Image Encryption

[austin26]

Hello,
I am working for newspaper agency. I want to know how we can protect image or can we encrypt the image. Because i have some very important picture that i want to safe.so how i can protect it ? Anybody know about this ? Any suggestion??

[Sam.D]

Encryption is used to transmit data securely on networks. Each data type has its own characteristics, so different techniques should be used to protect the confidentiality
image data from unauthorized access. Most of the provision encryption algorithms are used mainly for text data and May unsuitable for multimedia data such as images.
n most natural images, the values of neighboring pixels are highly correlated . In order to dissipate the high correlation between pixels and increase the value of entropy, we propose a transformation algorithm that divides the image block and then shuffles their positions before it passes the Blowfish encryption algorithm. Using the correlation and entropy as a measure of security, this process resulting in a lower correlation and a higher value when the entropy compared to using the Blowfish algorithm alone, and thus improve the security of encrypted images.

[ThoMas321]

Encryption is the process of transforming information to ensure its security. With the tremendous growth of computer networks and the latest advances in digital technologies, a enormous amount of digital data is exchanged between different instruments Security networks.The types of digital images has become increasingly important because of the rapid evolution of the Internet in the digital world. The security of digital images
attracted more attention recently, and many other image encryption methods have been proposed to improve the
security of these encryption techniques images Image trying to convert an image to one that is difficult to understand the other side, image decoding recovers the original image of the encrypted one. There are different systems of encryption image to encrypt and decrypt data, and there is no single encryption algorithm satisfies the different image types.

[Raine]

By encrypting your files with Inzomia Image Encrypt you can decide who gets to see your photos. Encrypting images help you protect your privacy and secure company secrets. Viewing encrypted images is as easy as viewing normal images with the image inzomia viewer.Novel encryption algorithm combining the image of the JPEG encoding is proposed. Luminance and chrominance plane, the DCT blocks are confused by the pseudo-random SFC (Space Filling Curves). In each DCT block, DCT coefficients are combined according to different frequency bands and their signs are encrypted by a chaotic stream cipher. The security of the cryptosystem against brute force attack and known-plaintext attack is also analyzed. Experimental results show that the algorithm is of high safety and low cost.