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Types of Compressions are: Lossy image Compression Lossless image compression Image by GIF compresses images in two ways: first, by reducing the number of colors in rich color images, thus reducing the number of bits per pixel. IMAGE COMPRESSION STANDARDS BY, M.SUJITHA, II-M.SC(CS&IT), Nadar Sarawathi College Of Arts And Science, Theni. JPEG is an image compression standard that was developed by the Joint Photographic Experts Group. Abstract: A joint ISO/CCITT committee known as JPEG (Joint Photographic Experts Group) has been working to establish the first international compression standard for continuous-tone still images, both grayscale and color. JPEG 2000, a new international standard for still image compression, is discussed at length. INTRODUCTION Image compression is a type of data compression applied to digital images. Figure 2 describes the basic parts of a JPEG compression system. Jpeg compression standard is a lossy compression where the quality of the image is reduced. Jpeg XS, on the other hand, is said to have no visual loss to the image compressed. 2. This initiative, which was named JPEG 2000, has resulted in a comprehensive standard (ISO 15444∣ITU-T Recommendation T.800) that is being issued in six parts. To meet the differing needs of many applications, the … Jpeg images are compressed by a factor of 10 whereas Jpeg XS images are compressed by a factor of 6. Title: Image Compression Standards 1 Chapter 9 Image Compression Standards 9.1 The JPEG Standard 9.2 The JPEG2000 Standard 9.3 The JPEG-LS Standard 9.4 Bi-level Image Compression Standards 2. GIF is still a popular image format on the internet because image size is relatively small compared to other image compression types. JPEG's proposed standard aims to be generic, to support a wide variety of applications for continuous-tone images. Algorithms may take advantage of visual perception. The JPEG standard; 3. JPEG was formally accepted as an The color image (which is represented by three basic color images Red, Green, and Blue) are transformed into the equivalent luminance and chrominance images (Y, U, and V), using the transform formular as shown in the previous section. We concentrate on lossy compression techniques and ISO and ITU-T standards. JPEG image compression standard is described and its successor, currently developed JPEG-2000 is mentioned. In 1996, the JPEG committee began to investigate possibilities for a new still image compression standard to serve current and future applications. It is used to reduce their cost for storage or transmission. JPEG Image Compression System.

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