在所述第一曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第一设定时间间隔，在所述第二曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第二设定时间间隔，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级各不相同。The time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than The second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
所述拍照方法用于一拍照设备。The photographing method is used for a photographing device.
可见，通过调高预览图像的分辨率，从而只需要拍摄一帧高分辨率图像就能得到高动态范围图像，与现有技术中需要拍摄三帧图像相比，节省了两帧拍照时间。It can be seen that by increasing the resolution of the preview image, only a high-resolution image of one frame can be captured to obtain a high dynamic range image, which saves two frames of photographing time compared with the prior art in which three frames of images are required.
其中，预览图像的分辨率可以低于快照图像的分辨率。The resolution of the preview image may be lower than the resolution of the snapshot image.
所述第一曝光等级、所述第二曝光等级和所述第三曝光等级分别可以为过曝光等级、欠曝光等级和正常曝光等级，所述根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像可以包括：The first exposure level, the second exposure level, and the third exposure level may be an overexposure level, an underexposure level, and a normal exposure level, respectively, according to the snapshot image and the adjusted resolution. The generating the high dynamic range image by the first preview image and the second preview image may include:
提取所述第一预览图像中的暗态信息和所述第二预览图像中的欠曝光信息；Extracting dark state information in the first preview image and underexposure information in the second preview image;
根据所述暗态信息、所述欠曝光信息和所述快照图像，合成一帧高动态范围图像。A frame high dynamic range image is synthesized according to the dark state information, the underexposure information, and the snapshot image.
本发明实施例中，所述分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像可以包括：In the embodiment of the present invention, the resolutions of the first preview image and the second preview image are respectively adjusted to be equal to the resolution of the snapshot image, and the first preview image after the resolution is adjusted is obtained. And the second preview image may include:
按照第一图像上采样方式，将所述第一预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像；Adjusting the resolution of the first preview image to be equal to the resolution of the snapshot image according to the first image upsampling manner, and obtaining the first preview image after adjusting the resolution;
按照第二图像上采样方式，将所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第二预览图像。 According to the second image upsampling method, the resolution of the second preview image is adjusted to be equal to the resolution of the snapshot image, and the second preview image after the resolution is adjusted is obtained.
其中，所述第一图像上采样方式可以为联合滤波上采样方式或硬件上采样方式，所述第二图像上采样方式可以为联合滤波上采样方式或硬件上采样方式；The first image upsampling mode may be a joint filtering upsampling mode or a hardware upsampling mode, and the second image upsampling mode may be a joint filtering upsampling mode or a hardware upsampling mode;
所述第一图像上采样方式为联合滤波上采样方式时，所述按照第一图像上采样方式，将所述第一预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像可以包括：When the first image upsampling mode is the joint filtering upsampling mode, the resolution of the first preview image is adjusted to be equal to the resolution of the snapshot image according to the first image upsampling manner, and is adjusted. The first preview image after the resolution may include:
根据所述快照图像，将所述第一预览图像进行联合滤波上采样，得到所述调整分辨率后的第一预览图像；And performing, according to the snapshot image, performing joint filtering upsampling on the first preview image to obtain the first preview image after the adjusted resolution;
所述第二图像上采样方式为联合滤波上采样方式时，所述按照第二图像上采样方式，将所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第二预览图像可以包括：When the second image upsampling mode is the joint filtering upsampling mode, the resolution of the second preview image is adjusted to be equal to the resolution of the snapshot image according to the second image upsampling manner, and is adjusted. The second preview image after the resolution may include:
根据所述快照图像，将所述第二预览图像进行联合滤波上采样，得到所述调整分辨率后的第二预览图像。And performing, according to the snapshot image, performing joint filtering upsampling on the second preview image to obtain the second preview image after the adjusted resolution.
本发明实施例中，还可以包括：In this embodiment of the present invention, the method may further include:
分别在一第一曝光等级和一第二曝光等级下执行预览操作，得到所述第一预览图像和所述第二预览图像，并将所述第一预览图像和所述第二预览图像缓存到一缓存空间中；Performing a preview operation at a first exposure level and a second exposure level, respectively, obtaining the first preview image and the second preview image, and buffering the first preview image and the second preview image to In a cache space;
所述获取分别在一第一曝光等级和一第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像包括：The acquiring the first preview image and the second preview image obtained by performing the preview operation at a first exposure level and a second exposure level respectively include:
从所述缓存空间中提取出所述第一预览图像和所述第二预览图像。Extracting the first preview image and the second preview image from the cache space.
