88 страниц. 2014 год. LAP Lambert Academic Publishing This work addresses the area of the data compression as it is applicable to the image processing. An analysis of the Discrete Cosine Transformation, Wavelet Transformation (Haar Transformation) and Simultaneous Encryption and Compression are made. These three image compression strategies are examined for their relative effectiveness. Finally a performance comparison is made between these techniques (on variety of Standard Test Images considering parameters such as data reduction ratios).