Barrel distortion correction

Another missing feature is the Barrel Distorsion within the Lens Correction. This is great for creating both effects and repair.

Also here: http://forum.java.sun.com/thread.jspa?threadID=707924

Similar Messages

How do I apply timestamp and barrel distortion correction together?

Hi guys! My first time posting a question here and I hope to get your sound advice on this editing challenge. At the moment I am using Adobe Premiere Pro CS6 and FastStone Image viewer to do some image and video editing. I am using GoPro Hero 3 HD cam to take photos at certain time interval and then combine then it into a timelapse video. The capture settings are 7mp at medium angle. I know the GoPro take pictures at 12 mp W, but as you know the GoPro is notorious for barrel distortion, so at higher settings, it's even worse.
I am tasked with both correcting barrel distortion and adding timestamp feature on my timelapse videos. I've used the FastStone Image viewer to add time stamp or Premiere CS6 to correction distortion. However, I've been unable to do both at the same time. Now I know that the CS6 has some sort of timecode feature that allows time stamp to be shown, however my time timestamp data needs to be extracted from the original meta data, whereas the timecode feature in CS6 only shows just the total length of the video, not the original date and time when data was captured. Using the FastStone allows me to show a real progression of time on data capture from beginning to end (I am working JPEG images in this case).
Now because FastStone extract the timestamp data from original images and shows them in text label format, when I tried to apply the lens correction on CS6, it would also cause distortion in the text label itself. I've tried the other way too, where I've corrected the barrel distortion in CS6 then imported the images to FastStone, but then I would lose the original metadata (the date and time of capture), FastStone is then forced to work with the modified date and time. Now usually I am working with anywhere from 1000 to 3000 images, and FastStone allows the timestamp to be added in batch conversion. It also has this feature to change time stamp to a desired or specific date and time, however, this cannot be done in a batch, but rather on individual frame or image, and thus isn't very practical when I am working with thousands of images.
So my question is if there's any way I can combine both barrel distortion and timestamp (which is using the capture data)? Thanks guys.

Thanks guys! Turns out it's CS6 is intuitive, I can just combine the two sequences into a single sequence with two different tracks with crop effect superimposed. However, it seems with the distortion correction and crop effect added, I am losing some of the details of original sequence without the distortion correction applied. What tools in CS6 can I use to get some of the clarity and vibrant colors back?

Adobe Premiere Elements plugin for fisheye/barrel distortion correction

I want to correct the fisheye/barrel lens distortion in a GoPro MP4 video recording. Can Adobe Premiere Elements do this (I've searched for such a function in my APE 11 without success) or is there a plugin which will do this and which is compatible with APE 11 ?

That is good news, and for $49, sounds like a deal. ProDAD does some nice applications and plug-ins, but I had not heard of that one - learned something new.
I was going to mention Alien Skin (also do some neat plug-ins), as they have/had a similar "lens distortion" module in their lineup. However, I did not see PrE listed as a host application, so held off. Most of their plug-ins work in Photoshop, Premiere Pro and After Effects. We see similar with plug-ins from Red Giant and Boris, where PrE is not a viable host app. Not sure why not, but it must be in the numbers - both user-bases and $, as Boris & RG plug-ins often cost 3x what PrE does.
It's also great that the ProDAD plug-in offers some stabilization - probably a bit of their Mecalli stabilizer is built-in - you get a "twofer!"
Thanks for that info, and happy editing,
Hunt

Opinion poll:Easiest tool or app for eliminating barrel distortion

I have 7 RAW images of paintings on walls that show some barrel distortion. I'll probably reshoot them, but in the meantime, what is your expert opinion on the easiest method to eliminate it. I have Photoshop CS 5.1, Aperture 3.x, Capture One Express Pro 7, Topaz, Elements 11, PhotoLine, and a couple others. I've never had to do this before even in my vast and eclectic experience as one of the world's premier fotogs( why am I not featured for six months in the forum sidebar?). Gotta start somewhere.

