There are advantages in using large images, a wider range of box sizes are possible and therefore the resulting estimate of D will generally be better. The reduction factor is shown as part of the window name. If the object under study extends past the rectangle in reality then it should be noted that the software effectively truncates it at the image rectangle boundary. Since the box size is limited to the pixel boundaries the number of offsets is dependent on the box size. To avoid the enormous time required to search all possible origins a random number of origins are chosen for a particular box size.
Offsets can greatly increase computation time, use with care.
Clover-period will cancel box counting operations, the results will be valid up to that point at which the cancel took place. Box calculations will run in the background. The application will run in the background under MultiFinder or system 7, however it takes rather large chunks of processing time and foreground application may be adversly affected. Trace edges works by applying the following mask to the image, the 1 pixel border of the image is set to white. This program will read and interpret any legal PICT file.