کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4960320 1446450 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Restoration of stained old manuscripts via a hybrid wavelet and bilateral filtering system
ترجمه فارسی عنوان
مرمت نسخه های خطی قدیمی از طریق موجک ترکیبی و سیستم فیلترینگ دو طرفه
کلمات کلیدی
موجک، تجزیه و تحلیل چند مقیاس فیلتر دو طرفه، ترمیم، نسخ خطی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر علوم کامپیوتر (عمومی)
چکیده انگلیسی

The conservation and restoration of old stained manuscripts is an activity devoted to the preservation and protection of things of historical and personal significance made mainly from paper, parchment, and skin. We present in this paper a hybrid implementation for de-noising and restoration of old degraded and stained manuscripts. This implementation is based on the statistical dependence of the wavelet coefficients of type Ortho-normal Wavelet Thresholding Algorithm based on the principle of Stein's Unbiased Risk-Estimate Linear Expansion of Thresholds (OWT SURE-LET) and the synergy with bilateral filtering. First, the non-biased quadratic risk Stein estimator is applied to de-noise images corrupted by white Gaussian noise. In a second step, an improved bilateral filter is introduced to smooth and eliminate unnecessary details with the advantage of preserving edges between image regions. Obtained results show the effectiveness of the proposed synergy compared to separated approaches both on gray scale images and stained old manuscript.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of King Saud University - Computer and Information Sciences - Volume 29, Issue 4, October 2017, Pages 493-498
نویسندگان
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