Re: Need Help - comparing two images

Posted by Lu2 on May 12, 2014; 7:05pm
URL: http://imagej.273.s1.nabble.com/Need-Help-comparing-two-images-tp5007684p5007704.html

Hello Rich,

I don't now how to make the two mentioned pictures  - the original and copy same width and height in pixels.

I just try to copy screen and then try to find some way how to compare them between each other.

You might be right the scale could be problem.

But I hope that ImageJ has some tool to set up
same scale as the dimensions are known at the start. See attached images.

First one is original
in PDF format and the other one is DXF copy (both copy screens, as I am not able to process orignal formats as PDF or DXF) which we need to compare after redraw by hand in DXF format. Original PDF picture has dimensions on it.

The copy which is basically copy screen of DXF file
has to to be same but sometimes is not as is shown on the other picture I have attached.

So what I am looking for is simple and fast way how to overlap them in some independent levels
and compere them where we have made mistake by process of redrawing them manually.

Thanks for help

Regards

Ludek