http://www.RoboRealm.com/ The newest forum threads. Tue, 30 Nov 1999 00:11:00 EST en-us Copyright: (C) RoboRealm, http://www.RoboRealm.com/ http://www.RoboRealm.com/ This can be partially helped by the Cylindrical Unwarp module if you rotate by 90 degrees first. See attached robofile.<br><br>However, the amout of curvature will change based on how bent the paper is. In this case, a hardware modification of placing a plane of glass/plastic over it will really be the best solution.<br><br>STeven.<br> http://www.roborealm.com/forum/index.php?thread_id=5921 http://www.roborealm.com/forum/index.php?thread_id=5921 Tue, 30 Nov 1999 00:11:00 EST Have an image [Grid reading.jpg] of a paper. Since real paper is not flat as expected but bent image of that paper is distorted.<br>When I try to crop part of image where my usefull information is (Xs in the grid) have a problem since grid's lines are not straight but curved lines.<br>Any idea how to detect kind of distortion (bent, rotated) and then apply appropriate correction in order to have grid with straight lines?<p><a target=_blank href="http://www.roborealm.com/uploads/29250_1.jpg"><img border=1 src="http://www.roborealm.com/uploads/29250_thumb_1.jpg"></a>&nbsp;<br> http://www.roborealm.com/forum/index.php?thread_id=5921 http://www.roborealm.com/forum/index.php?thread_id=5921 Tue, 30 Nov 1999 00:11:00 EST