为将本发明实施例阐述得更加清楚明白，下面提供本发明实施例的较佳实施方式。In order to make the embodiments of the present invention more clearly understood, the preferred embodiments of the embodiments of the present invention are provided below.
本较佳实施方式提供一种新的快速高动态范围(hdr)拍照实现，利用两帧预览信息进行上采样插值与一帧拍照信息合成hdr照片。与传统hdr拍照相比，该方案节省了两帧拍照时间。The preferred embodiment provides a new fast high dynamic range (HDR) photographing implementation, which uses two frames of preview information for upsampling interpolation and one frame of photo information to synthesize hdr photos. Compared with traditional hdr photographing, this scheme saves two frames of photographing time.
本较佳实施方式提出将不同曝光的低分辨率预览信息通过上采样与高分辨率的拍照信息合成hdr图片的技术。The preferred embodiment proposes a technique for synthesizing hdr pictures by using differently exposed low resolution preview information by upsampling and high resolution photo information.
本较佳实施方式涉及(但不限于)数码拍摄产品，特别涉及手机camera hdr拍照技术与手机图片上采样插值技术。 The preferred embodiment relates to, but is not limited to, a digital photography product, and more particularly to a mobile phone camera hdr camera technology and a mobile phone picture upsampling technique.
通过图像上采样将低分辨率图像插值为高分辨率图像已经是一种比较成熟的技术。如使用双线性、三线性插值，或者使用相近图像信息插值的联合滤波采样技术。Interpolating low-resolution images into high-resolution images by image upsampling is already a mature technology. For example, use bilinear, trilinear interpolation, or joint filtering sampling techniques that use similar image information interpolation.
图2表示本发明实施例的较佳实施方式的三帧预览曝光设置示意图，参照图2，设置hdr拍摄模式中不同的曝光等级，预览(preview)曝光格式为三帧，其中一帧为正常曝光，另外两帧用不同曝光参数曝光，获取过曝和欠曝模式下的preview图像。2 is a schematic diagram of a three-frame preview exposure setting according to a preferred embodiment of the present invention. Referring to FIG. 2, different exposure levels in the hdr shooting mode are set, and a preview exposure format is three frames, wherein one frame is a normal exposure. The other two frames are exposed with different exposure parameters to obtain preview images in overexposure and underexposure modes.
图3表示本发明实施例的较佳实施方式的与图2对应的设备模块化操作的流程图，如图3所示，在hdr照片拍摄全流程中，过曝光与欠曝光的preview图像通过上采样，得到与在正常曝光中拍摄的图像相同大小的图像，再从所得到的三帧图像中，提取过曝光图片中暗态信息，提取欠曝图像中欠曝光信息，再与正常曝光图像合成一帧hdr图像。3 is a flow chart showing the modular operation of the device corresponding to FIG. 2 according to the preferred embodiment of the present invention. As shown in FIG. 3, in the whole process of hdr photo shooting, the over-exposed and under-exposed preview images are passed through. Sampling, obtaining the same size image as the image taken in the normal exposure, and extracting the dark state information in the overexposed image from the obtained three frames, extracting the underexposure information in the underexposed image, and synthesizing with the normal exposure image One frame hdr image.
如图4所示为hdr照片合成过程，可见，本较佳实施方式可以很好的与主流数字hdr设备兼容，只需加入preview上采样处理，所得到的图像可以直接送到普通hdr处理模块进行hdr图像合成。As shown in FIG. 4, the hdr photo synthesis process shows that the preferred embodiment can be well compatible with the mainstream digital hdr device, and only needs to be added to the preview upsampling process, and the obtained image can be directly sent to the ordinary hdr processing module. Hdr image synthesis.
