A Review About Virtual Restoration of Ancient Murals

Öz

Ancient murals provide us invaluable information about the history, culture and art of the people who painted them in the past. But damaged murals limit our knowledge so if it is possible restoration of the ancient mural is mandatory. Since these murals are immovable cultural heritages, they need to be restored in situ. Physical restoration is a high-risk process, and a restoration mistake can irreversibly damage a thousand-year-old mural. Nowadays, thanks to the increasing computational capabilities, significant advancements have been achieved in image processing techniques. Today, virtual restoration of ancient murals could be done with the support of digital image processing techniques. Thanks to virtual restoration, restoration preview and guidance for the restoration artists can be performed without any intervention to the original mural. In this way, the physical restoration process can be carried out more accurately. Image processing techniques are used in digital archiving of ancient murals, enhancement of details and color in faded murals, inpainting missing parts of faint murals, analyzing superimposed motifs, removing cracks, and identifying the materials used for painting. In this review, digital image processing techniques used in the virtual restoration of ancient murals are discussed.

Anahtar Kelimeler

• Virtual restoration
• ancient murals
• inpainting
• enhancement

Antik Duvar Resimlerinin Sanal Restorasyonu Hakkında Bir İnceleme

Öz

Antik duvar resimleri bize geçmişte onları yaratan insanların tarihi, kültürü ve sanatı hakkında paha biçilmez bilgiler sağlar. Ancak hasarlı duvar resimleri onlardan elde edebileceğimiz bilgiyi sınırlar, bu nedenle mümkünse antik duvar resimlerinin restorasyonu gereklidir. Duvar resimleri taşınmaz kültürel varlıkları olduğundan, yerinde restore edilmeleri gerekir. Fiziksel restorasyon riskli bir işlemdir ve restorasyonda yapılacak bir hata bin yıllık bir duvar resmine geri dönülemez zararlar verebilir. Günümüzde bilgisayar tabanlı hesaplama yeteneklerinin artmasıyla görüntü işleme tekniklerinde önemli ilerlemeler kaydedilmiştir. Bugün dijital görüntü işleme tekniklerinin desteğiyle antik duvar resimlerinin sanal restorasyonu yapılabilmektedir. Sanal restorasyon sayesinde, orijinal duvar resmine fiziki hiçbir müdahalede bulunulmadan restorasyon ön izlemesi ve restorasyon sanatçılarına rehberlik yapılabilmektedir. Bu sayede fiziksel restorasyon süreci daha sağlıklı bir şekilde gerçekleştirilebilmektedir. Görüntü işleme teknikleri, antik duvar resimlerinin dijital arşivlenmesinde, soluk duvar resimlerindeki detayların ve renklerin belirginleştirilmesinde, yıpranmış duvar resimlerinde eksik kısımların tamamlanmasında, üst üste binen motiflerin analizinde, resim yüzeyindeki çatlakların giderilmesinde ve boyamada kullanılan malzemelerin belirlenmesinde kullanılmaktadır. Bu derlemede antik duvar resimlerinin sanal restorasyonunda kullanılan dijital görüntü işleme teknikleri ele alınmaktadır.

Anahtar Kelimeler

• Sanal restorasyon
• antik duvar resimleri
• resim tamamlama
• resim iyileştirme

Kaynakça

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