Perspective and stitching

So I'm playing with stitching to allow images wider than my widest lens would take and to capture greater resolution for larger prints. I'm playing with stitchings for 8-20 images. I've been using File>Automate>Photomerge... I've played with the various options and have found that merging with the "Auto" option, though the effect I want is the "Perspective" optoin.
Since the images to each side are with the the sensor plane angled away from the subject there is noticable perspective to both sides of the merged image. What I'm wondering is what the best type of correction to make is. The standard perspective controls are like tilting the back of a large format camera and only correct in one direction. I'm looking for something that might be like folding the perspective in the middle of the image.

In some cases my angle of view does exceed 120. In the image above the filed of view of the original captures is right at 180 degrees. But wierd things are happening in this picture. Note the logs on the left side of the image and the trees on the right side. A straight road runs along the edge of this scene and passes within five feet of both the logs and the trees. Outlet of this spring is that trail of brown and it is parallel to the road. The line of trees looks fine, but that is because the clearing is a semicircle, so the line of trees is relatively parallel to the sensor plane in each capture.
If I had an extreme shift lens, that would make better captures too, as sensor plane would remain parallel to the subject. Large format photographers and those familiar with tilt/shift lenses will understand. For an explanation of what's happening see: http://en.wikipedia.org/wiki/Perspective_control_lens
The reason the normal perspective controls in PS don't work quite right is that they assume one capture. Thus the correction is basically applying a trapazoid to correct that fact that the one capture had the sensor (film) plane out of parallel with the subject. In the case of a stitched image, the sensor plane is at multiple angles to the subject, and also in opposite directions from each other.

Similar Messages

Descriptions are not showing on Perspectives and Objectives

I have provided descriptions for various Perspectives and Objectives in the Perspective and Objective Library and only some values are being displayed. What am I doing incorrectly?

Christopher,
What version are you working on? The only thing I can think of going back to version 7.5 is that, while there is a default description from the library, there is also the option via the Override descriptions link in the Conexts section of the Admin area, to override that description. It could be that this is what is causing the problem and that while you may be storing a description in the Library it is being overridden this way.
If you are on version 10.0 or 10.1 then I would suggest that you open a support ticket to look into this as this behaviour, particularly with it being inconsistent, suggests a problem. From your description I can't see what you are doing wrong.
Regards
Colin Cooper

ACR and Stitching From RAW Files

I see something peculiar happening on recent stitches.
I have say, three frames to stitch from RAW. One frames a little overexposed, so I open in ACR, drop the exposure to compensate and save. Then I open all three frames in Photoshop>Merge as RAW files. When the adjusted frame shows up, the adjustment is ignored.
I can fix this by opening the other two and do a very slight change to them, save, then all three show up as expected, the bright one matching the other two close enough to get a uniform stitch.
Now I am doing this as a quick test of the stitch, to see if I really am interested, and if so, I go back and open all three in ACR and make the corrections. After doing all three, I can uncouple the bright one and tweak its exposure, then save and stitch, no problem.
Is this normal?

I am selecting the images after making the raw adjustments in Bridge and selecting Photomerge under the Tools.
I haven't experienced this either until now. The difference is that Iwould always select the images and open in ACR first, and run the corrections synchronized. Occasionally, one would be off enough to require special tweaking so after the synch corrections, I would select it, correct it then click Done. Getting a bit lazy, especially with many panos waiting, I do a quick test and in this case, only one of the three needed tweaking. Running Merge as above ignored the tweak.
Try it yourself. Pick some images to merge that have not been through RAW, and tweak one only in ACR. Click Done then Photomerge from Bridge under Tools.
I've done this twice now, after exiting Bridge and Photoshop first.
Make that three times
Message was edited by: Hudechrome

I want to ask about changing perspective and perspective correction in photoshop. Obviously, we can tilt and straighten buildings and other monuments, which are leaning in any direction. Now, what I want to know is whether we can change perspective for hu

I want to ask about changing perspective and perspective correction in photoshop. Obviously, we can tilt and straighten buildings and other monuments, which are leaning in any direction. Now, what I want to know is whether we can change perspective for human faces. For example, if there is a human face, where one part of the face is facing the camera and the other part of the face is only partially facing the camera, can we make this face look totally at the camera? I mean, look straight in front, and I am talking about the whole face here. I am attaching an image as an example of what I am talking about. @

