Backlight portrait scene photographing processing method and device

A technology for backlit people and scenes, which is applied to the field of shooting processing methods and devices for backlit portrait scenes, can solve problems such as poor quality and black faces in backlit portraits, and achieve moderate exposure, avoid black faces, and improve quality.

Active Publication Date: 2014-09-10
XIAOMI INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present disclosure provide a shooting and processing method and device for backlit portrait scenes, which are used to overcome the problems of black faces and poor quality of backlit portraits in the related art

Method used

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  • Backlight portrait scene photographing processing method and device
  • Backlight portrait scene photographing processing method and device
  • Backlight portrait scene photographing processing method and device

Examples

Experimental program
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Embodiment 1

[0099] Such as Figure 4 As shown, use the HDR program to process the image, increase the brightness of the face area of ​​the backlit portrait, and perform brightness smooth transition processing on the image after the brightness of the enhanced face area is taken as an example. The shooting of the backlit portrait scene in the embodiment of the present disclosure The processing method is described in detail, such as Figure 4 As shown, the method includes steps S401-S408:

[0100] In step S401, when it is detected that the current shooting scene is a backlit portrait, an image is captured.

[0101] In step S402, the captured image is processed by an HDR program to obtain a processed image.

[0102] Wherein, the processed image effect diagram obtained in step S402 is as follows Figure 5 shown.

[0103] In step S403, skin color detection is performed on the human face area in the above-mentioned processed image, and it is judged whether the ratio of the skin color area in...

Embodiment 2

[0113] Such as Figure 7 As shown, the brightness of the face area is increased to the preset brightness as an example, and the shooting processing method of the backlit portrait scene in the embodiment of the present disclosure is described in detail, as shown in Figure 7 As shown, the method includes steps S701-S704:

[0114] In step S701, when it is detected that the current shooting scene is a backlit portrait, an image is collected.

[0115] In step S702, skin color detection is performed on the face area in the image, and it is judged whether the ratio of the skin color area in the face area to the area of ​​the face area is less than a preset ratio; if yes, step S703 is executed, and if not, then end.

[0116] In one embodiment, the preset brightness adjustment condition in step S702 may also be that the average brightness of the face area is smaller than the average brightness of the image.

[0117] In step S703, the brightness of the face area is increased until th...

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Abstract

The invention discloses a backlight portrait scene photographing processing method and device. The method comprises, when detecting that a current photographing scene is a backlight portrait, collecting an image; performing skin-color detection on the face region in the image to determine whether the brightness of the face area meets preset brightness adjusting conditions; if so, enhancing the brightness of the face area until the enhanced brightness of the face area meets preset adjustment stopping conditions; according to the image with the brightness of the face area enhanced, generating a final photograph image. The backlight portrait scene photographing processing method and device achieve enhancement of the brightness of the face area in a backlight portrait scene when the brightness of the face area meet the preset brightness adjusting conditions, thereby effectively avoiding the problem of insufficient brightness of the face of a backlight portrait and improving the quality of the backlight portrait.

Description

technical field [0001] The present disclosure relates to the technical field of computers and electronic equipment, and in particular to a method and device for shooting and processing backlit portrait scenes. Background technique [0002] When shooting in a backlit scene, since the light-receiving surface of the subject is smaller than the backlight surface, the light ratio of the light-receiving surface of the subject to the backlight surface is large, and the contrast is strong. When the subject includes a portrait, if the backlight area of ​​the face area is relatively large, the face will be darker than the surrounding objects, so that the skin color of the face in the captured image will be darker. Gives a black face effect. [0003] In related technologies, the face area is brightened by increasing the exposure of backlit portraits as a whole, or shooting in HDR (High Dynamic Range Imaging, high dynamic range image) mode, and overcoming the darkening of the face by s...

Claims

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Application Information

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IPC IPC(8): H04N5/235H04N5/355H04N1/60
Inventor 秦秋平王百超张涛
Owner XIAOMI INC
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