wavelet-based compression algorithms
Encoding Time Reduction Method for the Wavelet Based Fractal Image Compression
... and wavelet-based coding described in Section III-B below was reported independently and nearly simultaneously by this author [13], by Krupnik, Malah, and Karnin [14], and by van de Walle ...the ...
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On robustness against JPEG2000: a performance evaluation of wavelet based watermarking techniques
... Many wavelet-based robust watermarking techniques robust to such JPEG2000 compression attacks are proposed in the ...such wavelet based image watermarking techniques against JPEG2000 ...
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COMPARATIVE STUDY ON WAVELET BASED IMAGE COMPRESSION TECHNIQUES: A REVIEW
... Image compression has become an important operation in the area of image ...processing. Wavelet plays a crucial role in ...image compression techniques by using wavelets with their PSNR values and ...
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Image Compression Using SPIHT
... image compression is now ...image compression. Image compression algorithms based on Discrete Wavelet Transform (DWT),such as Embedded Zero Wavelet (EZW)[3] which produces ...
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Coiflet Wavelet Transform Image Compression Based On JPEG Images
... Basic compression process can be used for compressing images but the result is not so good because the images have some unique features that can be used by encoders specially designed for ...image ...
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EEG COMPRESSION USING WAVELET BASED EBCOT ALGORITHM
... domain, wavelet transform is applied in most of the compression ...mother wavelet (ψ) by the use of dilation and ...after wavelet decomposition gives an alternative representation of the ...
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ENHANCEMENT OF IMAGE QUALITY USING CURVELET
... image compression and image denoising techniques of image processing, this analysis of digital image is based on wavelet transform and curvelet transform, both transform are based on the multi ...
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Comparison of DCT and wavelet based image compression Techniques
... Image compression defines as reducing the amount of data required to represent digital ...image compression is very importance and ...image compression (1) lossless compression and (2) lossy ...
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Hybrid Image Compression using orthogonal wavelets
... way based on the design of wavelets. Wavelet algorithms process data at different scales or ...a wavelet of some practical utility, we rarely start by drawing a ...the wavelet and ...
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Medical Image Compression Based on Combining Region Growing and Wavelet Transform
... Image compression is the process of encoding information using fewer bits than an un-encoded representation using specific encoding ...schemes. Compression is useful because it helps to reduce the ...
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OPTIMAL PARAMETERS SELECTION TO REDUCE CUTTING TEMPERATURE OF MILD STEEL USING PARTICLE SWARM OPTIMIZATION INTELLIGENT TECHNIQUE
... works based on image compression are presented and in this section, we discuss some of the prominent ...geometric wavelet (GW) image coding method by the use of the slope intercept representation of ...
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Histogram Equilization on Wavelet based Compression Techniques
... the wavelet based compression techniques. Image compression is re- ducing the size of an image using one of the encoding tech- ...among algorithms has been made with respect to PSNR ...
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Survey paper on image compression techniques
... current wavelet approach applies a wavelet transform on images in a pyramid fashion up to the desired scale using the theory of multi resolution signal decomposition with the wavelet representation ...
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A STUDY OF WAVELET BASED IMAGE COMPRESSION ALGORITHMS
... data. Wavelet is the image compression ...Discrete Wavelet Transforms ...scale. Wavelet algorithms can process data at different scales or ...image compression are Haar, ...
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An Image Compression Method Based on Wavelet Transform and Neural Network
... Image compression is to compress the redundancy between the pixels as much as possible by using the correlation between the neighborhood pixels so as to reduce the transmission bandwidth and the storage ...of ...
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Design and Implementation of an Efficient Gray Image Compression technique Using Fuzzyfied Discrete Wavelet Transform
... image compression is advantageous to reduce these ...fast compression techniques. For still image compression, the Joint Photographic Experts Group' or JPEG standard has been established by ISO ...
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Wavelet based Image Compression of Quasi Encrypted Grayscale Images
... the compression of encrypted grayscale ...using wavelet-based image compression ...different wavelet functions on encrypted images to get an improved PSNR value and compression ...
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Web-graph pre-compression for similarity based algorithms
... indexed based on their similarity, similar pages will be grouped ...Community based [13] approaches that find web-communities in order to group them together usually suffer from very low speed due to high ...
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Image Compression Using Adaptive Haar Wavelet Based Tetrolet Transform
... We will address the costs of storing additional adaptivity information. It is well known that a vector of length N and with entropy E can be stored with N · E bits. Hence, the entropy describes the required bits per ...
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Analysis of Wavelet-based Transform Compression Techniques on Medical Image
... image compression and reconstruction, a number of different mathematical transforms are used according to their suitability for different methods which are classified as lossless or lossy compression ...
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