image-recognition

What algorithm to compare two images

Hello! My task is pretty simply (well, it SOUNDS simple): given two different image file (in whatever format I choose), I need to write a program to predict the chance if one is the illegal copy of another. The author of the copy may do stuffs like rotating, make negative, or adding trivial details (as well as changing the dimension of ...

Are there any 'ok' Image Recognition libraries for .NET?

I want to be able to compare an image taken from a webcam to an image stored on my computer. The library doesn't need to be one hundred percent accurate as it won't be used in anything mission critical (e.g. Police investigation), I just want something 'ok' I can work with. I have tried a demonstration project for Image Recognition fr...

Image recognition and 3d rendering

How hard would it be to take an image of an object (in this case of a predefined object), and develop an algorithm to cut just that object out of a photo with a background of varying complexity. Further to this, a photo's object (say a house, car, dog - but always of one type) would need to be transformed into a 3d render. I know there ...

C++ Library for image recognition: images containing words to string

Does anyone know of a c++ library for taking an image and performing image recognition on it such that it can find letters based on a given font and/or font height? Even one that doesn't let you select a font would be nice (eg: readLetters(Image image). ...

How to find blank field on scanned document image

I want my application to fill in a single field in a form that exists as an black-and-white image file. The form always starts as the same paper version, but by the time my application gets it from my users, it may have been scanned or faxed more than once. Because of that, the field I need is not in the same place in every file. My u...

Fast Java library for circle recognition

Hi! I'm looking for a Java library for circle recognition in a supplied bitmap. My Java knowledge is too basic to implement eg. Hough transform efficiently (Java newbie). Thanks! ...

Detect line segments in an image

I'm trying to detect line segments in an image. From what I gather, the Hough algorithm detects lines but not segments. Does anyone know of how I would go about this, or any libraries suitable for this? Im my case, I'm trying to detect star trails (which for these purposes are all straight) from a photograph so I can reduce them back ...

Image Recognition Library

I wonder whether there is any competent image recognition library ( preferably open source) in .Net? I have an application that scans pages and documents in batches. In order to separate one document from another ( for these documents could have multiple pages), I plan to ask users to put a page, with a say, polar bear image on it to sep...

Where can I find code for comparing two images and determining how similar they are?

I want to compare two (same-sized) images and determine how similar they are. I can't just compare the images pixel by pixel. Is there a good (preferably free) library for doing this? ...

Extracting surveillance camera positions from streetview images

Related to my previous question, is there some realistic chance to extract surveillance camera positions out of google streetview pictures by means of computer vision algorithms? I'm no expert in that area. But it should be easier than face detection and the like. ...

Library for Image Recognition in Obj-C?

Hi there, I'm looking for some library that will allow me to identify black dots on a white background. Preferably in C or objective-c. Also, what keywords can I use in my search for such algorithms? I've found a lot of stuff about image recognition but nothing that ressembles what I'm looking for. thanks! ...

Face detection + Image morphing

Hello, I am looking to create a site like photofunia.com where basically you can apply a large number of effects to an image. I am wondering if someone can guide me in the right direction as to the technology which must be used to achieve the same? Also, are there any open-source commandline utilities available to create such images? I...

Starting semantic image recognition

How to recognize (in)appropriate images? To facilitate, enable and easify photo and image moderation and administration targeting gae, I try get started with basic python image recognition ie basic semantic information what the image looks like to hold back doubtful material until human can judge it, and to approve the most that are goo...

how does data clustering help in image or pattern recognition

I have been playing around with different data clustering algorithms working on finding clusters between random data points represented an nodes, I keep reading that data clustering is used for image recognition. I am failing to make the connection, how does clustering data help in recognizing an image or in facial recognition. can someo...

C++ image recognition library

I am trying to make a program to count colonies of bacteria using a camera. I will be writing it in C++ and need an image recognition library that is easy to setup. I will be using visual studios so a template would be nice. Any ideas? ...

comparing images programmatically - lib or class

My objective is to supply 2 image files, and get a true/false response as to whether these 2 files could be the same (within an acceptable degree of certainty). I realize this question falls under artificial intelligence and is much more complex than it appears, so I highly doubt I could (or would even want to) do it myself. What I'm l...

image to barcode recognition

Hello, I know this has been discussed a few times on stackoverflow but I wasn't able to find a sufficient answer. For a project, I am seeking the best possible piece of software/api/library that can recognise barcode numbers from the input image. It will be used on mobile phones(iphone, windows mobile, android etc.) so it should be goo...

Finding most proper standard for image [Image recognition]

We have some examples of pictures. And we have on input set of pictures. Every input picture is one of example after combination of next things 1) Rotating 2) Scaling 3) Cutting part of it 4) Adding noise 5) Using filter of some color It is guarantee that human can recognize picture ease. I need simple but effective algorithm to ...

Python OCR library or handwritten character recognition engine

Could you recommend some python libraries or source code for OCR and handwritten character recognition? ...

Resources for Image Recognition

I am looking for a recommendation for an introduction to image processing algorithms (face and shape recognition, etc.) and wondered if anyone had an good recommendations, either for books, whitepapers or websites. I am starting from knowing very little about image recognition and did some maths at University (a long time ago). Any h...