Reads the input video file, awaits user input for magnification area 
  selection, then converts the frames to YIC color space applies
  motion magnification and writes the output video.
 
  Input:
    filein              Input video file
    fileout             Output file name
    alpha               see lpiir.m
    lambdaC             see lpiir.m
    lowCutoff           see lpiir.m
    highCutoff          see lpiir.m
    chromAtt            see lpiir.m
    exaggerationFactor  see lpiir.m
    maxframes           Maximum number of frames to be used or 0 if all