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Image denoising processing method and apparatus

A technology of image noise reduction and processing method, which is applied in the field of image processing and can solve the problems of picture blur, noise, picture graininess, etc.

Inactive Publication Date: 2016-11-16
ONEPLUS TECH SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The long exposure method can make the picture pure, but as the exposure time increases, if there is a slight shake when taking pictures, the picture will be blurred
The way of high brightness gain will be accompanied by serious noise, which makes the picture have obvious graininess

Method used

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  • Image denoising processing method and apparatus
  • Image denoising processing method and apparatus
  • Image denoising processing method and apparatus

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Embodiment Construction

[0056] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0057] In one embodiment, such as figure 1 As shown, an image noise reduction processing method is provided, and the method is applied to a terminal with a camera function as an example for illustration, specifically including:

[0058] Step 102, receiving a photographing instruction.

[0059] Step 104: Continuously shoot according to the camera instruction to obtain multiple frames of original images.

[0060] Terminals include digital cameras, smartphones, tablets, etc. The terminal receives a photographing instruction input by the user. The terminal continuously photographs the object to be ph...

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Abstract

The invention relates to an image denoising processing method and apparatus. The method comprises the steps of receiving a shooting instruction; performing continuous shooting according to the shooting instruction to obtain multiple frames of original images; obtaining an environmental brightness value and / or an ISO value corresponding to a shooting environment; judging whether one of at least following conditions is met: the environmental brightness value is smaller than or equal to a preset brightness value, and the ISO value is greater than or equal to a preset ISO value; if yes, obtaining a to-be-denoised original image according to the environmental brightness value or the ISO value; and obtaining RAW data of the to-be-denoised original image, converting the RAW data into YUV data, and performing multi-frame denoising processing on the YUV data to obtain an output image. With the adoption of the method, a clear image can be obtained without manually adjusting exposure time or brightness gain in an automatic shooting mode.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image noise reduction processing method and device. Background technique [0002] With the development of technology, digital cameras have spread, and mobile terminals such as smartphones and tablet PCs also have shooting functions. In the fully automatic shooting mode, in order to meet the brightness requirements of the picture in a low-light environment, long exposure or high brightness gain is usually used to achieve it. The long exposure method can make the picture pure, but as the exposure time increases, if there is a slight shake when taking pictures, the picture will be blurred. The way of high brightness gain will be accompanied by serious noise, which makes the picture have obvious graininess. How to obtain a clear image without manually adjusting the exposure time or brightness gain has become a technical problem that needs to be solved at present...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T7/40
CPCG06T2207/10024G06T2207/20182G06T5/70
Inventor 廖奕涵林玮如
Owner ONEPLUS TECH SHENZHEN
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