F.2 Image files
Since images are regular arrays, the sizes of image files are easier to calculate. The images are stored as
floating-point numbers, i.e., 32 bits per pixel, so the image file size in bytes is given by
length(i) is the number of pixels on the ith axis. For example, a 128-channel cube with each plane a 256 × 256 image
will require around 34 Mbytes of disk storage space. This may be increased a little due to the way in which the
system allocates space for files.