如图5A、图5B所示为上采样算法的两种实现，分别为用利用snapshot的联合滤波上采样算法和硬件上采样方案进行preview插值。As shown in FIG. 5A and FIG. 5B, two implementations of the upsampling algorithm are used for preview interpolation by using a joint filtering upsampling algorithm and a hardware upsampling scheme using a snapshot.
本较佳实施方式作为快速hdr拍摄应用于拍照模式中，一种实现方式为：当启动快速hdr模式后，应用层收到拍照按键命令并且确认af信息准确后，将消息传给hdr模块，preview启动如图2所示hdr格式，即分别作数帧不同曝光，将所得的Lv2(level2，曝光等级2)和Lv-2(level-2，曝光等级-2)的preview图像进行升采样后与正常曝光(Lv0，level0，曝光等级0)下snapshot图像一起送到hdr处理模块，得到一帧hdr图像进行显示和保存，流程如图3所示。The preferred embodiment is applied to the hdr module as a fast hdr camera. The implementation mode is as follows: after the fast hdr mode is started, the application layer receives the photo button command and confirms that the af information is accurate, and then transmits the message to the hdr module, preview The hdr format shown in FIG. 2 is started, that is, different exposures are performed for several frames, and the obtained preview images of Lv2 (level 2, exposure level 2) and Lv-2 (level-2, exposure level-2) are upsampled and Under normal exposure (Lv0, level0, exposure level 0), the snapshot image is sent to the hdr processing module, and a frame of hdr image is displayed and saved. The flow is shown in FIG. 3.
本较佳实施方式适用于：将较小分辨率的图像上采样为大分辨率图像，进行多帧合成hdr图像的技术；使用拍摄图像的预览信息上采样作为hdr输入图像的hdr技术；以及，不同曝光条件下，使用上采样预览图片与拍照图片作为hdr输入进行hdr合成的技术。The preferred embodiment is applicable to: a technique of upsampling a smaller resolution image into a large resolution image, and performing a multiframe synthesis hdr image; and using the preview information of the captured image to upsample the hdr technology as an hdr input image; Under different exposure conditions, a technique of performing hdr synthesis using an upsampled preview image and a photographed image as an hdr input is used.
图6表示本发明实施例提供的一种拍照装置的结构框图，参照图6，本发明实施例提供一种拍照装置，包括： Figure 6 is a block diagram showing the structure of a photographing apparatus according to an embodiment of the present invention. Referring to Figure 6, an embodiment of the present invention provides a photographing apparatus, including:
获取模块601，设置为在接收到用户拍照指令时，获取分别在一第一曝光等级和一第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像，并且，在一第三曝光等级下执行拍照操作，得到一快照图像；The obtaining module 601 is configured to: when receiving the user photographing instruction, acquire a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level, respectively, and in a third Performing a photographing operation under the exposure level to obtain a snapshot image;
调整模块602，设置为分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像；The adjusting module 602 is configured to adjust the resolutions of the first preview image and the second preview image to be equal to the resolution of the snapshot image, respectively, to obtain the first preview image and the adjusted image after the resolution is adjusted. Depicting a second preview image;
生成模块603，设置为根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像；The generating module 603 is configured to generate a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution;
其中，在所述第一曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第一设定时间间隔，在所述第二曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第二设定时间间隔，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级各不相同。The time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than The second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
所述拍照装置用于一拍照设备。The photographing device is used for a photographing device.
可见，通过调高预览图像的分辨率，从而只需要拍摄一帧高分辨率图像就能得到高动态范围图像，与现有技术中需要拍摄三帧图像相比，节省了两帧拍照时间。It can be seen that by increasing the resolution of the preview image, only a high-resolution image of one frame can be captured to obtain a high dynamic range image, which saves two frames of photographing time compared with the prior art in which three frames of images are required.
其中，所述调整模块602可以包括：The adjustment module 602 can include:
第一调整单元，设置为按照第一图像上采样方式，将所述第一预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像；The first adjusting unit is configured to adjust the resolution of the first preview image to be equal to the resolution of the snapshot image according to the first image upsampling manner, to obtain the first preview image after adjusting the resolution;
第二调整单元，设置为按照第二图像上采样方式，将所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第二预览图像。The second adjusting unit is configured to adjust the resolution of the second preview image to be equal to the resolution of the snapshot image according to the second image upsampling manner, to obtain the second preview image after the resolution is adjusted.
