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Perspective transform revisited
#13
(11-05-2020, 04:40 PM)denzjos Wrote: Sorry, but I can't let the plugin version 2 work to correct round objects. I've tried on several things like stained windows, technical drawings, round box,... and the result is not correct.
(Windows10, gimp 2.10.22).  

I notice that you have the setting for "Operation backwards?" as "Yes". Why so? Try with "No". I put that option there only since some Gimp's tool has some similar mode to do operation backwards (inverse operation).

The normal way to use the plugin is when you are trying to make a correction to a distorted figure (a distorted rectangle or circle perhaps). Then the option should be "No".

But if you do the operation backwards (the option is "Yes") then the plugin makes the inverse transformation (goes backwards), and a true rectangle or circle becomes distorted as defined by the path. I guess that if you have a distorted circle to begin with, and you make the path as for correcting the figure, but you do the operation backwards, you get the circle doubly distorted.

So please try with "No" and report back.

The wordings in the plugin could be clearer. Suggestions are welcome.

By the way, the newer plugin is meant to correct distorted rectangles  (but can be used for circles too though clumsily). I am now writing another plugin that is dedicated to correcting distorted circles. Perhaps it will be easier to use for such pictures. I hope to publish it in a couple of days.
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Messages In This Thread
Perspective transform revisited - by Ottia Tuota - 10-28-2020, 05:11 PM
RE: Perspective transform revisited - by Krikor - 10-28-2020, 07:04 PM
RE: Perspective transform revisited - by denzjos - 10-29-2020, 05:15 PM
RE: Perspective transform revisited - by Blighty - 11-03-2020, 11:16 AM
RE: Perspective transform revisited - by Krikor - 11-03-2020, 02:12 PM
RE: Perspective transform revisited - by denzjos - 11-05-2020, 04:40 PM
RE: Perspective transform revisited - by Ottia Tuota - 11-05-2020, 07:14 PM
RE: Perspective transform revisited - by Krikor - 11-05-2020, 06:04 PM
RE: Perspective transform revisited - by denzjos - 11-06-2020, 09:10 AM
RE: Perspective transform revisited - by Krikor - 11-10-2020, 09:04 PM
RE: Perspective transform revisited - by Krikor - 11-11-2020, 12:50 PM
RE: Perspective transform revisited - by akovia - 11-16-2020, 06:11 PM
RE: Perspective transform revisited - by Krikor - 12-01-2020, 12:45 PM
RE: Perspective transform revisited - by denzjos - 12-03-2020, 02:17 PM
RE: Perspective transform revisited - by denzjos - 12-03-2020, 05:42 PM
RE: Perspective transform revisited - by denzjos - 12-04-2020, 08:58 AM
RE: Perspective transform revisited - by Krikor - 12-05-2020, 07:06 PM
RE: Perspective transform revisited - by denzjos - 12-06-2020, 12:02 PM

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