You need to convert the image to bitonal before vectorizing.
IDEPTH command
On Thu, 21 Feb 2008 16:51:27 +0000, blz2 <> wrote:
>Specify one-pick point or [2P]:
>No valid raster found.
>
>Thats all I get when I try to vectorize lines on a high resolution image. If the quality of the image I'm using isn't good enough, then something is really wrong with this software. The image is a JPG attached using IMAGEATTACH. Is there some trick to this?
>
>Invalid image type. This command only works on bitonal images. What?! Can't it just vectorize the damn thing??
>
>Message was edited by: blz2
Phil Daley