Image optimization method, image optimization device and terminal

An image and terminal technology, applied in the field of image processing, can solve problems such as partial blackness and insufficient exposure of the main image, achieve good effects, optimize effects, and improve overall brightness.

Active Publication Date: 2021-07-20
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In the process of implementing the present invention, the inventor found that: HDR performs global processing on the entire captured image, which may be invalid in the scene where the subject image is shot, because at this time, even after overexposure, the part of the subject image The exposure is still not enough. Although it has a certain effect, there will still be a blackish situation.

Method used

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  • Image optimization method, image optimization device and terminal
  • Image optimization method, image optimization device and terminal
  • Image optimization method, image optimization device and terminal

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specific Embodiment

[0133] combine Figure 11 and Figure 12 A specific embodiment of the image optimization method will be described.

[0134] In this embodiment, combined with the face detection technology on the camera, the image is segmented, and the segmented face image is separately enhanced with local illumination to improve the brightness of the face. In order to make the overall effect of the image look better, The processed face image is fused with surrounding parts. The details of each step will be introduced below, mainly including:

[0135] Step 1102, face detection;

[0136] Step 1104, local illumination enhancement;

[0137] Step 1106, merging with surrounding images.

[0138] In step 1102, using simple eye positioning and hardware acceleration technology, the face can be quickly located and tracked. After entering the era of smart phones, various photo-taking apps have emerged in an endless stream, and various similar functions have also appeared according to demand, especia...

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Abstract

The invention discloses an image optimization method, an image optimization device and a terminal, and relates to the technical field of image processing. The image optimization method includes: acquiring subject image data in an image; converting an RGB model of the subject image data into an HSV model; enhancing the HSV model Part of the pixels in the V channel of the image are used to fill in the main image, and exposure enhancement processing is performed on the part of the image other than the main image. The technical solution provided by the present invention optimizes the main body part in the image by means of local brightness enhancement, solves the problem of blackening of the main body part in the image captured by backlight, and improves the brightness of the darkened main body part so that the user can obtain a clearer look and feel, To achieve the purpose of optimizing the image.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular, to an image optimization method, an image optimization device and a terminal. Background technique [0002] In the prior art, HDR is usually used to make up for photos with poor imaging effects taken under backlight conditions. The full name of HDR is High Dynamic Range, that is, high dynamic range. When this function is turned on, when taking pictures, three photos will be taken in succession, corresponding to underexposure, normal exposure and overexposure, and then synthesized into one picture to improve the details of dark and bright parts. [0003] In the process of implementing the present invention, the inventor found that: HDR performs global processing on the entire captured image, which may be invalid in the scene where the subject image is shot, because at this time, even after overexposure, the part of the subject image The exposure is still not enoug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/235H04N5/243
CPCH04N23/76H04N23/71
Inventor 吴福华
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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