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Using the fractal set directly as the key is the common method. In the fractal research field, image encryptions are also explored. For example, Chen produced a key through 3D chaotic cat maps and operated a pixel value with XOR to get the cipher image. Among the algorithms utilizing the keys, there has been a great deal of research in chaotic cryptography. Combining the encryption with other data processing technologies, Hermassi introduced a new scheme based on joint compression and encryption using the Huffman code. Some algorithms are proposed according to the characteristics of the image itself, such as Yuen’s proposal of a chaos-based joint image compression and encryption algorithm using discrete cosine transformation (DCT) and Secure Hash Algorithm-1 (SHA-1). For instance, Shyu used random grids to accomplish the encryption of secret gray-scale and color images.
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Some algorithms are based on certain transformation rules. So, among the popular applications of multimedia, research on image encryption has both theoretical and practical significance.Ĭurrently, there are various kinds of image encryption techniques, including image-scrambling-based techniques, data-processing-based techniques, key-based encryption techniques, etc. Because the digital images have special coding structures and large amounts of data, the conventional encryption algorithm may change the original data format in the image encryption.
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Therefore, they have highly computational complexity. Most conventional encryption algorithms put the emphasis on text data or binary data. Nowadays, image encryption has been a focus in the research of information security. Especially because digital images contain so much information, security for images is a widespread concern. Due to a large number of threats against communications security, information protection has become an important issue. Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying.With the increasingly wide reach of the Internet, communications via Internet are getting more frequent. These charges are the buyer's responsibility. Attention economy shipping:takes about 15-25 days with tracking & no insurance standard shipping:takes about 10-14 days with tracking & small insurance expedited:takes about 5-8 days, with tracking number & perfect insurance About Us Import duties, taxes and charges are not included in the item price or shipping charges. Yujin SRDX Mai Shiranui Statue (King of Fighters, Fatal Fury, snk) Product Description 100% Authentic, Official Quality figure Condition( New > Mint > VeryGood > Good ) Used - VeryGood Brand Payment We accept PayPal as payment. Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying. :root Yujin SRDX Mai Shiranui Statue (King of Fighters, Fatal Fury, snk)Product Description100% Authentic, Official Quality figureCondition( New > Mint > VeryGood > Good )Used - VeryGoodBrandPaymentWe accept PayPal as payment.Attentioneconomy shipping:takes about 15-25 days with tracking & no insurancestandard shipping:takes about 10-14 days with tracking & small insuranceexpedited:takes about 5-8 days, with tracking number & perfect insuranceAbout UsImport duties, taxes and charges are not included in the item price or shipping charges. Item: 183906176315 Yujin SRDX Mai Shiranui Statue (King of Fighters, Fatal Fury, SNK).