If you are wondering why you are not getting any responses, it is because you have vented a complaint without any details that make any sense or give anyone something to work on.
If you want help, I suggest actually detailing what has happened, with versions of software etc. Anything that would let us assist.
As a start I am guessing that you have not really got the hang of "How it all works". Firstly download the Pages09_UserGuide.pdf from under the Help menu. Read that and view the Video Tutorials in the same place. A good addition would be the iWork 09 Missing manual book and something to help you learn how to use your Mac.
If there are specific tasks you need help with:
http://www.freeforum101.com/iworktipsntrick/index.php?mforum=iworktipsntrick
Is a good resource.
Peter

Distort, Perspective and Warp missing from Edit/Transform dropdown

Hi,
Why is it when I want to transform a smart object sometimes it lets me use Distort, Perspective and Warp and other times it doesn't?
In a situation where it isn't letting me and I want to, what is the remedy?
Thanks very much!

Unfortunately, I don't remember when it does work. It's a PSD document RGB/8. Where do you find out the bit depth?
It's got a a high res stock photo of a polo shirt and I've created a logo for a company (the smart object) that I've placed on the shirt but because I can't distort, use perspective or warp it's not as accurate a look as possible because it's not curving at the angle of the shirt.
Please let me know if there is any other info you need. Thanks!

CS5 and stitching

Just out of curiosity, I'm wondering if the new Photoshop CS5 changes/improves anything in relation to its stitching capabilities...?
I'm a landscape photographer and I would like to more fully take advantage of the stitching opportunities and capabilities of Photoshop. Just wondering if anything new has been added to the latest version of Photoshop (as opposed to my CS3 version, which I've been using for quite a while now, of course).
Thanks in advance for any and all info!

Hi Hud,
      Hmm, sounds like the Paul Newman movie.
      My PTgui is very old now. Joost has a 64 bit version that looks pretty souped up and I would love to have it.
      Yeah, I have lost a few shots my not locking the camera settings but I learned a long time ago to do it, and
it will save your butt. Both of the camera bodies I have only shoot 6.3 mgp so it limits my printing size to about
11" tall and what ever length it goes to. Its fun when I can find something interesting to shoot. Lately is all just
school work and I am tired all the time from it.
     I just worked over a single IR shot I did with the Canon 10D. The big issue is the noise. I converted the image
to CMYK to look at the channels and found a way to balance the yellow and red so the noise is minimalized in the
sky. I could not do it well in RGB. It shows up in the sky more and I like smooth skies. Previously I had used the
blur tool to soften the noise in the background and then sharpen the forgrounds subjects.
     The new issue of Color is out and it has some nice images in it.
     BTW, there is a new hardcover edition of the color photography of Ansel Adams. Check it out. I love his hilltop
Colorama! I would love to shoot images like that but suspect it would take a Brightlite size sensor to achieve it.
CHEERS...Mathew
Date: Thu, 13 May 2010 15:37:02 -0600
From: [email protected]
To: [email protected]
Subject: Re: CS5 and stitching
Your PT is newer than mine. I would have had to pay for the upgrade, but even by the time CS3 arrived, I decided that most of my stitching does quite well between both tools.
On CS5 take a set of images previously stitched in PT, redo the stitch in CS5 using the Auto(Default) button and checking the Geometry check box at the bottom. So far as the vignette check box, I found no difference checked or unchecked.
I also use DXO for lens correction which includes vignetting correction based on camera and lens combo. Again, doing stitching with either an uncorrected set or one that is corrected, there is a difference but sometimes I prefer the corrected, sometimes the uncorrected. I'll be interested in what CS5 can do when that feature is unleashed. I hope I can turn it off before stitching, if I so desire! And I also hope that it isn't auto on everything, because it will likely double correct the dxo files!
Using pano to generate a grid and not just a panorama is a great way to up the quality from early digital sources. But I stand by my comments that, given optics capable of generating the same angle of view as a single shot, or through collected frames as a grid, the D80 showed improvement at the 16x20 print size, the D90, practically none.I believe it has to do as much with intrinsic noise as optical properties, and at 1600 ISO, D90, I would do a set to stitch as a backup on important shoots.
A caveat: I have lost a fine set of images to stitch because one frame lacked the sharpness of the others, even using VR lenses. So be careful. Nothing more ghastly than a great image with inexplicable lack of sharpness in a portion of the final!
>

Perspective and lens geometrical corrections

Ideally Lightroom would encompass all the basic functions needed by the photographer in order to avoid, as much as possible, the use of Photoshop as part of usual workflow.
Perspective and lens geometrical aberrations corrections are two important steps of a photographer's workflow.
It would be great to have them as part of Lightroom. Don't you think?

