Enhancement of historical printed document images by combining Total Variation regularization and Non-local Means filtering
نویسندگان
چکیده
منابع مشابه
Enhancement of historical printed document images by combining Total Variation regularization and Non-local Means filtering
This paper proposes a novel method for document enhancement which combines two recent powerful noise-reduction steps. The first step is based on the total variation framework. It flattens background grey-levels and produces an intermediate image where background noise is considerably reduced. This image is used as a mask to produce an image with a cleaner background while keeping character deta...
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ژورنال
عنوان ژورنال: Image and Vision Computing
سال: 2011
ISSN: 0262-8856
DOI: 10.1016/j.imavis.2011.01.001