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Novel color saturation adjusting method and system and mobile terminal

An adjustment method and a technology for adjusting the system, applied in the direction of color signal processing circuits, etc., can solve problems such as insufficient picture saturation, lower user experience, inconsistent picture quality, etc., and achieve the effect of overcoming large color noise, bright colors, and improving experience

Inactive Publication Date: 2015-11-04
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now mobile terminal (such as mobile phone) cameras adjust the color saturation according to the color temperature value and brightness of the light source. However, this often encounters a problem. The overall picture saturation may not be high enough, and the color noise is obvious in the dark area of ​​the picture. As a result, the final output photo is distorted or blurred, which does not match the user's expected picture quality and reduces the user experience.

Method used

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  • Novel color saturation adjusting method and system and mobile terminal
  • Novel color saturation adjusting method and system and mobile terminal
  • Novel color saturation adjusting method and system and mobile terminal

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Effect test

Embodiment 1

[0042] Embodiment 1 of the present invention provides a new method for adjusting color saturation, which will be described in detail below with reference to the accompanying drawings. figure 1 It is a flow chart of the method of Embodiment 1 of the present invention, please refer to figure 1 , the method of the embodiment of the present invention includes the following steps:

[0043] Step S101, the mobile terminal turns on the camera, and outputs an image in YUV format under normal exposure;

[0044] Step S102, dividing the YUV format image into N*N area blocks, and calculating the average brightness Y of each area block;

[0045] Step S103, according to the size of the average luminance Y value of each area block, determine the high-brightness area and low-brightness area of ​​the image;

[0046] Step S104 , adjusting the color saturation of the image, using higher saturation for the highlighted area to ensure bright colors in the highlighted area, and using lower saturati...

Embodiment 2

[0049] Embodiment 2 of the present invention provides a new color saturation adjustment system, which is an improvement on the basis of Embodiment 1. figure 2 It is the method flowchart of the second embodiment of the present invention, please refer to figure 2 , the method of the embodiment of the present invention includes the following steps:

[0050] Step S201, the mobile terminal turns on the camera, and outputs an image in YUV format under normal exposure;

[0051] Step S202, dividing the YUV format image into N*N area blocks, and calculating the brightness of all pixel values ​​in the area blocks;

[0052] Step S203, then average the brightness of all pixel values ​​in the area block, and calculate the average brightness Y of each area block;

[0053] Step S204, according to the size of the average luminance Y value of each area block, determine the high-brightness area and low-brightness area of ​​the image; specifically: set the threshold Y1 of the high-brightness...

Embodiment 3

[0056] Embodiment 3 of the present invention provides a new color saturation adjustment system, please refer to image 3, the system of the embodiment of the present invention includes an image output module 1, a brightness calculation module 2, a judgment module 3 and a color adjustment module 4, and the image output module 1, the brightness calculation module 2, the judgment module 3 and the color adjustment module 4 are sequentially connected, The functions of each module will be described in detail below.

[0057] The image output module 1 is used for the mobile terminal to turn on the camera, and output the image in YUV format under normal exposure;

[0058] Brightness calculation module 2, for dividing the YUV format image into N*N regional blocks, and calculating the average brightness Y of each regional block;

[0059] Judgment module 3, for judging the bright area and low bright area of ​​the image according to the size of the average brightness Y value of each area ...

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Abstract

The invention discloses a novel color saturation adjusting method and system and a mobile terminal. The method comprises the following steps that the camera of the mobile terminal is started, and a YUV format image is outputted through normal exposure; the YUV format image is divided into N*N region blocks, and average brightness Y of each region block is calculated; high-brightness regions and low-brightness regions of the image are judged according to the size of the average brightness Y value of each region block; and color saturation of the image is adjusted, relatively high saturation is applied to the high-brightness regions so as to guarantee bright color of the high-brightness regions, and relatively low saturation is applied to the low-brightness regions so as to suppress color noise. Color saturation is adjusted on the basis of regions according to region brightness so that high saturation and bright color of the high-brightness regions can be guaranteed and the low-brightness regions have low saturation and color noise can be suppressed, the requirements of clients for the quality of images photographed by the mobile terminal can be met and better experience can be given to the clients.

Description

technical field [0001] The present invention relates to the technical field of communication terminals, and more specifically, relates to a new method and system for adjusting color saturation and a mobile terminal. Background technique [0002] Now mobile terminal (such as mobile phone) cameras adjust the color saturation according to the color temperature value and brightness of the light source. However, this often encounters a problem. The overall picture saturation may not be high enough, and the color noise is obvious in the dark area of ​​the picture. As a result, the final output photo is distorted or blurred, which does not match the picture quality expected by the user, and reduces the user experience. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and provide a new color saturation adjustment system, which adjusts the color saturation in different regions according to the brigh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/64
Inventor 雷辉
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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