photography

How to get the EXIF data from a file using C#

Hi, I would like to write a small program in C# which goes through my jpeg photos and, for example, sorts them into dated folders (using MY dating conventions, dammit...). Does anyone know a relatively easy way to get at the EXIF data such as Date And Time or Exposure programatically? Thanks! ...

Obtaining iPhone Photo Exposure Information

Is there any way to get the exposure settings (aperture, shutter speed, ISO) for a photo taken on an iPhone? An app running on the iPhone can use the UIImagePickerController interface for taking pictures, but that doesn't provide much info about the picture. The EXIF data for a photo taken on the iPhone contains aperture info, but not ...

Lens correction projection

What is the simplest way to un-warp a photo made using fisheye or wide-angle lens? I'm looking a pixel projection formula that has few parameters. Camera and lens parameters will not be known, so user has to change the parameters visually. Thanks ...

How to flatten a fish eye picture (with python)?

I've found programs to turn fish eye pictures into flat ones. I'd like to learn the process behind the scenes. Can someone share their knowledge about the technique? ...

Determining camera parameters

Given a picture taken by a simple digital that contains an image of a rectangle of known dimensions. How can I - to some degree of accuracy - determine the parameters of this camera? I am mostly interested in Pan-, Tilt- and Swing angles. Optionally distance to the rectangle would be nice. I acknowledge the fact that the focal length ...

How to take screenshot of whole web page, rather than what shows on the screen

I have a web page that doesnt fit screen in normal resolution, so I have to scroll to view it all. I want to take a screenshot that captures the whole page, and not just what shows on the screen. How can I do that. Currently, I press F11, then zoom out till the whole page fits one screen (and consequently no scrollbar shows), then I pr...

Determine transformation matrix

As a followup to my previous question about determining camera parameters I have formulated a new problem. I have two pictures of the same rectangle: The first is an image without any transformations and shows the rectangle as it is. The second image shows the rectangle after some 3d transformation (XYZ-rotation, scaling, XY-translati...

CMS for Professional Photographer with Pretty Admin Back End

I'm working on a few sites for professional photographers who want to be able to update on their own. I'm looking for a simple CMS solution that has very basic functionality as a gallery and is easy for them to work with. My main concern is with ordering images--I'd like for them to be able to drag their thumbnails around and lock the or...

How to know or calculate depth of field of a photo from EXIF tags?

I want to know the depth of field of a photo, preferably in cm or m. I know that we can know the camera setting by reading the EXIF tags, but is there a tag directly telling us the depth of field? Or how can we calculate it from some EXIF tags? Examples would be appreciated. Thanks! ...

Building a community photography site, where can I store my photos online?

I am in the process of laying down the requirements for a photography community site. An important feature to investigate would be allowing more fotos/account than rival sites around my country's internet. What are the possibilities out there? Should I go for something like amazon S3, or is there anything that offers more image-related ...

Give me some idea : How do I match photographer?

I have photographer in my database such as PhotographerID, PhotographerName, JobArea, BestPhotography, FavoritePhotography. And I want to match some photographer from my database. The question that I will ask the user before matching photographer is.. Area or province that you want to hire a photographer? Type of photography? How do...

Sell digital goods online

What's the best solution for a photographer wanting to sell image files online? I tried zencart, but it's way over the top and their backend looks like a 3 year old designed it. Is there a free solution out there? One that has easily modifiable templates and isn't too tedious to add hundreds of pictures for sale? I'm seriously thinkin...

How can I check out the picture quality in program using c#?

I want to check out whether the photograph is suitable for print or not using my application.How can I do that?I don't know much about photo quality?Is the resolution of every photograph is same or not? ...

How can I check photograph quality?

Possible Duplicate: How can I check out the picture quality in program using c#? Can I check whether noise is added to a photograph using c#? ...

How to calculate the Horizontal FOV of the image?

Hi, I want to calculate the Horizontal FOV (HFOV) of the image using the EXIF information of the image. (Images are taken from different cameras.) http://www.worldserver.com/turk/quicktimevr/calculators.html#EXIF http://www.ehow.com/how_6640554_calculate-field-camera-lens.html http://en.wikipedia.org/wiki/Angle_of_view All these are...

Creating a usb time lapse for Cannon EOS Rebel XS using a c# program

I am wondering if this is even possible. I want to make my own software to control the release of the shutter via the remote shutter release. From the diagrams I have seen it has a 3.3 v (no load) and a threshold voltage of 1.8v. I am wondering if I can use limit a usb cables voltage which is around 5.25v, if I am understanding corre...

Algorithm for measuring the Euclidean distance between pixels in an image

I have a number of images where I know the focal length, pixel count, dimensions and position (from GPS). They are all in a high oblique manner, taken on the ground with commercially available cameras. What would be the best method for calculating the euclidean distances between certain pixels within an image? If it is indeed possible...

How to replicate iPhoto's "Enhance" action with ImageMagick tools?

I don't really know what iPhoto's Enhance actually do, so, I guess we could start by finding out exactly what it's doing. I'd wager some mix of auto-levels, sharpen, and color adjustment. I'd like to, then, do something as similar as possible with the ImageMagick shell tools, or, if need be, with some programming thrown in through a lib...