Face area processing method and device in backlight scene

A face area and processing method technology, applied in the field of image processing, can solve the problems of pale skin color and increased noise reduction intensity in the face area, and achieve the effect of improving image quality and ensuring visual effects

Active Publication Date: 2017-12-08
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
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Problems solved by technology

[0004] The present invention provides a face area processing method and device in backlit scenes to solve the problem in the prior art that only increasing

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  • Face area processing method and device in backlight scene
  • Face area processing method and device in backlight scene
  • Face area processing method and device in backlight scene

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Embodiment Construction

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] Based on the above analysis, it can be understood that in related technologies, if the ISO sensitivity is increased, the sensitivity of the image sensor to light will be improved, and once the sensitivity to light is increased, the noise generated by environmental interference will also increase. Large, in order to reduce some irrelevant pixels in the image due to noise, the noise reduction strength of the image will be increased, but with the increase of the noise reduction strength, some details of the image will be lost,...

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Abstract

The invention discloses a face area processing method and device in a backlight scene. The method comprises the steps of separating a foreground and a backlight background from a currently photographed image when the backlight scene is detected; carrying out luminance promotion on the foreground and determining a face area in the foreground; and improving saturability corresponding to the face area in an HSV color model. When the face area image under the backlight condition is heightened, the problem that the face is faded in skin color and is complexionless is solved, the image quality is improved, and moreover, the image display visual effect is ensured.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method and device for processing a human face area in a backlit scene. Background technique [0002] Usually, when taking a photo, if the user's face is between the light source and the camera, the exposed user's face will not be fully exposed, resulting in a backlight effect. However, in the user's face image captured in this backlit scene, the brightness is very low, the user's face is darker, and the details of the interview are blurred. [0003] In the related technology, in order to improve the brightness of the human face in backlit scenes, the sensitivity ISO is increased to increase the brightness of the human face area by enhancing the sensitivity to light. However, after the ISO is increased, the noise will also be large, reducing the The noise level will also be enhanced, which will cause the entire picture to be too bright, and the noise reduction ...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N5/235G06T5/00
CPCG06T5/007H04N23/611H04N23/71
Inventor 袁全
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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