ImageUtil_unixchop_extension' fname is the same as Filename.chop_extension fname but if fname does not have an extension, fname is returned instead of raising Invalid_argument.
get_extension fname returns the extension of the file fname. If the file does not have an extension, Invalid_argument is raised.
get_extension' fname is the same as get_extension fname but if fname does not have an extension, the empty string is returned and no exception is raised.
val chunk_reader_of_in_channel : Stdlib.in_channel -> ImageUtil.chunk_readerval chunk_writer_of_out_channel : Stdlib.out_channel -> ImageUtil.chunk_writerval chunk_reader_of_path : string -> ImageUtil.chunk_readerval chunk_writer_of_path : string -> ImageUtil.chunk_writerDefine an output channel for the builtin buffered output on Uix. see ImageChannels for more info