نتایج جستجو برای: bit planes
تعداد نتایج: 76662 فیلتر نتایج به سال:
This work introduces a new algorithm for gray-scale image compression using mathematical morphology tools. In order to get a good compression ratio, a bit-plane decomposition is used. Different planes are coded by different methods. The first 4 more significant planes are coded by a combined boundary-sceleton technique, because they are preserving the most important part of information. For the...
In this paper a colour image data compression method using block truncation coding (BTC) and genetic Algorithm (GA) is presented. This compression technique reduces the computational complexity and provides acceptable visual quality reconstructed images. BTC acts as the basic compression technique but it exhibits two disadvantages such as the false contour and blocking effect. Hence error diffu...
In this paper, a palmprint recognition system using bit-plane extraction with MLP neural network is presented. It is an approach where the palmprint feature is extracted by slicing the image into 8 bit-planes. The extracted bit-planes are then serves as input data into the neural network. MLP neural network is applied to train and test images for recognition. Networks are simulated for a few co...
It is well known that one can improve the coding ee-ciency by employing high-order conditional probability. However, it is very diicult to implement compression of grayscale image using high-order conditional entropy (HOCE) coding due to the requirement of a huge table of conditional pdf's. This paper presents a method to cope this problem. We use the bit-plane decomposition as an alternative t...
Weighted Finite Automata (WFA) is an efficient structure for digital image storage and is successfully applied for the image compression purpose. This paper introduces the idea of slicing image into eight bit planes and then compressing each bit planes individually using proposed WFA inference algorithm. Furthermore, the proposed algorithm uses the concept of invertible resolution wise mapping ...
—A novel adaptive image hiding algorithm was presented in this paper. The proposed algorithm is developed based on singular value decomposition (SVD) and wavelet packets transform (WPT). Firstly, bit plane decomposition (BPD) and WPT are separately implemented on the secret image and the carrier image. Secondly, the bit planes with important information are hidden into the singular value matri...
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