... Up: Data Analysis Software and Systems . ... PyDrizzle and Specview have been developed at STScI to simplify the tasks of working with images and spectra, respectively. ... The tasks use the IRAF tasks drizzle and blot from the STSDAS dither package which implements the Drizzle algorithm (Fruchter & Hook 2002) to remove distortion and combine images. ... The xytosky task demonstrates how the methods from PyDrizzle can be developed into a separate task for use on data from any supported instrument. ...