Image recognition library/API for iPhone code [closed]

Answer 1

The whole field of image recognition has changed with the advent of Deep Neural Networks. However you need a powerful machine to train your own neural net. You can also use vize.it, though - It is an easy-to-use online app that lets you define the task and classify images by using http API.

Disclaimer: I am a PhD student of Artificial Intelligence who is a member of the vize.it team.

Answer 2

Just to extend the list:

• ARLab Image Matching
• intopii
• kooaba
• Moodstocks
• OpenCV
• PointCloud
• recognize.im
• IQ Engines (joined Yahoo Inc. and is no longer available)

Answer 3

Try the following two APIs:

• http://iqengines.com;
• http://intopii.com

Answer 4

Pastec is an open source (LGPL) alternative to the service already mentioned.

Its simple HTTP API allows to easily add, remove and search for matching images in the index. It is based on OpenCV and uses the ORB descriptor, which is patent-free.

Answer 5

You can also have a look at Moodstocks, they provide a great API and iOS SDK to implement image recognition in your app in minutes.

Answer 6

OpenCV library (for iPhone) contains many algorithms. You can simply compare color histograms of images, or use more complicated stuff. Which kind of matching do you mean? Finding duplicates or calculating measure of similarity of images?

If you want to match some simple template to find objects then try Viola & Jones algorithm and so called Haar cascades. OpenCV has trained collection of templates in XML files for detecting faces for example. OpenCV contains utility for training thus you are able to generate cascades for other kinds of objects