Camera Raw, set to use lens profile corrections.
One can also undistort the angles (i.e., make the paintings rectangular) pretty easily with some of the tools in the Manual section.
What I don't recall without firing up an old version of Photoshop is how much of this ability you have in your copy of Photoshop. I know you don't have the "Upright" straightening control shown in the second image above. If you can't get a barrel distortion correction, and you'd like to send me the photos, I'll be happy to run them through the modern converter for you.
Don't forget to look into the $9.99/month Photographer's bundle. Adobe actually IS doing good things to their software, making it worthwhile...
-Noel

Olympus E-P1, RAW files, barrel distortion and Snow Leopard

I currently use Aperture 2.0, a MacbookPro, and a new Oly E-P1. I have just returned from a trip to Spain with over 1000 RAW files. Aperture won't recognize them. Tricking Aperture into accepting them as E-30 RAWs leaves in huge barrel distortion issues. Always silent Apple won't even say if they're working on recognizing them in an upcoming release. The native OLY RAW converters mostly correct the barrel distortion with funny math in their extremely lame Olympus Master 2 that came with the camera. Raw Photo Processor (which I was counting on to save me) which will recognize the files, also leaves in barrel distortion.
I understand that the latest Adobe Camera Raw 5.5 will read Oly E-P1 RAW files. I see no way to use Adobe Camera Raw 5.5 without upgrading my current Photoshop from CS to CS4 and purchasing Lightroom. Total cost, about $400. I might be willing (as an amateur) to do this, as I probably need to upgrade to CS4 anyway, BUT, I understand through a little digging on the web, that I will probably have to downgrade my OS from OS X v. 10.6 (Snow Leopard) apprently not supported by Adobe yet. Both of these will be a major commitment of time and money.
I would like to make sure that the Adobe Camera Raw 5.5 does indeed correct the barrel distortion first. Anybody out there using it? Also, if anyone has any other suggestions, I'd appreciate it.
Thanks.

If you want to try, just download the LR 2.5 demo version from the Adobe Website. You don't need to upgrade Photoshop. Lightroom will work just fine by itself, even when using CS as the external editor as it contains the full ACR raw rendering kernel and you can just have Lightroom render tifs to be sent to PS. Also, Lightroom and CS4 work perfectly fine on 10.6. Lightroom should be run in 32-bit mode for the time being if you need the tight Photoshop integration, but that is about it. I don't know where you got the info that you would need to downgrade. That is simply false.

Barrel distortion after import (Aperture 3.5.1)

I've noticed before now that when I import any photos to Aperture, it applies some sort of automatic adjustment the first time the photo is viewed. It's usually just a slight thing, almost as though the contrast has been put up a little bit. It's something like a 'deepening' effect on the images. It isn't anything I've set (no preset or adjustments have been applied at this point), but it nevertheless affects every photo that I import.
I just got a 35mm f/1.8 lens for my Nikon, and started testing it out by shooting in raw (.NEF), just for the fun of it. When I imported the shots to Aperture, the same effect happened as before, only much more exaggerated; higher contrast, more saturation, and a certain amount of barrel distortion seems to have been applied. I don't know if this is Aperture attempting to reduce distortion that it detects, or what it might be doing, but it definitely is doing something to alter the photo. This lens has much less distortion than I was expecting, and in-camera it performs beautifully -- but after importing to Aperture the photos take on a weird look. This is particularly a problem when shooting in raw, while JPEG shots don't seem to be effected by distortion.
Any help with this issue?
Thanks!

What you are seeing is the difference between the in-camera raw processing and lens distortion correction, that is applied to the camera generated jpeg previews, and the naked raw files, that is Aperture presenting you.
When you first import a raw image, you will see the preview generated by the camera. This preview will show all incamera processing, including Nikon's lens correction. After loading the image, Aperture will replace the camera preview by a preview rendered from the raw.
Aperture does not do lens correction to correct any barrel distortion. If you are shooting raw, you will see the naked raw without any in-camera processing applied in Aperture.
If you want to profit from Nikon's in-camera processing, import the jpegs with the highest quality setting and not thr raw files. Or use lens-correction software like the Aperture plug-in PTLens.

