i have already developed a code in java for face recognition. i resized my images in the database as 80*80. when i use the input image as higher number of pixels my program is not recognizing the image in the database. it is using PGM.i want to change my program to perform with jpeg. i dont know what to do now.
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The java applet code can only communicate with the server the applet was loaded from (unless it is signed and trusted by the browser).
Then, you need one of the following : Either *) Your database server will need to be the same as your web server (and open to the world). This is not recommended at all, for security reasons mainly, but also performance reasons. *) You will need some server side scripts (php and/or cgi) to handle specific requests from the applet and send the information back. (Give some thought to the fact that people might access these scripts without the applet, and will be able to see all the communication between applet and script)
For you to be able to do this you would need a separate standalone program. Your web application would try to detect if that program is running or installed on your client's computer if it is then your webapplication would send a request to the local application to run the face capture, if not then your webapplication would require the download of the software.
With regard to your local standalone software. you could do that in visual basic. make sure that your standalone code would also be a small webserver.
so what your web application actually does is it sends a request to the localhost or client computer, assuming that the local standalone is present then your webapplication would be able to connect to it through the small webserver. Well, the main point is that the local software would be the control for the webcam and also the means fo communication between it and your web application.
No and here's why... Java is a programming language; its purpose is to be used to create programs that do useful things, but it is not equipped to do the complex analyses required to convert images to text. What you need is an OCR "image to text" conversion software application. Java is not such an application; it is a programming language meant to be used by programmers in a "platform independent context" (usually the World Wide Web). I suggest searching Google for what you need using these keyword strings: OCR image-to-text software. OCR stands for Optical Character Recognition.
Note that performing OCR on handwritten text is particularly difficult because it is so non-uniform (irregular). Here is a link that may be helpful in your quest for what is on its face at least by the way you asked, a very difficult process: http://www.softpedia.com/get/Office-tools/Other-Office-Tools/OCR-Image-to-Text-Conversion-Tool.shtml.
As one of my best programming professors (who taught me Java) used to say, "Yes, anything is possible in creating a computer program, but only if you have enough what? Skills, money and time to get the job done! Don't forget: time is money, so you know, don't bite off more than you can chew."
Creating a java application to make bluetooth connections is not a trivial task. First of all you need to look at the appropiate bluetooth development kit for the platform you are using. You can find some here.
Some are free, some you will have to pay for. Once you have selected the right one, follow the documentation and look ad the demo code provided.
I used aventana (http://www.avetana-gmbh.de/avetana-gmbh/produkte/jsr82.eng.xml) quite successfully in the past.