The biggest disadvantage to edit in PS is, that you multipy the needed disc-space by a factor of about 3-10 by converting DNG or NEF into TIF/PSD and double up your files in LR with each file you´re editing in PS. For me, that´s one of the main-reasons to say, put as much as possibe features into LR. I´m willing to pay more money if LR is a modular system,or if you can choose between a "light" and a "extended" version.
Maybe LR light, and LR extended can be the future, instead of having two different products, 10 times loose of disk space, double number of database-entires is LR and to have a smarter work-flow.
But at least main features like lens corrections and perspective corrections should be included into LR.
Many greetings
EMSI68219

Perspective and Warp AE CS4

In Photoshop there are functions called perspective and warp and it can be applied to each layer.
Are there similar positilities for each layer in AE CS4 where I can either change my perspective - or create a warp effectas in Photoshop
Would like to make it in 2D
Perspective is the most importen yet

Effects --> Distort --> Corner Pin
Effects --> Distort --> Mesh Warp
Effects --> Distort --> Bezier Warp
Mylenium

Publishing Perspectives and Categories as Portlets in 10g (9.0.4)

We have upgraded from Application Server R2 to 10g (904). Now trying to re-build the pages we had. However, I cannot see how to publish categories and perspectives as portlets - which was very easy in the previous version.
Am I missing something? Any help would be great.

You can publish your categories and perspectives as items:
Add item > Built-In Navigation Item Types > List of Objects [enable it if it's not in the list by clicking on the "configure the list of available item types" link] > Select objects to add to your list > Categories ...
Peter

Perspective and free transform

I'm a bit new to illustrator and derive most of my graphics experience from photoshop (which im not current with). Anyway, back in the day I remember a free transform option in photoshop that would allow you to individually grab corner or mid-section and move it around separately. This was great for adding perspective to your drawings since you could manually change rasters around from square to say trapezoid. anyway i was wondering if theres something similar in illustrator as i'm having difficult adding perspective to drawings that have a high number of anchors.
thanks in advance.

Adobe has a bunch of nice tutorials, check this one out.
http://tv.adobe.com/watch/learn-illustrator-cs5/drawing-artwork-in-perspective/

Extracting EXIF info from Jpeg + And Stitching Algorithm

I develop Stiching program for digital images in order to create Panoramas with Java. I need to extract EXIF meta data from Jpeg images : focus, focal lens, exposure, constrat, white balance, shutter speed et al.
I ve looked at several code in Java on google, i dont understand much, if anyone can explain it in a simple way for me plz, i will be very appreciate.
Also if anyone have any info on stitching algorithm using Java , it will be very helpful.
Thank you
Hoan

I examined your sample .jpg with Exiftool, the most authoritative metadata tool available, and I also used the following tools to examine the metadata:
OS X 10.9.5: Finder, Preview, Photoshop CC 2014, LR 5.6, exiv2
Windows 8.1: File Explorer, Irfanview 4.38
All of these were able to display the EXIF metadata, including exposure information, without problems, and Exiftool didn’t flag any nonconformities. So it seems that it’s the Android apps that aren’t conforming to the standards.
Looking at the internal structure of the LR-produced .jpg, I suspect that it is producing a layout of the IFD0, IFD1, and ExifIDF sections that the Android apps aren’t expecting (because the developers didn’t follow the standards). LR produces the following ordering: unused bytes, ExifIFD, IFD1, IFD0. A more typical ordering would be: (no unused bytes), IFD0, ExfIFD, IFD1. Both orderings conform with the standards.
You could test out this hypothesis by obtaining a copy of the free Exiftool and then in a Terminal window (Mac) or command prompt (Windows) do the following command:
exiftool –exif:usercomment=”Hello world!” sample.jpg
This will cause Exiftool to rewrite the Exif metadata in the more-common ordering. If the Android apps can now see the EXIF exposure metadata in the modified sample.jpg, then that confirms the apps are non-standards-conforming and should be fixed.

