中文摘要：

文章介绍了数字图像修复技术领域中的基于样本块的干涉条纹延拓算法中的Criminis算法,详细分析了经典的Criminis算法模型。针对其不足,提出在优先值计算、置信度更新方面的改进,并将其应用在壁画图像灰度图的修复上,取得了良好的效果。

英文摘要：

Criminis Algorithm in the continuation algorithm of interference fringes based on exemplar patch wasintroduced concerning restoration technology of the digital picture. The classical Criminis algorithm model wasspecifically analyzed and in connection with its shortcomings improved priority value calculation and confidenceupdating were given as well. And it has been used in the image restoration of gray wall panting and achievedgood results.