Looking for an Image Comparison/Pattern Recognition Library

The end goal would be to see if

contains

the compare needs to support minor distortion, scaling, color differences, rotation, and brightness differences.

it can be in any language really. i will be running this algorithm as a webservice so i开发者_高级运维ts no problem if i have to write this portion in c, c++, python, etc.

You should probably take a look at OpenCV and VLfeat.

Object detection can be performed for example using

• Rapidminer IMMI (image mining extension for one of the leading open-source data-mining platform)
• BoofCV (using SURF feature detection)

How about ImageMagick? Its not a library per se however if you can provide shell access to your environment its pretty easy to use.

You would most probably be interested in the compare command.

EDIT: ImageMagick does contain tools for sub-image search like subimage-search.

Look at this - http://gallery.azureml.net/MachineLearningAPI/02ce55bbc0ab4fea9422fe019995c02f - it supports OCR. This also supports multiple languages and distortion - http://www.projectoxford.ai/doc/vision/OCR