A Comprehensive Review About Image Encryption Methods

Öz

In today’s technology world, data security has a great importance. Because each data type has its own characteristics, there are various methods of providing this security. The main subject of this study is the security of image data which are more complex structures than text data. Using traditional encryption methods alone to ensure security in image data types can create security weaknesses. For this reason, nowadays, some traditional methods are combined with each other or different methods to encrypt image data. In this study, 131 articles were examined and image encryption methods were classified according to the traditional methods they contain. Studies on both colored and gray level images have been handled together. Finally, the images used in the articles were compared with each other in many ways and the results were presented graphically.

Anahtar Kelimeler

• Data security
• Cryptology
• Image processing
• Steganography

Görüntü Şifreleme Yöntemlerinin Kapsamlı Bir İncelemesi

Öz

Günümüz teknoloji dünyasında veri güvenliği büyük önem taşımaktadır. Her veri türünün kendine has özellikleri olduğu için bu güvenliği sağlamanın çeşitli yöntemleri vardır. Bu çalışmanın ana konusu, metin verilerinden daha karmaşık yapılar olan görüntü verilerinin güvenliğidir. Görüntü veri türlerinde güvenliği sağlamak için tek başına geleneksel şifreleme yöntemlerini kullanmak güvenlik zafiyetleri yaratabilir. Bu nedenle günümüzde görüntü verilerini şifrelemek için bazı geleneksel yöntemler birbiriyle veya farklı yöntemler ile birleştirilmektedir. Bu çalışmada 131 makale incelenmiş ve görüntü şifreleme yöntemleri içerdikleri geleneksel yöntemlere göre sınıflandırılmıştır. Hem renkli hem de gri seviyeli görüntüler üzerinde yapılan çalışmalar birlikte ele alınmıştır. Son olarak makalelerde kullanılan görseller birçok yönden birbirleriyle karşılaştırılmış ve sonuçlar grafiksel olarak sunulmuştur.

Anahtar Kelimeler

• Veri güvenliği
• Görüntü işleme
• Steganografi
• Kriptoloji

Kaynakça

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