Can photoshop cc stack and align photos produced from lenses with barrel distortion

I have a series of astrophotos that include terrestrial foreground and the milky way in the background. The images were taken with a wide angle lens at f/2.8. To increase the signal to noise ratio I would like to stack the images; however, due to the rotation of the earth the position of ht milky way relative to the foreground changes in each shot. To correct for this I have imported the raw images as layers from lightroom and made a copy of all the images and transformed one copy of all the images into a smart object for stacking the foreground. On the background (sky) copy, I made a layer mask that masked out the foreground for each photo. Next I used the edit > auto-align-auto feature to align the images. Next I deleted the layer masks and stacked the images using layers > smart-object > stack mode > median and photoshop did stack the images. While the center and center top of the images did stack with a good image and an increase in the SNR, the rest of the photo came out blurred/smeared. I have tried this many times and I keep getting the same thing. Is barrel distortion causing this and if so is there anything I can do to correct for it? I am attaching a before and after photo here, so hopefully you can see what I am talking about. It is only aligning part of the sky and is just smearing the rest.

That would be my guess - that the movement of the stars between shots was enough to bring lens distortion into the equation. Which lens are you using? If it's just a simple barrel/pincushion distortion then you might be able to fix it before stacking. But anything more complicated like mustache (in case you're using the Samyang/Rokinon 14 mm) would probably lead to issues.
Even with simple barrel distortion you might run into problems. The fixes are only approximate, intended to remove visible distortion in an image when viewed as a whole. But this use is a particularly extreme test of how perfect the correction can be, I wouldn't be fully surprised if there are still sections that are out of alignment. It's an interesting problem, I'm curious to hear how it plays out. That said, I'm sure you're far from the first to do this, so perhaps visiting an astro-photographer forum would be helpful.
Personally, I'd have Lightroom apply the lens profile correction, then export all the images to Photoshop, using the same post processing. If you're using the Samyang there's a profile you can download, but it only gets it close. You may have to do a bit of manual masking on specific areas to make sure everything is as sharp as you want it.
Edit: I could see it just being a PS alignment issue. There's a lot of stars there. I'm not sure how the algorithm works, but I'd assume it just lines up a few points. If it messed up one of the points by just a tiny bit it'd probably throw off the entire image. I haven't used that function in a long time, but I remember trying to use the stacking feature back with CS5 and it did an absolutely terrible job. I've heard it has gotten better, but everyone I talked to that did focus stacking all used third party software for that stuff. Maybe there's a better program that people are using for this kind of work.

Distortion correction?

Hi folks
I am a new lightroom user, and I have been reading tutorials and guides for the last couple of days. As far as I can tell, Lightroom does not have the ability to correct barrel distortions (I have version 2.6). I have read about PTLens, but I dont fancy the idea of working with an additional program. I have an olympus ep-1 and my 'olympus master' software would perform distortion corrections on RAW files, but again, this requires the use of an additional program. It also didnt seem to work perfectly - ie the horizontal lines are still distorted.
I apologise for asking this question which I see has been asked before in this forum, but the older posts were from 2007 and I was wondering if anything has changed.
So, I guess my question is What is the best way to correct for barrel distortion in conjunction with lightroom 2.6 as my processing software.
Thanks in anticipation
Dale

Dale,
LR does not provide for distortion correction, even not in LR 3 Beta (a often requested feature, who knows what's coming with LR 3 GA ...).
I use PTLens as an external editor in LR to perform distortion correction. This workflow produces a TIFF image in LR upon launching the external editor, which is processed by PTLens, written back and stacked with the original RAW in LR upon return.
Even if you use Olympus Master to correct the distortion, you still would have to export the image as TIFF after the correction and reimport this TIFF into LR, as LR won't be able to interpret the RAW adjustments made by Olympus Master (this is a guess, as I don't know Olympus Master, but I assume it will not write an XMP file interpretable by LR).
So, right now, you cannot do the correction without any external edits.
Beat Gossweiler
Switzerland

Lens distortion correction

I would like to know if there is way to correct a lens distortion (Barrel Distortion) inside Lightroom. If not, how can I do it.
ex. Nikon D70 lens 18-70mm

And this is really a thread for the main forum. This is Feature Requests, and this one is already in.
Don

Is there a 100% free barrel distortion out there?

