LZW compression technology was developed by Lempel, Ziv andWelch three invention, this compression technologySurgery is often the string by placing code toBit reduce the number, the compression will not sacrifice pictureSurface quality, but can not set the compression ratioValues.LZW coding algorithm is a string data doCoded. These string in the original image dataConsistent sequence of pixel values??. It does this by creating aA string table, which contains the string as well andIt corresponds to the color code represents. InRead data at the same time update the string.When confronted in the encoding process when a new stringFor the distribution of a new code to represent them in mindRecorded in the string table. If you encounter aAmong the string table string already, use andThat string corresponding code to represent thestring value.LZW algorithm applies to the original data changes frequentlyComplicated but there are many cases of duplication in partNext.Its applications are:An orderOrderTransmission as long as the first value in the image, misuseThere a value difference can be sent to the other party.