Void makeJPEG(Image img, Int qual=-1, String file="")
Arguments
img: The imagequal: The image quality (0..95). Alternatively, any negative number will use the default output quality.file: The file name to write to. This argument may be omitted to use standard output, which is useful in CGI scripts - call CGI::flush first to ensure the headers have been sent.
Usage
Outputs a JPEG from the image. This function should not be used with standard output in the webapp model - use webJPEG instead.
