INTERFACE ImageUtils;

IMPORT Rd, Thread, Wr;

EXCEPTION Error;

PROCEDURE SetupGIF(filter: TEXT);

PROCEDURE SetupJPEG(filter: TEXT);

PROCEDURE SetupXBM(filter: TEXT);

PROCEDURE giftopbm (source: Rd.T; dest: Wr.T)
  RAISES {Error, Thread.Alerted};

PROCEDURE jpegtopbm (source: Rd.T; dest: Wr.T)
  RAISES {Error, Thread.Alerted};

PROCEDURE xbmtopbm (source: Rd.T; dest: Wr.T)
  RAISES {Error, Thread.Alerted};

END ImageUtils.