De-skew distorted image

Posted by nan0guy on Apr 20, 2011; 4:54am
URL: http://imagej.273.s1.nabble.com/De-skew-distorted-image-tp3684884.html

I have topographic data (converted to greyscale) from force microscopy that is distorted by drift in a fairly uniform way. The rate of drift is not know, but since the structure has a well-defined geometric structure, I can establish an a priori scan distortion (assuming it is linear).

My question is, how can I apply such a distortion to the data in ImageJ?  What I am looking for is the equivalent of the skew transformation in Photoshop.  This could probably be done with a line by line shift of the data, but I do not know how to do this.

If anyone knows of a plugin which can do this, or could provide me with some direction of how to modify an image line by line, I would appreciate it.

Thanks,

Lloyd Carroll