I use a Canon 5d mk11 and 17-40 lens and would like a free barrel distortion software programme,only need basic and no trial versions.Even better why don't Apperture add it to their App 4 next upgrade ,cheers.

If you need free lens distortion correction, GIMP is probably your best bet right now. It has a pretty wide variety of filters included, including a lens distortion plug-in. If you regularly work with RAW images, I'd suggest performing the distortion correction as a final step since GIMP will discard much of the more subtle image data that gets written to a RAW file.
You'll likely need to download XQuartz as well to use GIMP, since GIMP was originally a UNIX/Linux program. You can get that here.
Message was edited by: Aye Es Oh

How to disable distortion correction for micro 4/3 lens

Hello,
I have an Olympus E-P2 and Panasonic 14-45mm lens. Adobe Lightroom 3 and Photoshop CS5 appear to be performing some very heavy-handed distortion correction at the wide-end of the zoom (running the file through a different raw converter yields dramatically different results at the edges). This is without selecting any lens profile or enabling manual correction. How can I disable this?
Thanks,
Dara
P.S. Strangely, ACR 6 is not doing any correction of chromatic aberration. Given that the system is set up to try and fix distortion and vignetting automatically, it would make a lot of sense to fix CA too.

That's a solution. It doesn't however answer my question. Clearly there is some metadata tag that tells ACR what corrections to apply. Using EXIFTool, I can replace all the metadata with that from a shot with a non-correctable lens. Unfortunately, this screws up my cataloguing by replacing other things like focal length, aperture and so on. It would be nice to know the exact tag. Thanks.

Digital Camera RAW Update 5.02 breaks Sony RX100 lens distortion correction (AGAIN!)

Just like with the Digital Camera RAW Update 4.08, the latest 5.02 update breaks the Sony RX100 lens distortion correction again. I'm reverted back to 5.01 until this is fixed.
From your Time Machine backup, restore the previous versions of
/System/Library/CoreServices/RawCamera.bundle
/System/Library/CoreServices/RawCameraSupport.bundle

Yes, I noticed it too, but I wasn't certain it was 5.02 that did it as I sold my RX100 and haven't processes any files for a while. Then as part of the NR discussion here I looked at some old RX100 files, and the distortion correction now disappears. Unfortunately I can't really revert to 5.01 because I was waiting on the A7 support 5.02 brought.
Apple are aware of it, so hopefully the fix will be quick to arrive.
Andy

Perspective/lens distortion correction

About the only thing I ever have to go out of LR2 to do is correct for perspective or for lens distortions (esp. on wide angle lenses). I know this might not be an easy thing to fit in the interface, but it'd be very useful. Especially if you can set it up to do a stored lens distortion correction for a given lens at a given focal lens (+ maybe focus distance).
-Lars

