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This paper proposes a novel confusion and diffusion algorithm for image encryption based on logistic map and cheat image. We choose the initial condition and control parameter of logistic map as the secret key. The cheat image selected from the most common images in public network, together with the chaotic matrices generated by logistic maps, is employed both in encryption and decryption processes...
In this paper, a novel image cheat-encryption algori-thm based on hyper-chaotic Chen-system is proposed. The hyper-chaos is employed to encrypt plain image into cheat-like image. The cheat-image is transferred in network and easily neglected by attackers. If cheat succeeds, it is impossible to decrypt. When the cheat-image fails to cheat the attackers, security and performance analysis shows the cheat-encryption...
Single-sensor digital cameras capture images by covering the sensor surface with a color filter array (CFA) such that only one color sample is taken at the location of each pixel. To render a full-color image, color CFA interpolation or demosaicing using neighboring samples as a very important part of video/image processing, is required to estimate values of the other colors at each pixel. However,...
This paper presents a new resume algorithm for video image which is disturbed by motion blur. For innovation, the new algorithm makes the denoised region of motion object as the primary target, and with the discrete model, it gets valuable result. Firstly, the method calculates the differences between the neighboring frames. Secondly, it calculates the quadrinomial moment pixel by pixel to differentiate...
DM642 is a DSP chip launched by TI Company specifically for image processing. Based on the C64X series chips, it appends a number of peripheral equipments and interface ports, which make DM642 more suitable to process video code-streams. The paper introduces the SEED's DM642 development platform and the structure and performance related to video encoding and decoding, and achieves the gray-scale projection...
This paper introduces an electronic image-stabilizing system via gyro. It adopts the high-precise MEMS gyro to estimate the motion vector. And then by using digital image process technique, compensation of jittering image sequence can be realized. It is testified by ship-borne reconnaissance system that this system can really produce high image stabilizing precision, present excellent real time processing...
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