JPEG image compression standard use DCT (DISCRETE COSINE TRANSFORM) and the discrete cosine transform is a fast transform. It is a widely used and robust method for image compression as encryption and decryption. It has excellent compaction for highly correlated data. DCT has fixed basis images ...
Cryptography is encryption and decryption technique for keep data secure. The main purpose in cryptography is to make message concept unintelligible, while steganography aims to hide personal secret message. For security purpose, digital images are best excellent carriers of hidden information. In this ...
Image information security study image encryption, and decryption image 翻译结果5复制译文编辑译文朗读译文返回顶部 Pictorial information safe research image encryption and image decipher 相关内容 a你能和你的妹妹分享那个苹果吗 You can share that apple with yours younger sister[translate] ...
I am tried encrypting the image by first converting the image from byte to text format as AES encryption server action takes plaintext and key as input and for key I take user input key value and then generate the ciphertext for the same and for decryption of that ciphertext I...
SECURED ENCRYPTION AND DECRYPTION FOR IMAGE TRANSMISSION USING VISUAL CRYPTOGRAPHYWhen communication occurs through images, the images can either be confidential or not. But when we want to transmit an image that has to be known only to the sender and the receiver it becomes complicated. Because, ...
“The 2DCML fractional-order chaotic system” sections the OF-LSTMS and the 2DCML fractional-order chaotic system are presented respectively. The proposed image encryption and decryption scheme are described in “The proposed image encryption and decryption algorithm” section. Simulation results and ...
Image encryption is one of the most effective means to ensure the security of image information in network communications. A new unified image encryption system with identical encryption and decryption algorithms was proposed in this paper. In this system, an external key and the Hénon map are us...
The system parameters of the off-axis Fourier transform in each channel were also keys in image encryption and decryption. The reference wave with certain incident angle and corresponding MLCA mask were exploited when decrypting one of the original images. Some numerical simulations demonstrated the ...
As a kind of spatiotemporal chaos, coupled map lattice (CML) is widely applied into image encryption because of its advantages of more complex dynamical behavior and lower computational overhead. Firstly, this paper proposed a novel spatiotemporal chaos model (MCML) by mixing Logistic, Sine and...
As the numbers of blocks are restricted in advance in the height and width dimensions at the time of performing encryption, the numbers of blocks that need to be taken into consideration can be reduced at the time of detecting the block positions. As a result, the precision of decryption ...