Portal, JAZN, Perspectives and Categories - oh my

Using only java, how do I connect to the OID server, and find out if a specific user is part of a particular perspecive or category defined in portal?
Simple example: I want to know if user named "bob" is a member of the "HR" perspective. Eventually, it would be great to have this as a taglib.
I want to create a web app (Running in a different OC4J than portal) using jDeveloper that authorizes pages based on the security a person has in portal. How can this be done.
Is there a documented relationship between OID data and Portal User data. Can the two be used together?
Can someone post example code, or post a link to documentation that describes this?

On the first question, users are not classified in to
perspectives or categories ... only the Portal
content is classified that way. So, unless I'm
misunderstanding your question, there's no way to
determine if Bib is a member of the HR Perspective,
because there's no way to associate him with that
perspective in the first place.
Just thinking out loud, but it doesn't make sense that a data driven ORACLE product wouldn't store this information in a relational structure that could be accessed. Just my .02 on that one. Thanks for the feedback!
On the second question, this one is fairly
straightforward. When building your web app, you
should define J2EE security-roles that you want to
map to the OID-based Portal groups.
Place J2EE security-constraints on the pages you want
to secure, referencing the security-roles you
defined.
Then, when deploying the app, map the J2EE security
roles to the OID-based groups. You can do this in
the deployment plan, and you should see the mapping
reflected in the orion-web.xml file. You should set
the security provider for your app to Oracle Identity
Management. See how to do this in the OC4J Security
Guide.Working on this now. Thank you for the guidance!

Error while trying to use Photomerge and stitch a few pictures with Photoshop CC 14 on Windows 8.1

I am getting an error while trying to merge some pictures together using photomerge in photoshop cc14, it says photoshop has encounter an error, and it closes photoshop after that, I cannot use photomerge at all, everything else works fine. Any help anyone???

BOILERPLATE TEXT:
If you give complete and detailed information about your setup and the issue at hand, such as your platform (Mac or Win), exact versions of your OS, of Photoshop and of Bridge, machine specs, such as total installed RAM, scratch file HDs, video card specs, what troubleshooting steps you have taken so far, what error message(s) you receive, if having issues opening raw files also the exact camera make and model that generated them, etc., someone may be able to help you.
A screen shot could be very helpful too.
Please read this FAQ for advice on how to ask your questions correctly for quicker and better answers:
http://forums.adobe.com/thread/419981?tstart=0
Thanks!

Pattern recognition and stitching images to reconstruct a panorama

H,
I am taking around two hundreds snapshots of an object of 1m long and I would like to recreate a full panoramic image.
I can basically do it manually (it works fine) by imposing a identical offset in between all pictures but sometimes a small delay in the image acquisition is perturbing the assembly.
Therefore, I would prefer to use an algorithm to do it automatically and find the best offset for each snapshot.
I have seen that a development already exists although this is far to powerfull for my application (http://zone.ni.com/devzone/cda/epd/p/id/6497). However, it is developped for Labview 2010 and I have only LV2009. I do have Vision 2010.
Could anyone comment on this and let me know if it would be adapted to my needs?
If so, could anyone convert that vi's in 2009 format or provide something equivalent?
Thanking you in advance.
Cris.

I don't have LV 2009, but I've saved it back so hopefully it works for you. Looks like a nice solution - whether it will work will probably depend on the content of your images, and whether there are distinct objects to match up. I've had a similar problem in the past, but rather than finding particles, I've computed a cross-correlation as the measure of where to overlap images. You could probably adapt this code to use a different alignment technique.
Attachments:
Stitcher_v1_1_2009.zip ‏231 KB

IPhone OpenGL Application Template - Perspective and Depth?

Has anyone been able to get a perspective scene with depth to render using the new OpenGL Application template in XCode? I can't get anything to work other than Ortho.
Thanks!
Message was edited by: rmberg

did you solve this? I am having the same issue.

Perspective and stitching

Similar Messages

Maybe you are looking for