4 Commits (114afed869dc55d4fba10fcfc768ba580786ec92)

Author SHA1 Message Date
  sam b74fad466b * Implement difference, multiply, divide, screen and overlay blend methods. 16 years ago
  sam da84205cde * subadd.c: add pipi_sub() and pipi_add() as another way to combine two 16 years ago
  sam 6fb5354eff * minmax.c: add pipi_min() and pipi_max() as another way to combine two 16 years ago
  sam 9bd6b555f9 * mean.c: implement pipi_mean() to compute a mean image. 16 years ago