其中，所述第一图像上采样方式可以为联合滤波上采样方式或硬件上采样方式，所述第二图像上采样方式可以为联合滤波上采样方式或硬件上采样方式；The first image upsampling mode may be a joint filtering upsampling mode or a hardware upsampling mode, and the second image upsampling mode may be a joint filtering upsampling mode or a hardware upsampling mode;
所述第一图像上采样方式为联合滤波上采样方式时，所述第一调整单元可以包括：When the first image upsampling mode is the joint filtering upsampling mode, the first adjusting unit may include:
第一上采样子单元，设置为根据所述快照图像，将所述第一预览图像进行联合滤波上采样，得到所述调整分辨率后的第一预览图像；The first upsampling subunit is configured to perform joint filtering upsampling on the first preview image according to the snapshot image to obtain the first preview image after the adjusted resolution;
所述第二图像上采样方式为联合滤波上采样方式时，所述第二调整单元可以包括： When the second image upsampling mode is the joint filtering upsampling mode, the second adjusting unit may include:
第二上采样子单元，设置为根据所述快照图像，将所述第二预览图像进行联合滤波上采样，得到所述调整分辨率后的第二预览图像。The second upsampling subunit is configured to perform joint filtering upsampling on the second preview image according to the snapshot image to obtain the second preview image after the adjusted resolution.
本发明实施例中，还可以包括：In this embodiment of the present invention, the method may further include:
预览模块，设置为分别在一第一曝光等级和一第二曝光等级下执行预览操作，得到所述第一预览图像和所述第二预览图像，并将所述第一预览图像和所述第二预览图像缓存到一缓存空间中；a preview module configured to perform a preview operation at a first exposure level and a second exposure level, respectively, to obtain the first preview image and the second preview image, and to obtain the first preview image and the first The second preview image is cached in a cache space;
所述获取模块601包括：The obtaining module 601 includes:
提取单元，设置为从所述缓存空间中提取出所述第一预览图像和所述第二预览图像。An extracting unit configured to extract the first preview image and the second preview image from the cache space.
此外，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级分别可以为过曝光等级、欠曝光等级和正常曝光等级，所述生成模块603可以包括：In addition, the first exposure level, the second exposure level, and the third exposure level may be an overexposure level, an underexposure level, and a normal exposure level, respectively. The generating module 603 may include:
提取所述第一预览图像中的暗态信息和所述第二预览图像中的欠曝光信息；Extracting dark state information in the first preview image and underexposure information in the second preview image;
根据所述暗态信息、所述欠曝光信息和所述快照图像，合成一帧高动态范围图像。A frame high dynamic range image is synthesized according to the dark state information, the underexposure information, and the snapshot image.
本发明实施例还提供一种拍照设备，所述拍照设备包括一拍照装置，所述拍照装置设置为：The embodiment of the invention further provides a photographing device, wherein the photographing device comprises a photographing device, and the photographing device is set as:
在接收到用户拍照指令时，获取分别在一第一曝光等级和一第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像，并且，在一第三曝光等级下执行拍照操作，得到一快照图像；Receiving a user photographing instruction, acquiring a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level, respectively, and performing a photographing operation at a third exposure level , get a snapshot image;
分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像；Adjusting the resolutions of the first preview image and the second preview image to be equal to the resolution of the snapshot image, respectively, to obtain the first preview image and the second preview image after adjusting the resolution;
根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像；Generating a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution;
其中，在所述第一曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第一设定时间间隔，在所述第二曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第二设定时间间隔，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级各不相同。 The time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than The second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
以上所述仅是本发明实施例的实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明实施例原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本发明实施例的保护范围。The above is only an embodiment of the embodiments of the present invention, and it should be noted that those skilled in the art can make some improvements and refinements without departing from the principles of the embodiments of the present invention. Retouching should also be considered as the scope of protection of the embodiments of the present invention.
