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Image processing method, mobile terminal and computer readable storage medium

An image processing and mobile terminal technology, applied in the field of image processing, can solve problems such as alignment errors, and achieve the effect of improving the problems of alignment errors

Active Publication Date: 2017-12-08
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an image processing method, a mobile terminal and a computer-readable storage medium to solve the problem of alignment errors in the prior art

Method used

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  • Image processing method, mobile terminal and computer readable storage medium
  • Image processing method, mobile terminal and computer readable storage medium
  • Image processing method, mobile terminal and computer readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] refer to figure 1 , shows a flow chart of steps of an image processing method according to Embodiment 1 of the present invention.

[0020] The image processing method provided by the embodiment of the present invention includes the following steps:

[0021] Step 101: Select an image from the sequence of images to be processed as a reference image.

[0022] Step 102: Determine the alignment area in the image to be processed according to the reference image.

[0023] Continuously shoot multiple images with different brightness by controlling the exposure time and sensitivity.

[0024] The following is the continuous shooting of 3 images as I 1 , I 2 , I 3 Take this as an example.

[0025] After sorting the image sequence according to brightness, sort it as I 1 , I 2 , I 3 ; Select one of the images as the reference image I ref , choose I in this embodiment 2 as the reference image I ref , I 1 and I 3 as an image to be processed.

[0026] Divide the referenc...

Embodiment 2

[0034] refer to figure 2 , shows a flow chart of steps of an image processing method according to Embodiment 2 of the present invention.

[0035] The image processing method provided by the embodiment of the present invention includes the following steps:

[0036] Step 201: Randomly select an image from the sequence of images to be processed as a reference image.

[0037] Step 202: According to the reference image, calculate the brightness weight and similarity weight of each sub-region in the image to be processed.

[0038] One way to preferably determine the brightness weight of a single sub-region is:

[0039] First, determine the pixel value of each pixel contained in the sub-region;

[0040] Secondly, for each pixel, when the pixel value of the pixel is less than the first preset value, the pixel value is determined as the pixel weight of the pixel; when the pixel value of the pixel is greater than or equal to the first preset value, the second The difference between...

Embodiment 3

[0069] refer to image 3 , shows a structural block diagram of a mobile terminal according to Embodiment 3 of the present invention.

[0070] The mobile terminal provided by the embodiment of the present invention includes: a reference image determination module 301, configured to select an image from the image sequence to be processed as a reference image; a determination module 302, configured to determine the alignment in the image to be processed according to the reference image Area; an acquisition module 303, configured to acquire a target reference sub-area corresponding to the alignment area in the reference image; a normalization module 304, used to normalize the brightness of the alignment area and the target reference sub-area change.

[0071] The mobile terminal provided by the embodiment of the present invention selects an image from the image sequence to be processed as a reference image, and determines the alignment area in the image to be processed according t...

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Abstract

Embodiments of the invention provide an image processing method, a mobile terminal, and a computer readable storage medium. The method includes the steps of selecting an image from a to-be-processed image sequence as a reference image; determining, according to the reference image, an alignment area in a to-be-processed image; acquiring a target reference sub-area corresponding to the alignment area in the reference image; and performing brightness normalization on the alignment area and the target reference sub-area. In the embodiments of the invention, the problem of an alignment error between different exposure images can be improved through the brightness normalization on the alignment area in the to-be-processed image with the target reference sub-area.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image processing method, a mobile terminal and a computer-readable storage medium. Background technique [0002] With the popularity of mobile terminals, more and more consumers choose to use mobile terminals to take pictures. Limited by the dynamic range of the camera sensor, mobile terminals will use HDR (High-Dynamic Range, High Dynamic Light Rendering Image) technology when taking pictures in high dynamic range scenes. Fusion, blending a high dynamic range image. Mobile terminals will inevitably shake when shooting image sequences, and the captured image sequences will have blur problems, resulting in blur problems in the final fused high-dynamic images. In order to solve the problem of image blur, before the image sequence is fused A global alignment of the images in the image sequence is required. [0003] Global alignment is the process of image sequ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/235
CPCH04N23/80H04N23/70
Inventor 杨威寇飞张华琪
Owner VIVO MOBILE COMM CO LTD