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An image restoration method based on a Criminisi algorithm

A repair method and image technology, applied in the field of image repair, can solve problems such as image structure disorder and image breakage, and achieve the effect of solving image breakage

Active Publication Date: 2019-05-21
XI'AN POLYTECHNIC UNIVERSITY
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Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of image restoration method based on Criminisi algorithm, solve the phenomena such as image fracture after image restoration in the prior art, image structure disorder

Method used

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  • An image restoration method based on a Criminisi algorithm
  • An image restoration method based on a Criminisi algorithm
  • An image restoration method based on a Criminisi algorithm

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Embodiment Construction

[0066] The technical solution of the present invention will be described in further detail below in conjunction with the description of the accompanying drawings and specific embodiments.

[0067] like figure 1 and figure 2 Shown, a kind of image restoration method based on Criminisi algorithm of the present invention, specifically implement according to the following steps:

[0068] Step 1, obtain the image I to be repaired;

[0069] Step 2, identify the sample area in the image I obtained by step 1 and the damaged area that needs to be repaired;

[0070] where Ω is the damaged area, Φ is the sample area, Indicates the edge of the damaged area and the sample area;

[0071] Step 3, dividing the damaged area identified in step 2 into a plurality of blocks to be repaired;

[0072] Among them, P is the center point of the block to be repaired, is the block to be repaired with P as the center point, n p is the normal direction of P, is the direction of the isoluminesce...

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Abstract

The invention discloses an image restoration method based on a Criminisi algorithm. The core idea of the Criminisi algorithm is to calculate the priority of a repair block, determine a repair area according to the priority, find an optimal matching block according to an SSD criterion and fill the optimal matching block, and finally update the confidence of the repair block after repair until the repair of a to-be-repaired area is finished. According to the image restoration method based on the Criminisi algorithm, optimization is carried out on the basis of an existing Criminisi algorithm, andthe phenomena that in the prior art, after image restoration, an image is broken, and the image structure is disordered are solved.

Description

technical field [0001] The invention belongs to the technical field of image restoration, in particular to an image restoration method based on the Criminisi algorithm. Background technique [0002] With the continuous development and progress of digital technology, digital image technology is widely used in digital products such as scanners, digital cameras, digital video cameras, digital TVs, and mobile phones that can send and receive images. However, there are many factors that will cause the loss of local information on the image: ①The image obtained after scanning the original scratched or damaged picture; ②After removing the target object or text on the digital image for a special purpose The information blank area left; ③In the process of digital image acquisition, processing, compression, transmission and decompression, the information defect area left due to information loss, etc. In order to ensure the integrity of image information, these damaged images need to ...

Claims

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Application Information

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IPC IPC(8): G06T5/00
Inventor 汤汶曹齐万韬阮朱耀麟武桐
Owner XI'AN POLYTECHNIC UNIVERSITY
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