Our research has showed that SPIHT performs better than JPEG while the underwater images are coded in low bit rate. SPIHT also has a good progressive transmission characteristic.
That is a bit of an understatement, characteristic of a guy who had an old-school upbringing with an emphasis on respect, humility, and a strong work ethic.
Through the read-write analysis of BMP data bit, and combining the document transmission characteristic and MD5 encryption algorithm, electronic document stamping is realized by user.