Normal classes:

DPIImagePNMByteRGBC	Load a RGB image in PPM format.
DPOImagePNMByteRGBC	Save a RGB image in PPM format.
DPIImagePNMByteGreyC	Load a byte image in PGM format.
DPOImagePNMByteGreyC	Save a byte image in PGM format.
DPIImageJPegByteRGBC	Load a RGB image in JPEG format.
DPOImageJPegByteRGBC	Save a RGB image in JPEG format.
DPIImageJPegByteYUVC	Load a YUV image in JPEG format.
DPOImageJPegByteYUVC	Save a YUV image in JPEG format.
DPIImageJPegByteGreyC	Load a Grey image in JPEG format.
DPOImageJPegByteGreyC	Save a Grey image in JPEG format.
DPIImagePNGByteRGBC	Load a RGB image in PPM format.
DPOImagePNGByteRGBC	Save a RGB image in PPM format.
DPIImagePNGByteGreyC	Load a RGB image in PPM format.
DPOImagePNGByteGreyC	Save a RGB image in PPM format.
DPIImageTIFFByteRGBAC	Load a RGB image in PPM format.
DPOImageTIFFByteRGBAC	Save a RGB image in PPM format.

Advanced classes:

FileFormatPPMC	Create an instance of a PPM File Format.
FileFormatPGMC	Create an instance of a PGM File Format.
FileFormatPBMC	Create an instance of a PGM File Format.
FileFormatRGBC	Create an instance of a RGB File Format.
FileFormatJPEGC	Create an instance of a JPEG File Format.
FileFormatPNGC	Create an instance of a PNG File Format.
FileFormatTIFFC	Create an instance of a TIFF File Format.