工业实用性Industrial applicability
如上所述，本发明实施例提供的一种拍照方法、装置及设备具有以下有益效果：通过调高预览图像的分辨率，从而只需要拍摄一帧高分辨率图像就能得到高动态范围图像，与现有技术中需要拍摄三帧图像相比，节省了两帧拍照时间。 As described above, the photographing method, apparatus, and device provided by the embodiments of the present invention have the following beneficial effects: by increasing the resolution of the preview image, only a high-resolution image of one frame can be captured to obtain a high dynamic range image. Compared with the prior art, it is necessary to take three frames of images, which saves two frames of photographing time.

Claims (11)

  1. 一种拍照方法，用于一拍照设备，包括：A photographing method for a photographing device, comprising:
    在接收到用户拍照指令时，获取分别在第一曝光等级和第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像，并且，在第三曝光等级下执行拍照操作，得到一快照图像；Receiving a user photographing instruction, acquiring a first preview image and a second preview image obtained by performing a preview operation under the first exposure level and the second exposure level, respectively, and performing a photographing operation at the third exposure level to obtain one Snapshot image
    分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像；Adjusting the resolutions of the first preview image and the second preview image to be equal to the resolution of the snapshot image, respectively, to obtain the first preview image and the second preview image after adjusting the resolution;
    根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像；Generating a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution;
    其中，在所述第一曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第一设定时间间隔，在所述第二曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第二设定时间间隔，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级各不相同。The time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than The second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
  2. 根据权利要求1所述的拍照方法，其中，所述分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像包括：The photographing method according to claim 1, wherein the resolutions of the first preview image and the second preview image are respectively adjusted to be equal to the resolution of the snapshot image, and the resolution is adjusted. The first preview image and the second preview image include:
    按照第一图像上采样方式，将所述第一预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像；Adjusting the resolution of the first preview image to be equal to the resolution of the snapshot image according to the first image upsampling manner, and obtaining the first preview image after adjusting the resolution;
    按照第二图像上采样方式，将所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第二预览图像。According to the second image upsampling method, the resolution of the second preview image is adjusted to be equal to the resolution of the snapshot image, and the second preview image after the resolution is adjusted is obtained.
  3. 根据权利要求2所述的拍照方法，其中，所述第一图像上采样方式为联合滤波上采样方式或硬件上采样方式，所述第二图像上采样方式为联合滤波上采样方式或硬件上采样方式；The photographing method according to claim 2, wherein the first image upsampling mode is a joint filtering upsampling mode or a hardware upsampling mode, and the second image upsampling mode is a joint filtering upsampling mode or hardware upsampling mode. the way;
    所述第一图像上采样方式为联合滤波上采样方式时，所述按照第一图像上采样方式，将所述第一预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像包括：When the first image upsampling mode is the joint filtering upsampling mode, the resolution of the first preview image is adjusted to be equal to the resolution of the snapshot image according to the first image upsampling manner, and is adjusted. The first preview image after the resolution includes:
    根据所述快照图像，将所述第一预览图像进行联合滤波上采样，得到所述调整分辨率后的第一预览图像； And performing, according to the snapshot image, performing joint filtering upsampling on the first preview image to obtain the first preview image after the adjusted resolution;
    所述第二图像上采样方式为联合滤波上采样方式时，所述按照第二图像上采样方式，将所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第二预览图像包括：When the second image upsampling mode is the joint filtering upsampling mode, the resolution of the second preview image is adjusted to be equal to the resolution of the snapshot image according to the second image upsampling manner, and is adjusted. The second preview image after the resolution includes:
    根据所述快照图像，将所述第二预览图像进行联合滤波上采样，得到所述调整分辨率后的第二预览图像。And performing, according to the snapshot image, performing joint filtering upsampling on the second preview image to obtain the second preview image after the adjusted resolution.
  4. 根据权利要求1所述的拍照方法，其中，还包括：The photographing method according to claim 1, further comprising:
    分别在一第一曝光等级和一第二曝光等级下执行预览操作，得到所述第一预览图像和所述第二预览图像，并将所述第一预览图像和所述第二预览图像缓存到一缓存空间中；Performing a preview operation at a first exposure level and a second exposure level, respectively, obtaining the first preview image and the second preview image, and buffering the first preview image and the second preview image to In a cache space;
    所述获取分别在一第一曝光等级和一第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像包括：The acquiring the first preview image and the second preview image obtained by performing the preview operation at a first exposure level and a second exposure level respectively include:
    从所述缓存空间中提取出所述第一预览图像和所述第二预览图像。Extracting the first preview image and the second preview image from the cache space.
