We address compression and transmission issues related to images in th
e National Library of Medicine's Visible Human Project. In total, thes
e images amount to about 235 G bytes of data, challenging conventional
storage, retrieval, and transmission methods. Here we discuss lossles
s and lossy methods to compress the images. We also consider advanced
transmission-control protocol approaches plus a multisocket technique
we developed for transmitting images over wide-area networks.