Re: Just trying to import an image
- To: mathgroup at smc.vnet.net
- Subject: [mg44467] Re: Just trying to import an image
- From: "Steven Shippee" <slshippee at comcast.net>
- Date: Mon, 10 Nov 2003 19:55:52 -0500 (EST)
- Organization: Comcast Online
- References: <bonnfg$h8i$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
To make it easy to debug, try putting the file (the "image") in a root directory somewhere (of your "c" drive or your "d" drive), and also ensure it has no spaces in the file name, for example, use something like c:\practice.jpg or c:\practice.bmp. Then you could run the command myimage=Import["c:\practice.jpg"]; and manipulate myimage from there. Steven shippee at jcs.mil "Bob Harris" <nitlion at mindspring.com> wrote in message news:bonnfg$h8i$1 at smc.vnet.net... > Howdy, > > Have an assignment in an computer vision class I'm taking. Thought I'd try > fiddling around with it in Mathematica. Have run into the second or third > brick wall, just trying to bring an image into Mathematica. Am in need of > help. > > For starters, I found Import[] in the big book and tried it: > Import ["vl100.gif"] > The file vl100.gif is in the same directory as the mathematica notebook that > I launched. But that seems not to be one of the places mathematica looks. > So I just got a file not found error. So be it. > > I figured there must be a way to convince mathematica to look for the file > where e file is. After stumbling around for a while in the book and in the > help browser, I finally found the SetDirectory command. So looking at the > format of file paths in $Path, I did > SetDirectory["Kablooie:ClassesS:VisionS:Project4S"] > which is the path to the directory containing the file. > > So then I tried > Import ["vl100.gif"] > again, and I get > Experimental`RegisterConverter::noexe: Could not find the > executable GIF.exe in any of { <<65>>, <<74>>, <<83>>, GIF.exe}. > > Now, I'm running this using mathematica 4.0.1.0 for the Mac on a PowerMac G3 > running OS 9.0.4. Yes, I know I haven't upgraded in a while, but it sure > seems like what I'm trying to do is supposed to work on my configuration. > > The error message suggests that it doesn't have the executable code to > handle gif images. I tried .pgm format and got the same result. Since both > are listed in the big book I figured it's pointless to try other formats. > Those two should've worked. > > I did a search of my hard drive and I do find a gif.exe (and hdf.exe, > jpeg.exe, pnm.exe, and tiff.exe) in the folder > ... MathematicaS:SystemFiles:Converters:Binaries:PowerMac > So it seems like it's got 'em, and it's just not looking for them. > > Can anyone point me toward a way to get this working? > > Thanks for any help, > Bob H >