Name
       speedtest - CPU test for image processing

Synopsis
       speedtest

Description
       speedtest  performs  several  classical  image  processing
       operations, and reports the time spent on CPU. The follow-
       ing tests are applied:

       uniformly distributed noise generation
       filtering by 3x3 kernel convolution
       filtering by 5x5 kernel convolution
       median filtering with 3x3 kernel
       statistics computation
       fast fourier transform
       resampling by a zoom factor of 2.0

       speedtest  starts  by generating an image containing noise
       only, and then performs all the above operations  on  this
       image,  and outputs CPU times for each test. CPU times are
       given for the total time in seconds and  the  average  per
       pixel  time  in microseconds. The total and per pixel time
       are given for all the tests.

       Notice that the given time values  are  only  estimations,
       since  they are based on wall clock time, not on CPU time.
       Your results will vary depending on the machine  workload.