| With the continuous development of science and technology,people's cultural needs are also increasing,accompanied by the emergence of a large number of digital museums.However,in the face of a large number of damaged ancient cultural relics with damaged conditions in digital museums,fast and accurate inpainting of them has always been the focus and difficulty in the field of digital image inpainting.The digital image inpainting method based on texture synthesis has a good effect on the surface texture inpainting of large area defects of ancient cultural relics.Among them,Criminisi algorithm is the most widely used,but there are a lot of unreasonable extension and seam effect in the repair results.This paper has carried on the in-depth research and the analysis to its origin reason,the main reason why the repair result is not ideal is that the calculation formula of the priority in the Criminisi algorithm will change unreasonably with the repair process,which will lead to the wrong repair order,and ultimately lead to the unreasonable repair result,which will seriously affect the repair results.and human visual coherence.This paper puts forward an improved method of calculating the priority weights with the addition of supplementary item.This method can effectively avoid the problem that the priority value of some edge pixels to be repaired is reduced to zero rapidly,and it can ensure the accuracy of the calculation formula of the original priority in the Criminisi algorithm in the initial stage of inpainting.This calculation method is added to the repair process to carry on the experiment research and the parameter determination in the supplementary item,carry on the multi-group experiment and carry on the evaluation to the experiment result,finally pass through the experiment.The value is compared with the two indexes include human visual coherence and SSIM value,so as to analyze and confirm the reliability and advantage of the advance method. |
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