fingerprint

JPEG built-in checksum / fingerprint?

I'm putting together a script to find remove duplicates in a large library of images. At the moment I'm doing a two pass filter of first finding files of the same size and then doing a sha256 on a 10240 byte piece of the file to get a fingerprint of the files with the same size (code here). It works well, but I'm guessing there are prob...

How to remove the background from a fingerprint image?

I have a fingerprint image taken from a sliding scanner. However the output does not have clean background. It looks like this: I want to remove the background so that further processing will be more accurate. Something like this: How to do that? What image processing technique (if any) can be used? Thank you. ...

Is there a fingerprint reader api/sdk?

I need to read the user's fingerprint from my application. What I really want is a simple SDK that works with a lot of inexpensive fingerprint readers but I can deal with something that works only with one specific model if that model is cheap and available worldwide. And it has to be royalty-free, I can pay for a development license b...

Can you help with a Delphi code sample for fingerprint recognition?

Do you know where can I find a Delphi code sample for fingerprint recognition from an image file. ...

.NET Fingerprint SDK

I am looking for a comparison of Fingerprint reader SDKs available for .NET (we are using .Net 3.5). My requirements are 1. Associate more than one fingerprint with a person. 2. Store the fingerprints it self. (So I do not have to change the Database for my program.) 3. Work in both event and no-event mode. (Event Mode: Give notifi...

Image fingerprint to compare similarity of many images

I need to create fingerprints of many images (about 100.000 existing, 1000 new per day, RGB, JPEG, max size 800x800) to compare every image to every other image very fast. I can't use binary compare methods because also images which are nearly similar should be recognized. Best would be an existing library, but also some hints to existi...

fingerprint verification

hi. i am doing my final year proj in fingerprint authentication. i 've completed binarization, thinning, minutiae extraction. i am doing it in matlab. i am stuck with the verification. i don't know how to perform verification. so please help me out to solve this problem. i would be grateful to ppl who help .. thanks in advance. please he...

fingerprint verification

hi. i am doing my final year proj in fingerprint authentication. i 've completed binarization, thinning, minutiae extraction. i am doing it in matlab. i am stuck with the verification. i don't know how to perform verification. so please help me out to solve this problem. i would be grateful to ppl who help .. thanks in advance. please he...

Online fingerprint authentication

Hi there; The company has a web-based punch card application, but my boss wants to make employees punch in and out using their fingerprint rather than sharable passwords. Is there any free/open source/commercial SDKs that can be used? With a Java or ActiveX based embeddable component? Thanks in advance. ...

Fingerprint SDK

Hi, I am using fingerprint reader UFP20.The SDK providing 2 DLL files (WIS_API.dll,WisCmos2.dll). Unfortunately they not provide c# demo code. I could connect the device and test the device. Its working perfectly. Problem : I can't capture finger print even capture initialize function working perfectly. I got error when i c...

Java and Fingerprint Recognition

Has anyone implement fingerprint recognition system in Java? ...

Audio normalization/fixation ?

I am using some audio fingerprinting technique to mark songs in long recordings. For example, in radio show records. Fingerprinting mechanism works fine but i have a problem with normalization (or downsampling). Here you can see two same songs but different waveforms. I know i should make some DC Offset fixation and use some high and...

Efficient way to fingerprint an image (jpg, png, etc)?

Is there an efficient way to get a fingerprint of an image for duplicate detection? That is, given an image file, say a jpg or png, I'd like to be able to quickly calculate a value that identifies the image content and is fairly resilient to other aspects of the image (eg. the image metadata) changing. If it deals with resizing that's ...

Storing and comparing biometric information

In general we use biometrics in computer applications say for authentication. Lets get 2 examples finger prints and facial recognition. In those cases how we keep the information for comparison. As an example we can't keep a image and process it every time. So what are the methodologies we use to store/determine the similarity in such c...

fingerprint UFP20.The SDK server side dll

I am using fingerprint reader UFP20. There is a seperate dll called WebSvrMatch.dll for server side usage which is different from client side dll in that it does not reguire fingerprint device to be connected to the comp. The example in Web folder uses ASP/VB , I tried to use it in PL/SQL and C# but in both cases I failed. The WebSvrMatc...

Best way to Fingerprint and Verify html structure.

Hello there, I just want to know what is your opinion about how to fingerprint/verify html/links structure. The problem I want to solve is: fingerprint for example 10 different sites, html pages. And after some time I want to have possibility to verify them, so is, if site has been changed, links changed, verification fails, othervise...

Is there a way to use a fingerprint scanner with Flex?

I was curious if it's posible to integrate a fingerprint scanner to a Flash/Flex/AIR application, I can't seem to find anything on the web. ...

fingerprint reader or thumb reader

I am wanting to develop an Automatic Attendance System using a thumb reader. When the user enters the office campus, they must put their thumb on to a thumb reader and is then marked as present. Can anyone suggest a thumb reader that supports API for reading and comparing thumb-print images, so that I can easily integrate it with my att...

How to get the image from the fingerprint scanner?

I'm using C++ and I have to capture image from fingerprint scanner. Is there some libraries for this case? I need free solutions. And better cross-platform solutions, but the aim-OS is Vista. May be there are some methods in Qt4? It would be best solution for me. ...

Microsoft Thumb Reader

Has anyone used the Microsoft thumb reader? Where can I find detailed API documentation for it? Does it have a built in identification system? Does it support Java? ...