ضغط الصورة الرقمية باستخدام التكميم المتجهة

Vector quantization (VQ), is a powerful technique for low-bit rate image coding. In vector quantization, the first step is to decompose the input image into a set of vectors. A subset of vectors is then chosen as the training sequence from which the code-book is generated, normally by using the generalized LIOYD clustering algorithm proposed by LINDE, BUZO and GRAY (LBG). In this paper, we are introduced image compression algorithm based on vector quantization, that Include three stages (generate code-book using (LBG) algorithm, coding and decoding), the reconstruction of images can beimplemented by using simple table look-up technique. The results give a good image quality with high compression ratios.