DF24 - Single-file 24-Bit Raster Image Interface

DF24addimage/d2aimg	Writes a 24-bit image to the specified file.
DF24getdims/d2gdims	Retrieves dimensions and interlace storage scheme of next image.
DF24getimage/d2gimg	Retrieves an image from the next 24-bit raster image set.
DF24lastref/d2lref	Retrieves the last reference number written to or read from a 24-bit raster image set.
DF24nimages/d2nimg	Counts the number of 24-bit raster images contained in an HDF file.
DF24putimage/d2pimg	Writes a 24-bit image as the first image in the file.
DF24readref/d2rref	Specifies the reference number of the next image to be read when DF24getimage is next called.
DF24reqil/d2reqil	Specifies the interlace mode for the next call to DF24getimage will use.
DF24restart/d2first	Specifies that the next 24-bit image read from the file will be the first one rather than the 24-bit image following the one most recently read.
DF24setcompress/d2scomp	Set the type of compression to use when writing the next 24-bit raster image.
d2scomp	Fortran-specific routine that sets the parameters needed for the JPEG algorithm.
d2sjpeg	Fortran-specific routine that sets the parameters needed for the JPEG algorithm.
DF24setdims/d2sdims	Set the dimensions of the next image to be written to a file.
DF24setil/d2setil	Specifies the interlace mode to be used on subsequent writes.