实际应用中JPEG图像快速解码的研究

his paper analyzes the standard JPEG image decoding process, and for some specific applications of consumer electronics products, such as preview thumbnails, display photos,puts forward a method of JPEG images fast decoding. Now photos taken by the digital camera have more and more pixels, if according to the standard JPEG decoding process to decode image it must takes a long time. This paper simplify and optimize the standard JPEG image decoding process, which make the decoding speed greatly improved, that can reduce the power consumption of products and improve product performance, so this method has some theoretical significance and application value.