One of the main disadvantages of any communication system is “channel bandwidth” and “noise”. This paper deals with the former one (i.e. channel bandwidth); the real time images from any source occupy large amount space in any storage device. Hence it consumes maximum bandwidth for transmitting it, there are so many methods to reduce the image size and hence the bandwidth of the signal. This paper deals with wavelet based compression methods. Discrete Wavelet Transform is powerful tool for analyzing the signals, with the help of a thresholding function it'll be more useful in compression; this method is considered as an existing method. This method has some disadvantages like selectivity and shift invariance, so a much better method is proposed. In the proposed method complex wavelets were introduced with custom thresholding for reducing the size of images with less mean square error (MSE) and peak-signal to noise ratio (PSNR).


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Image compression using complex wavelet transform (CWT) with custom thresholding


    Contributors:


    Publication date :

    2017-04-01


    Size :

    322251 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Optimal thresholding in wavelet image compression [2034-24]

    Zeppenfeldt, F. O. / Boerger, J. B. / Koppes, A. et al. | British Library Conference Proceedings | 1993


    Image Compression Algorithm Using Wavelet-Based Contourlet Transform

    Beibei, S. / Luping, X. / Wenfang, S. | British Library Online Contents | 2007


    Lossless hyperspectral image compression using wavelet transform based spectral decorrelation

    Toreyin, Behcet Ugur / Yilmaz, Ozan / Mert, Yakup Murat et al. | IEEE | 2015



    Video Compression Technique Using Wavelet Transform

    Adhami, R. / IEEE; Aerospace and Electronics Systems Society | British Library Conference Proceedings | 1996