Re: MI multiple raster image registration

[Kazuhiko Yamashita]

Hi Grantley, > I am writing to ask what may be a very simple question which has me stuck > being a relatively novice user of MapInfo. I am using MI 6 Pro, and I have > scanned two 1:100 000 maps which are both in the same projection and have > the same datum information. Since what you scanned seem to be printed maps, you do not have to be so nervous. You can open one TAB file and open the other as "Current map". If you feel the files are too heavy, try to compress your raster files with ECW compressor which was introduced on this list about a week ago. It is a great compressor. If you are not satisfied with this method, you have to overlay, resize, rotate and merge two raster maps with an image editor, such as Photoshop, Paintshop or GIMP before you register raster files on MapInfo. When I analyzed beach erosion rate, I used several aerial photos. Each aerial photo is distorted to some extent. So I have to rectify these photos, 2D base, before merging rasters. I used a tool called "Rastools". It is an add-on of MapInfo, 500 US$. If the area you are analyzing is mountainous, you have to do that 3D base, so called "Orthorectification". I do not know much about it but listers know some tools. Regards, Hiko Kazuhiko Yamashita Division of Environment & Marine, Kokusai Kogyo co. ltd 3-6-3 Hakataeki-higashi, Hakata-ku, Fukuoka 812-0013 Japan Phone: +81-92-431-7277 FAX: +81-92-431-7275 ---------------------------------------------------------------------- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]