Tomomi Takashina and Hanno Ackermann R-Based Environment for Image Processing Algorithm Design ********************************************************* This manuscript reports the application of S for image processing, as one of the fields in which statistics isn't used explicitly. The conciseness and expressiveness of the S language are expected to support developers in image processing strongly. The authors have developed rimage, an image processing library for R, and IBASE-0, an integrated database for image processing algorithm design. rimage library is a collection of image processing functions in which C routines are used for speed improvement. In IBASE-0, an user can describe image operation in the S language and can apply such operations to the selected images through WWW browser. The authors conclude that R can be successfully integrated in practical development process in the image engineering field.