int pdf_open_image ( resource pdfdoc, string imagetype, string source, string data, int length, int width, int height, int components, int bpc, string params )
Use image data from a variety of data sources. Supported types are
jpeg, ccitt, raw.
Supported sources are memory, fileref,
url. len is only used when type is
raw, params is only used when type
is ccitt.
