Raster Design - image help

[Openantics]

i received an orthorectified aerial image that is bounded by large white background, which i need to remove and still preserve the coordinate system attributes. i have plunked around with Raster Tools, but fear it is not as simple as a cut/crop tool and was unable to remove this white background.

 

any hints or leads on which tools to use in Raster Design?

 

regards

[Emigrato]

I don't know RD, but for sure you can crop an image (keeping the georeferency) by means of the opensource Qgis, sir.

 

[Murph_map]

Don't have the 2011 version of RD but in 2009 there is a crop tool. Then export the image to a new file and select to create the world file or geotiff.

[BlackBox]

Building on Murph's comments, you may find the ICROPPOLY (Crop Polygonal Region) Command, the IRUBPOLY (Remove Polygonal Region) Command, and/or the ITOUCHUP Command to be of particular use.

 

Also, FWIW, I have worked with RD for LDD 2006, LDC 2009, C3D & MEP 2011, and C3D & MEP 2012 and have not noticed any substantial changes between versions (other than the inclusion of the Ribbon Tab, that is)... Admittedly, I use it infrequently, and certainly not every aspect of RD. I mostly just setup project aerials as a design resource at the beginning of a project these days.

 

HTH

[Openantics]

Don't have the 2011 version of RD but in 2009 there is a crop tool. Then export the image to a new file and select to create the world file or geotiff.

[ATTACH=CONFIG]37806[/ATTACH]

 

i tried in vain with all these tools, but nothing really worked, and was very time consuming. My problem was that i needed to preserve/cut out a very elaborate image "inside" a large, square white rectangle, so the only tool that kind of worked was the polygon tool and it was painstaking and not complete.

 

thanks though for the nice screen shots - they were helpful!

 

OA

[Murph_map]

What didn't work? Can you post the image?

[BlackBox]

Sounds like there may be some weak hardware configuration, methinks (no offense)... I have zero performance lag when modifying a raster image as discussed here.

 

Heck, I have near instantaneous raster image Load & Unload on mouse-over here.

 

Now, when exporting a raster image with world file to another image file format... That's another story. LoL