  5. 根据权利要求1所述的拍照方法，其中，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级分别为过曝光等级、欠曝光等级和正常曝光等级，所述根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像包括：The photographing method according to claim 1, wherein the first exposure level, the second exposure level, and the third exposure level are an overexposure level, an underexposure level, and a normal exposure level, respectively. And generating the high dynamic range image by using the snapshot image and the first preview image and the second preview image after adjusting the resolution, including:
    提取所述第一预览图像中的暗态信息和所述第二预览图像中的欠曝光信息；Extracting dark state information in the first preview image and underexposure information in the second preview image;
    根据所述暗态信息、所述欠曝光信息和所述快照图像，合成一帧高动态范围图像。A frame high dynamic range image is synthesized according to the dark state information, the underexposure information, and the snapshot image.
  6. 一种拍照装置，用于一拍照设备，包括：A photographing device for a photographing device, comprising:
    获取模块，设置为在接收到用户拍照指令时，获取分别在一第一曝光等级和一第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像，并且，在一第三曝光等级下执行拍照操作，得到一快照图像；Obtaining a module, configured to acquire a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level respectively when receiving a user photo instruction, and, in a third exposure Perform a photographing operation under the level to obtain a snapshot image;
    调整模块，设置为分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像；And an adjustment module, configured to respectively adjust resolutions of the first preview image and the second preview image to be equal to a resolution of the snapshot image, to obtain the first preview image after adjusting the resolution, and the Second preview image;
    生成模块，设置为根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像； Generating a module, configured to generate a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution;
    其中，在所述第一曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第一设定时间间隔，在所述第二曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第二设定时间间隔，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级各不相同。The time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than The second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
  7. 根据权利要求6所述的拍照装置，其中，所述调整模块包括：The photographing apparatus according to claim 6, wherein the adjustment module comprises:
    第一调整单元，设置为按照第一图像上采样方式，将所述第一预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像；The first adjusting unit is configured to adjust the resolution of the first preview image to be equal to the resolution of the snapshot image according to the first image upsampling manner, to obtain the first preview image after adjusting the resolution;
    第二调整单元，设置为按照第二图像上采样方式，将所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第二预览图像。The second adjusting unit is configured to adjust the resolution of the second preview image to be equal to the resolution of the snapshot image according to the second image upsampling manner, to obtain the second preview image after the resolution is adjusted.
  8. 根据权利要求7所述的拍照装置，其中，所述第一图像上采样方式为联合滤波上采样方式或硬件上采样方式，所述第二图像上采样方式为联合滤波上采样方式或硬件上采样方式；The photographing apparatus according to claim 7, wherein the first image upsampling mode is a joint filtering upsampling mode or a hardware upsampling mode, and the second image upsampling mode is a joint filtering upsampling mode or hardware upsampling mode. the way;
    所述第一图像上采样方式为联合滤波上采样方式时，所述第一调整单元包括：When the first image upsampling mode is the joint filtering upsampling mode, the first adjusting unit includes:
    第一上采样子单元，设置为根据所述快照图像，将所述第一预览图像进行联合滤波上采样，得到所述调整分辨率后的第一预览图像；The first upsampling subunit is configured to perform joint filtering upsampling on the first preview image according to the snapshot image to obtain the first preview image after the adjusted resolution;
    所述第二图像上采样方式为联合滤波上采样方式时，所述第二调整单元包括：When the second image upsampling mode is the joint filtering upsampling mode, the second adjusting unit includes:
    第二上采样子单元，设置为根据所述快照图像，将所述第二预览图像进行联合滤波上采样，得到所述调整分辨率后的第二预览图像。The second upsampling subunit is configured to perform joint filtering upsampling on the second preview image according to the snapshot image to obtain the second preview image after the adjusted resolution.