I hope y'all don't mind if I think aloud a little more here.
We've been talking about perspective correction and lens distortion correction as if they were just about the same. They aren't.
Lens distortion correction is a fairly complex warp, but one that is completely determined by the lens and focal length (please corect me if I'm wrong). The main use of it would be to correct for the lens defects, not to create an artistic effect (like CA repair). It could therefore very reasonably be done as a preparation step, as with the Olympus cameras that actually store some correction information. It would be of relatively low user value to be able to change it later, and it would be much harder to implement.
Perspective correction is most definitely a user-driven correction. Not only does LR not stand a chance of figuring out what to do automatically, there would also be many cases where you'd want to correct in one dimension but not another, correct somewhat less that 100%, or in other ways fiddle with the amount of correction. Fortunately, it is a much simpler correction, merely the application of a small transformative matrix. Unlike lens distortion correction, it doesn't turn circles into strange wobbly shapes, but merely into ovals.
Let's take a look at the local adjustments: Crop, rotate, red-eye, spot removal, graduated filter and adjustment brush.
Crop would be well-nigh impossible to mix in with lens distortion correction, another reason to have the correction applied first. With regards to perspective, it should behave more or less like it does towards rotation.
Rotation can actually be done internally using the same operations that perspective correction would, but should probably still be separate in the interface.
Red-eye and spot removal both operate on horizontal-vertical ovals (restricted ovals for spot removal). These would be awful with user-adjusted lens distortion correction, even more reason to have that be an initial step. Perspective correction would stretch them somewhat. What happens when the user makes a dust spot fix, then fixes the perspective, then attempts to adjust the dust spot fix? We end up with the same situation as with vignetting: That there are pre- and post-crop versions. This distinction would now have to extend to pre- and post- crop+rotate+perspective adjustments. Obviously, you'd also want to be able to spot remove based on the corrected image, and it'd be strange to have a tool that's bent. It may be necessary to separate out dust spot removal from "subject matter removal" (including red-eye), as dust spotting should always be before perspective correction.
Graduated filter was really the thing that convinced me that the two corrections need to be split. Applying lens distortion correction after graduated filter would lead to a bent 'horizon line', a very bad thing indeed. Fortunately, it would be fairly resistant to perspective correction, though not entirely: If the horizon does not follow the perspective correction axis, the outer lines ought to tilt together. Probably overkill, though.
We already have an example of a similar situation: Red-eye removal and rotating. Try making a red-eye correction, then rotating the picture sharply. The red-eye oval will stay in the same position, even though that moves it from where it was supposed to be. I guess graduated filters could behave similarly.
The adjustment brushes are probably the simplest: Since they're already amorphous shapes, they can "simply" be bent and distorted along with the corrections and still make as much sense afterwards. Except if you want to use them to correct lens errors, but I don't know how often you'd want to do that.
Perhaps distortion correction and pre-crop vignetting should belong together. They would certainly interact.
That's my $0.02 plus inflation.
-Lars

Lens Distortion Correction Documentation?

I have seen in some discussions that LR corrects lens distortion for some lenses and some cameras. I have not been able to find documentation that indicates what cameras and lenses are supported for this - either for LR2.3 or 3.0beta. Is that documentation available somewhere?
Thanks!
David

Well, I guess that would be why I couldn't find it. ;-)
I'll try a more specific question. Are any DSLRs supported by the distortion correction? Specifically, I'm interested in a Canon EOS 5D, and what lenses (if any) Adobe has profiled for distortion with this camera.
I am hopeful that when LR3 comes out of beta, it will have distortion correction for most or all supported cameras and lenses, and that at least some of the specifics will be documented.
Thanks!
dbr

Lens Distortion correction not working on tonemapped jpg files

I have a series of photos exported from Lightroom 2 that I HDR tonemapped in Photomatix. Unfortunately after a disk failure I do not have the original RAW files and only have the 100% jpg saved tonemapped files from photomatix.
Now that Lightroom 3 is out I wanted to try some lens distortion correction on them. I imported them and immediately noticed after enabling the lens profile corrections and choosing my lens that although chromatic arberration and vignetting works there is no effect at all with the distortion correction! Even when I slide the slider from one side to the other absolutely nothing changes.
I tried it on other raw files and it works fines. I tried it on jpgs that I have that have not been combined and tonemapped in photomatix and they work fine. It is only the jpgs created from photomatix.
Is there something about the exif data that I am not considering or any other explanation as to why the photomatix jpgs won't take any distortion correction? thanks

If it's working for other jpg's, (and I though it didn't work on jpgs, so who knows?) then it does sound like the photomatrix program is wiping out the exif information that is needed.
Did you try using a viewer to look at the exif info, both before and after, to compare? Maybe there is a setting (in photomatrix) that you are missing when you save data?
Sorry, don't know photomatrix, so just offering generic ideas in the hopes it sheds light..
Cheers!

Barrel distortion correction

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