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1. PTLENS & TOUR VIEWER SERIAL
2. PTLENS & TOUR VIEWER PORTABLE
3. PTLENS & TOUR VIEWER SOFTWARE
4. PTLENS & TOUR VIEWER FREE

I will not discuss in depth any technique, because you have already some good answers.

PTLENS & TOUR VIEWER PORTABLE

The program runs in Windows and it's portable (=no installation needed) It has more controls than the previous shown in my answer. G'MIC is freeware and it's also available for GIMP.ĪDD2 Freeware image editor PhotoDemon seems to have very good generic lens distortion corrector. There it was G'MIC filter pack's filter Distort Lens with negative distortion. Its generic (=none special type specific) Lens Distortion filter made this:Īgain: Not exact, but maybe even a little better than PTLens's.ĪDD: Quite the same result as in Affinity Photo was available in Krita.

PTLENS & TOUR VIEWER FREE

PTLens has a free 10 photo trial.Īnother attempt was made in Affinity Photo. I guess it stretches the image horizontally. It's generic fisheye distortion corrector made this: It knows many popular lenses, but it also has some generic filters with wide adjustment ranges. I tried PTLens correction filtering program. I guess you have already thoroughly tested and seen that GIMP's generic lens distortion compensating filter doesn't the job. I guess you haven't the needed lens distortion data nor Photoshop. If you use generic distortion correcting filters you of course do the same - you try to get some straight lines back.

PTLENS & TOUR VIEWER SOFTWARE

Theoretically known straight lines around the image could help clever software to find a good guess of the needed correction, but that's a math problem and I must skip that theory. Photoshop's CameraRaw knows hundreds of cameras and lenses. Then you should have also the lens profile and the aperture and focus settings used in this photo. To correct the lens distortion you should have a program which can do lens distortion profile based corrections. The ancient lensless camera obscura worked and still works that way when the imaging surface is a plane. I see you want to map straight lines to straight lines.

To be exact one must also tell what kind of imaging is considered to be right. Somewhere new pixels are interpolated to stretch an area and elsewhere an area can be squeezed to smaller number of pixels. Of course some resolution loss can occur when the image is resampled. it doesn't mix to any point light from several points of undistorted image. But since the Help search took me straight to the item I didn't know immediately what section I should look in.Theoretically lens distortion can be reversed if the distortion is one to one i.e.

PTLENS & TOUR VIEWER SERIAL

If I was reading through the Help in a serial manner, I would not need the full path because I would know that I was in the preferences section. It would be good if items in the Help included the full path to reach them starting at the menu bar - in this case, PhotoLine/Preferences/Display/Grid. There is a menu item "Layer/Display" which does not refer to this. it told me I could go this in "Display/Grid". Wishing to set the grid to my liking (I don't normally use Grids), I went to Help. I guess I would prefer the standard shift key restraint. If you don’t get your crop tool point right on the automatic guide, it will slide over to the automatic guide before moving in the desired direction, adding a new distortion. Do your distortions (corrections) then crop your image BEFORE you do your aspect correction. It is all too easy to slide off to the side - adding a distortion to the picture just corrected.Īh, good one, Burkhard, regarding the automatic grid! (And even more, Huber Bros, of course!) I tried the usual constraining key, shift, but it did not effect the movement. Grabbing the middle green square and moving that while holding down the command key works fine except we need to be able to constrain movement to the vertical or horizontal. You have to move one corner at a time, you have to guess horizontal, and while you are thinking about that, you have to maintain the position of the upright lines. I had actually tried to do this with the Rectify tool a number of times and found it not handy. In PL, you can adjust the height of the image with either the Rectify tool or by grabbing one of the Crop tool handles while holding down the control or command key. PTLens does not have this tool and Tom says the program as such is in maintenance mode now so he is not planning to add such a tool, although he is constantly adding new lens information to the database, of course. Likewise with fixing horizontal perspective. With the aspect tool you can reduce the height of the image to get the height and width of the subject back into proportion. Just fixing the perspective tends to leave the building tall and thin.

the height of a building back to normal after you have fixed vertical perspective. LensFixCI - which does not work with 64 bit, sadly - has an "Aspect" tool so you can bring e.g. I've just noticed an interesting thing with PTLens vis-à-vis its (Mac-only) sister program, LensFixCI (they use the same database).