Shooting method and mobile terminal
A technology for mobile terminals and shooting scenes, which is applied in the field of communication, and can solve the problem of unobvious picture levels in high dynamic domain images
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Embodiment 1
[0025] refer to figure 1 , showing a flow chart of a photographing method according to an embodiment of the present invention, which is applied to a mobile terminal, and the method may specifically include the following steps:
[0026] Step 110, using multiple exposure parameters to acquire multiple images for the target shooting scene; the multiple images include a normal exposure image, an underexposure image and an overexposure image.
[0027] As mentioned above, since the dynamic domain of images captured by mobile terminals such as mobile phones is limited by the imaging device itself, in order to expand the dynamic domain of the photos, HDR images for the target shooting scene can be obtained by shooting. A common practice is to use exposure bracketing to shoot multiple frames of continuous images with different exposure values, and generate an HDR image through seamless composite technology. Therefore, in the embodiment of the present invention, multiple exposure param...
Embodiment 2
[0058] refer to figure 2 , showing a flow chart of a photographing method according to another embodiment of the present invention, which may specifically include the following steps:
[0059] Step 210, based on normal exposure parameters, obtain a normal exposure map of the target shooting scene.
[0060] For the case where the mobile terminal includes multiple cameras, the depth map of the target shooting scene can be obtained based on the binocular stereo vision method. The so-called binocular stereo vision method refers to the use of dual cameras to shoot objects, and then calculate the object distance through the triangle principle. The binocular stereo vision method relies on the natural light in the environment to collect images, and if the impact of environmental factors such as changes in the illumination angle and light intensity causes a relatively large difference in brightness between the two captured pictures, it will pose a great challenge to the binocular ste...
Embodiment 3
[0086] refer to image 3 , shows a block diagram of a mobile terminal according to an embodiment of the present invention. The mobile terminal in the embodiment of the present invention can realize the details of the photographing method in the first embodiment to the second embodiment, and achieve the same effect. image 3 The illustrated mobile terminal 300 includes:
[0087] The image acquisition module 310 is configured to use various exposure parameters to respectively acquire multiple images for the target shooting scene; the multiple images include a normal exposure image, an underexposure image and an overexposure image.
[0088] The portrait area confirmation module 320 is configured to determine the depth ranges of the portrait area and the non-portrait area according to the normal exposure map.
[0089] The fusion processing module 330 is configured to perform fusion processing on the multiple images according to the depth ranges of the portrait area and the non-p...
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