You could always use convert from imagemagick to convert the jpeg into some other format.
Would that suit your needs? That said, for me readjpeg reads in a megabyte jpeg file in a fraction of a second. So I do not know what has gone wrong for you. Thanks, -- Raul On Sun, Apr 19, 2015 at 3:26 PM, Devon McCormick <[email protected]> wrote: > All - > > I find my efforts to move fully onto J8 stymied by the inadequate support > for .JPG image files in the jpeg addon. When I attempt to read a valid > file that can be read properly by at least 2 other applications, I get the > error "invalid JPEG file". The proximate cause of this error is a zero > returned by "isJpeg" which is checking for 9 of the first 11 bytes of my > file to have specific values. > > I can kluge this to accept the headers of the files it's currently > rejecting but, in any case, this version of "readjpeg" is excruciatingly > slow: it takes about 30 seconds to read in a file that's well under 300K. > > Does anyone have any ideas for alternatives to the existing J8 jpeg > reader? I'd prefer not to continue to use the old J7 gtk-based ones but > see no other way for now. > > Thanks, > > Devon > > -- > Devon McCormick, CFA > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
