topic Re: Create world file from image corners in Data Management Questions

Create world file from image corners

ChrisStally — Thu, 07 Apr 2011 09:36:30 GMT

I have a number of tiff images and the only metadata available is the resolution (width and height) of each image.
I receive the 4 image coordinates from an external database (the top-left, top-right, bottom-right and bottom-left corners).

I want to create a world file for the images (which are by the way rotated, so line 2 and line 3 in the world file won't be 0) with only the image height, width and corners available.

I searched the forum and googled the problem, without any result.

Does anyone know how to do this?

Re: Create world file from image corners

RobertBerger — Tue, 12 Apr 2011 19:14:26 GMT

Greetings,

Yes, you can do this. One way to do this is using the "warp" geoprocessing tool. Here you input your pixel and the known location in space. After you write out the new dataset which now has the coordinates you supplied, you can use the write the world file using the tool.
Also, if you know all the parameters needed, you can do the math yourself to create the world file. For more information, look at this help document.
Hope this helps.

Robert

Re: Create world file from image corners

ChrisStally — Thu, 14 Apr 2011 05:50:17 GMT

Thank you. I'll try that

Re: Create world file from image corners

RuthOla — Fri, 04 Jan 2013 23:34:27 GMT

Hi,
I am having similar issue with creating world file. I know the lower left coordinates, width, height and the pixel size. Please how did you calculate the rotation parameters B and D?