Implementation of Image Compression Using Discrete Cosine Transform (DCT) and Discrete Wavelet Transform (DWT)

摘要

This research is research on the application of discrete transformation cosine (DCT), discrete wavelet transformation (DWT), and hybrid as a merger of both previous transformations in the process digital image data compression. Compression process done to suppress the source consumption memory power, speed up the transmission process digital image. Image compression is the application of Data compression on digital images. The Discrete Cosine Transform (DCT) is a technique for converting a signal into elementary frequency components. It is widely used in image compression. Discrete Wavelet Transform (DWT) algorithm can compact the energy of image into a small number of coefficient, give combination information of frequency and time, so that more accurate to reconstruct of image.