  9. 根据权利要求6所述的拍照装置，其中，还包括：The photographing apparatus according to claim 6, further comprising:
    预览模块，设置为分别在一第一曝光等级和一第二曝光等级下执行预览操作，得到所述第一预览图像和所述第二预览图像，并将所述第一预览图像和所述第二预览图像缓存到一缓存空间中；a preview module configured to perform a preview operation at a first exposure level and a second exposure level, respectively, to obtain the first preview image and the second preview image, and to obtain the first preview image and the first The second preview image is cached in a cache space;
    所述获取模块包括：The obtaining module includes:
    提取单元，设置为从所述缓存空间中提取出所述第一预览图像和所述第二预览图像。 An extracting unit configured to extract the first preview image and the second preview image from the cache space.
  10. 根据权利要求6所述的拍照装置，其中，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级分别为过曝光等级、欠曝光等级和正常曝光等级，所述生成模块包括：The photographing apparatus according to claim 6, wherein the first exposure level, the second exposure level, and the third exposure level are an overexposure level, an underexposure level, and a normal exposure level, respectively, the generation module include:
    提取所述第一预览图像中的暗态信息和所述第二预览图像中的欠曝光信息；Extracting dark state information in the first preview image and underexposure information in the second preview image;
    根据所述暗态信息、所述欠曝光信息和所述快照图像，合成一帧高动态范围图像。A frame high dynamic range image is synthesized according to the dark state information, the underexposure information, and the snapshot image.
  11. 一种拍照设备，包括一拍照装置，所述拍照装置设置为：A photographing device includes a photographing device, and the photographing device is configured to:
    在接收到用户拍照指令时，获取分别在一第一曝光等级和一第二曝光等级下执行预览操作得到的第一预览图像和第二预览图像，并且，在一第三曝光等级下执行拍照操作，得到一快照图像；Receiving a user photographing instruction, acquiring a first preview image and a second preview image obtained by performing a preview operation under a first exposure level and a second exposure level, respectively, and performing a photographing operation at a third exposure level , get a snapshot image;
    分别将所述第一预览图像和所述第二预览图像的分辨率调整到与所述快照图像的分辨率相等，得到调整分辨率后的所述第一预览图像和所述第二预览图像；Adjusting the resolutions of the first preview image and the second preview image to be equal to the resolution of the snapshot image, respectively, to obtain the first preview image and the second preview image after adjusting the resolution;
    根据所述快照图像和调整分辨率后的所述第一预览图像和所述第二预览图像，生成高动态范围图像；Generating a high dynamic range image according to the snapshot image and the first preview image and the second preview image after adjusting the resolution;
    其中，在所述第一曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第一设定时间间隔，在所述第二曝光等级下执行预览操作与执行拍照操作的时间间隔不大于第二设定时间间隔，所述第一曝光等级、所述第二曝光等级和所述第三曝光等级各不相同。 The time interval between performing the preview operation and performing the photographing operation at the first exposure level is not greater than the first set time interval, and the time interval between performing the preview operation and performing the photographing operation at the second exposure level is not greater than The second time interval is set, and the first exposure level, the second exposure level, and the third exposure level are different.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107566739A (en) * 2017-10-18 2018-01-09 维沃移动通信有限公司 A kind of photographic method and mobile terminal
US10313594B2 (en) 2017-01-05 2019-06-04 Qualcomm Incorporated Dynamically configuring memory bandwidth for image generation
CN109919841A (en) * 2019-01-24 2019-06-21 重庆邮电大学 A kind of synthetic method of the guiding figure for high dynamic range images joint up-sampling
CN113810600A (en) * 2021-08-12 2021-12-17 荣耀终端有限公司 Terminal image processing method and device and terminal equipment
CN115776532A (en) * 2021-09-07 2023-03-10 荣耀终端有限公司 Method for capturing image in video and electronic equipment

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108391060B (en) * 2018-03-26 2021-02-09 华为技术有限公司 Image processing method, image processing device and terminal
