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I'm looking for a Java framework to help with some data mining specific to images. We have a set of historical images that I would like to categorize and classify. I'm was hoping to find something like weka http://www.cs.waikato.ac.nz/ml/weka/ or Marsyas http://marsyas.sness.net but more specific to sifting through image data to find patterns. Any suggestions?
What about using the OpenCV library for Processing? Technically, Processing is not Java, but it runs on the JVM and shouldn't be difficult to get working. OpenCV is the standard choice for computer vision, which is what you're trying to do.
I played around with Neuroph (http://neuroph.sourceforge.net) which is a neural network framework for Java, and they have a very nice image recognition tutorial that I think everybody should read, but specially if you're dealing with image recognition: http://neuroph.sourceforge.net/image_recognition.html
Have a look at OpenCV with JavaCV libraries from Google. Simply use function from that library to find whatever patterns you want.
It'll be a great surprise for me if you can find such library.
I can advice you to find some library with ART neural network implementation. Then you can add some photos to each category you want to recognize and ART algorithm will try to recognize all other photos.
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I want to read content(text data) from jpg image. Can someone give me a sample java program to refer.
The image would be a white page. The text would be in black. How do I extract data(lines/alphabets) and print it.
Help would be much appreciated.
Thanks
Take a look at this SO question for OCR in Java. Once you are able to pull out the text, doing manipulations on the text can be taken care of by using Apache Lucene. Also, in case you are interested in image metadata as well, Apache Tika might be useful.
Pay attention for products by ABBYY. For example there is ABBYY Cloud OCR SDK – cloud-based OCR technology. It has very high recognition accuracy, a lot of documentation and good support.
You can try to use it in several easy steps:
1. Create a free account
2. Create an application using code samples for Java
If you need additional help, use ABBYY's forum or publish your questions in comments below.
I work for ABBYY and ready to help you.
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I am looking for a framework to visualize Circuit Diagrams in Java application.
I have to show Diagrams like that:
For one of my previous projects (in 2008 year) I used Jung. It worked well, but maybe somebody could propose more suitable for my needs framework? Does anyone have a similar task or know a good tools?
Also one of my tasks is to try to layout elements, because there is only info about connections in DB, but there is no layout information. I want to try to minimize manual layout work and looking for layout algorithms.
Thank you in advance.
PS: It is very desirable that the framework will be free.
PPS: Also I am interested in frameworks which can help to show (and edit) such type of diagrams using web browser.
Prefuse is very similar to Jung. I haven't used it extensively but I evaluated both Jung and Prefuse for our graph application.
Another web based option is Protovis which I came across during my evaluation. You can draw interactive graphs with it but I suspect you might need layout information already available to use this tool. Anyway looks like the authors are moving to a new library named D3 so you can check that out.
Another option I see is graphviz.
Here is a big list of graph visualization tools. http://www.mkbergman.com/414/large-scale-rdf-graph-visualization-tools/
I found a java framework named circuit. I think it could help you fix your issue.
http://code.google.com/p/circuit-framework/
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I am looking for an open source audio library similar to BASS from un4seen (http://www.un4seen.com/) to be used in Java applications. Could someone point me to a similar project?
If you don't mind using native libraries, OpenAL has at least these two Java wrappers:
JOAL
LWJGL
I have yet to try it myself, but it feels pretty solid as LWJGL, which many games are based on, has chosen to use it.
Try Beads: http://www.beadsproject.net. Available as jar, processing library or Eclipse project.
How about JSyn ? According to their website, they will release the source code soon.
Another alternative is FMJ. I actually think this is better than the JSyn which I specified above.
Check out jAudio as well.
JSyn, a modular audio synthesizer, was just released as open source on GitHub under the Apache License V2.
https://github.com/philburk/jsyn
As of 2015
FMJ and JAudio are pretty out of date.
JSyn and Beads are good to go.
of the two, JSyn is more popular in Google, but beads has a seemingly more active community.
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i am wondering if there is any opensource and freeware solution to extract roads from an image, like google map images?
i think it maybe possible to code something like that with AI solutions, but i dont know where to start
thnx
If you're mainly interested in the results, instead of an algorithm, you may want to check out OpenStreetMaps.
Otherwise, you should focus on computer vision solutions and a framework such as OpenCV in order to process raw imagery and filter out streets based on their features – which is not trivial.
This sounds like it would be a valuable resource to cartographers ranging from 'street directory' publishers to the military.
I'm sure proprietary commercial software exists, but open source and freeware — probably not.
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I need an open source GIS that allows one to view/zoom/click the maps using a web browser and should be java compliant (deployable on a java app server).
Well, I have tried to structure the requirement in 'what-i-have' and 'what-i-need' lists:
Inputs:
Location: lat/long
Data : Text to display
zoom level: (assume there are about 5)
Output
Data displayed on a Map
Would appreciate all the help I can get.
Thanks.
UPDATE: GeoServer + OpenLayers seems to be the best fit for this requirement
GeoServer: http://geoserver.org/display/GEOS/Welcome
...is what I use. You have work ahead of you no matter what you pick, though. Setting up data sources and making them look nice is a decent amount of effort.
For the client side, OpenLayers is an excellent Javascript library.
I agree with the geoserver response and all the rest of the responses ignore your statement that is has to work with Java. The only other bad option would be to write something yourself using geotools.
Go to the OpenGeo site and see the stack they support. That is the stack you are probably most interested in deploying.
I guess you'll need:
GDAL/OGR to translate the data into a kml file example
Take that KML file and pump it into either:
a. Google maps api or openlayers
b. I've had lots of luck using featuresever which I personally recommend