Lossy still image compression standards: JPEG and JPEG2000 - a survey

• Autores: S. N. Sivanandam, A. Pasumpon, P. Rani
• Localización: International journal of the computer, the internet and management, ISSN 0858-7027, Vol. 17, Nº. 2 (MAY-AGO), 2009, págs. 69-84
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Still Image Compression is an important issue in Internet, mobile communication, digital library, digital photography, multimedia, teleconferencing and other applications. Application areas of Image Compression would focus on the problem of optimizing storage space and transmission bandwidth. The Two Dimensional Discrete Cosine Transform (2D-DCT) is an integral part of video and image compression; which is used in both the Joint Photographic Experts Group (JPEG) and Moving Picture Experts Group (MPEG) encoding standards. Research advances in fractal and wavelet theory have created a surge of interest in image compression. This fall into two general categories: lossless and lossy image compression. The JPEG and JPEG 2000 standards are widely used for image compression that centers on the Discrete Cosine and Fast Wavelet Transform with entropy coding. The levels of distortion can be adjusted during the compression stage by applying the Scaling and quantization parameters on the still images using these standards. This paper focused on the survey of popular lossy still image compression standards JPEG and JPEG 2000. These standards achieve maximum compression ratio with optimum Root Mean Square (RMS) error.