grandpaterry Posted January 19, 2018 Share Posted January 19, 2018 (edited) I've cropped this label and can't figure out how to straighten it. https://www.ebay.com/itm/Hank-Peterson-His-Strangers-I-Remember-You-b-w-Shes-Not-You-Barry-Canada/253218328976?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20131017132637%26meid%3Db4eb6a7826c24779a25fe1661e86d805%26pid%3D100033%26rk%3D8%26rkt%3D8%26sd%3D362180943759&_trksid=p2045573.c100033.m2042 Edited January 20, 2018 by Ego Eram Reputo Added descriptive thread title Quote Link to comment Share on other sites More sharing options...
IRON67 Posted January 19, 2018 Share Posted January 19, 2018 (edited) If you want to correct the perspective sight you could use following plugins: Distort This! Quadrilateral Correction Edited January 19, 2018 by IRON67 Quote Link to comment Share on other sites More sharing options...
MJW Posted January 19, 2018 Share Posted January 19, 2018 @grandpaterry, please don't use generic titles for your threads. It's a forum rule: Quote 6) Thread titles must be descriptive and specific -- NOT generic. You need to use descriptive thread titles. Quote Link to comment Share on other sites More sharing options...
MJW Posted January 20, 2018 Share Posted January 20, 2018 I tried both Distort This! and Quadrilateral Correction without much success. Here's a method that works pretty well, but the values I used were obtained more or less by trial and error. Run my Perspective Transformation plugin on the linked-to image with the following settings: Upper Left: -0.801, -1.057 Upper Right: 1.2689, -1.103 Lower Right: 0.798, 1.009 Lower Left: -0.751, 0.857 Scale: 1.400 XY Proportion: 0.010 X Offset: 0.000 Y Offset: -0.055 Antialias: Checked I got the values by drawing a square Shape on a transparent higher layer. I then selected the the original image layer, and moved the Perspective Transformation nodes so that the corners of the record jacket were on the corners of the square. Then I adjusted the XY Proportion to make the record circular instead of elliptical. Another method that works okay is to make a duplicate of the image layer, and zoom in with Layers>Rotate/Zoom so that the record jacket is bigger than the original record. Run Quadrilateral Correction on the enlarged record jacket to make it square. Then switch to the original image and rerun Quadrilateral Correction, adjusting the Height and Width to produce a circular record. Enlarging the jacket in necessary because Quadrilateral Correction crops to the quadrilateral, so the quadrilateral must be large enough to contain to record. Quote Link to comment Share on other sites More sharing options...
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