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Image inpainting methods evaluation and improvement.

Vreja R, Brad R - ScientificWorldJournal (2014)

Bottom Line: The need for an analytical comparison, beside the visual one, urged us to perform the studies shown in the present paper.Conclusions regarding the performance of the investigated algorithms have been presented, categorizing them in function of the restored image structure.Based on these experiments, we have proposed an adaptation of Oliveira's and Hadhoud's algorithms, which are performing well on images with natural defects.

View Article: PubMed Central - PubMed

Affiliation: Computer Science Department, Lucian Blaga University of Sibiu, B-dul Victoriei 10, 550024 Sibiu, Romania.

ABSTRACT
With the upgrowing of digital processing of images and film archiving, the need for assisted or unsupervised restoration required the development of a series of methods and techniques. Among them, image inpainting is maybe the most impressive and useful. Based on partial derivative equations or texture synthesis, many other hybrid techniques have been proposed recently. The need for an analytical comparison, beside the visual one, urged us to perform the studies shown in the present paper. Starting with an overview of the domain, an evaluation of the five methods was performed using a common benchmark and measuring the PSNR. Conclusions regarding the performance of the investigated algorithms have been presented, categorizing them in function of the restored image structure. Based on these experiments, we have proposed an adaptation of Oliveira's and Hadhoud's algorithms, which are performing well on images with natural defects.

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(a) Original image; (b) result for Oliveira's method; (c) result for our adaptation of Oliveira's method; (d) result for Hadhoud's method; (e) result for our adaptation of Hadhoud's method.
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fig10: (a) Original image; (b) result for Oliveira's method; (c) result for our adaptation of Oliveira's method; (d) result for Hadhoud's method; (e) result for our adaptation of Hadhoud's method.

Mentions: However, the visual restoration is satisfactory, as it can be seen from Figures 10(c) and 10(e), and is processed using our proposed method for edge preserving applied to Oliveira's and Hadhoud's methods, respectively. In comparison with the original Oliveira method, where the obtained edge was blurred (as shown in Figure 10(b)), our approach offers better contour preservation (Figure 10(c)). Also, due to the kernel used in Hadhoud's method, the edge is altered (Figure 10(d)). However, applying the proposed method in combination with Hadhoud's leads to good visual results (Figure 10(e)). We will conclude that using our new procedure, in combination with Oliveira's and Hadhoud's methods, will offer advantages in the case of natural defects images such as Lincoln and Three Girls.


Image inpainting methods evaluation and improvement.

Vreja R, Brad R - ScientificWorldJournal (2014)

(a) Original image; (b) result for Oliveira's method; (c) result for our adaptation of Oliveira's method; (d) result for Hadhoud's method; (e) result for our adaptation of Hadhoud's method.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4127254&req=5

fig10: (a) Original image; (b) result for Oliveira's method; (c) result for our adaptation of Oliveira's method; (d) result for Hadhoud's method; (e) result for our adaptation of Hadhoud's method.
Mentions: However, the visual restoration is satisfactory, as it can be seen from Figures 10(c) and 10(e), and is processed using our proposed method for edge preserving applied to Oliveira's and Hadhoud's methods, respectively. In comparison with the original Oliveira method, where the obtained edge was blurred (as shown in Figure 10(b)), our approach offers better contour preservation (Figure 10(c)). Also, due to the kernel used in Hadhoud's method, the edge is altered (Figure 10(d)). However, applying the proposed method in combination with Hadhoud's leads to good visual results (Figure 10(e)). We will conclude that using our new procedure, in combination with Oliveira's and Hadhoud's methods, will offer advantages in the case of natural defects images such as Lincoln and Three Girls.

Bottom Line: The need for an analytical comparison, beside the visual one, urged us to perform the studies shown in the present paper.Conclusions regarding the performance of the investigated algorithms have been presented, categorizing them in function of the restored image structure.Based on these experiments, we have proposed an adaptation of Oliveira's and Hadhoud's algorithms, which are performing well on images with natural defects.

View Article: PubMed Central - PubMed

Affiliation: Computer Science Department, Lucian Blaga University of Sibiu, B-dul Victoriei 10, 550024 Sibiu, Romania.

ABSTRACT
With the upgrowing of digital processing of images and film archiving, the need for assisted or unsupervised restoration required the development of a series of methods and techniques. Among them, image inpainting is maybe the most impressive and useful. Based on partial derivative equations or texture synthesis, many other hybrid techniques have been proposed recently. The need for an analytical comparison, beside the visual one, urged us to perform the studies shown in the present paper. Starting with an overview of the domain, an evaluation of the five methods was performed using a common benchmark and measuring the PSNR. Conclusions regarding the performance of the investigated algorithms have been presented, categorizing them in function of the restored image structure. Based on these experiments, we have proposed an adaptation of Oliveira's and Hadhoud's algorithms, which are performing well on images with natural defects.

Show MeSH