Image compression plays a very important role in the transmission and storage of image data. And to work with them in some applications there is need to be compressed. Images are vital documents today’s digital world. Introduction An image is an artifact that records visual perception. Keywords: image compression, lossless and lossy compression, LZW, DC, DWT, VQ compression.ġ. and based on the review guidelines are provided to choose best algorithm for an image. This paper shows review of different existing techniques which is available lossless and lossy compression such as Huffman coding, LZW coding, DCT, DWT, VQ compression etc. It can be achieved by removing the redundancy present in the image. The prime focus of image compression technique is to reduce the number of the image pixel elements without affecting the original image. Hence, the compressed images suffer from block artifacts. Image compression reduces the image fidelity, when an image is compressed at low bitrates. Moreover it is helpful to increase storage and transmission process performance. University, Baroda Abstract: Image compression is a technique that can reduce the storage space of images and videos. Tutorial review on existing image compression techniques Bhavna Pancholi, Reena Shah, Mitul Modi Department of Electrical Engineering Faculty of Technology and Engineering The M. International Journal Of Engineering And Computer Science ISSN:2319-7242 Volume 3 Issue 8 August, 2014 Page No.
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