CN110557573A (en) 2018-06-01 2019-12-10 苹果公司 Unified bracketing method for imaging
CN111385571B (en) * 2018-12-29 2022-07-19 浙江宇视科技有限公司 Method and device for controlling code rate of ultra-long image group
CN110049254B (en) * 2019-04-09 2021-04-02 Oppo广东移动通信有限公司 Image processing method, image processing device, storage medium and electronic equipment
CN109993722B (en) * 2019-04-09 2023-04-18 Oppo广东移动通信有限公司 Image processing method, image processing device, storage medium and electronic equipment
CN110049241A (en) * 2019-04-09 2019-07-23 Oppo广东移动通信有限公司 Image processing method, device, storage medium and electronic equipment
CN110035233A (en) * 2019-04-09 2019-07-19 Oppo广东移动通信有限公司 Image processing method, device, storage medium and electronic equipment
CN110033421B (en) * 2019-04-09 2021-08-24 Oppo广东移动通信有限公司 Image processing method, image processing device, storage medium and electronic equipment
CN110121031B (en) * 2019-06-11 2021-03-12 Oppo广东移动通信有限公司 Image acquisition method and device, electronic equipment and computer readable storage medium
CN110248098B (en) * 2019-06-28 2021-08-24 Oppo广东移动通信有限公司 Image processing method, image processing device, storage medium and electronic equipment
CN110958363B (en) * 2019-12-04 2022-04-15 RealMe重庆移动通信有限公司 Image processing method and device, computer readable medium and electronic device
CN113382169B (en) * 2021-06-18 2023-05-09 荣耀终端有限公司 Photographing method and electronic equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110150357A1 (en) * 2009-12-22 2011-06-23 Prentice Wayne E Method for creating high dynamic range image
CN102668545A (en) * 2009-12-22 2012-09-12 伊斯曼柯达公司 Creating a high dynamic range image using still and preview images
CN103201766A (en) * 2010-11-03 2013-07-10 伊斯曼柯达公司 Method for producing high dynamic range images
CN103731603A (en) * 2012-10-12 2014-04-16 三星电子株式会社 Apparatus and method for processing image in camera device and portable terminal
CN103986875A (en) * 2014-05-29 2014-08-13 宇龙计算机通信科技(深圳)有限公司 Image acquiring device, method and terminal and video acquiring method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110150357A1 (en) * 2009-12-22 2011-06-23 Prentice Wayne E Method for creating high dynamic range image
CN102668545A (en) * 2009-12-22 2012-09-12 伊斯曼柯达公司 Creating a high dynamic range image using still and preview images
CN103201766A (en) * 2010-11-03 2013-07-10 伊斯曼柯达公司 Method for producing high dynamic range images
CN103731603A (en) * 2012-10-12 2014-04-16 三星电子株式会社 Apparatus and method for processing image in camera device and portable terminal
CN103986875A (en) * 2014-05-29 2014-08-13 宇龙计算机通信科技(深圳)有限公司 Image acquiring device, method and terminal and video acquiring method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10313594B2 (en) 2017-01-05 2019-06-04 Qualcomm Incorporated Dynamically configuring memory bandwidth for image generation
CN107566739A (en) * 2017-10-18 2018-01-09 维沃移动通信有限公司 A kind of photographic method and mobile terminal
CN107566739B (en) * 2017-10-18 2019-12-06 维沃移动通信有限公司 photographing method and mobile terminal
CN109919841A (en) * 2019-01-24 2019-06-21 重庆邮电大学 A kind of synthetic method of the guiding figure for high dynamic range images joint up-sampling
CN109919841B (en) * 2019-01-24 2022-12-27 重庆邮电大学 Synthesis method of guide graph for high dynamic range image joint up-sampling
CN113810600A (en) * 2021-08-12 2021-12-17 荣耀终端有限公司 Terminal image processing method and device and terminal equipment
CN113810600B (en) * 2021-08-12 2022-11-11 荣耀终端有限公司 Terminal image processing method and device and terminal equipment
CN115776532A (en) * 2021-09-07 2023-03-10 荣耀终端有限公司 Method for capturing image in video and electronic equipment
CN115776532B (en) * 2021-09-07 2023-10-20 荣耀终端有限公司 Method for capturing images in video and electronic equipment

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