Many thanks for your time and comments emexes. In answer to your interest - we're a small South African software company and one of our clients is a specialist Courier delivering Bank cards, Mobile phone SimCards and official Id documents etc. that sometimes (by law) need very tight identity verification. The way it is done and what one is allowed to hold etc., are also very strictly legislated. The WSQ format is one of the requirements for those instances where they are required to verify a consignee by fingerprint.I'm thinking that the tsunami of replies indicates: perhaps not.
I did find this Android app, though:
via that the same company produces a Windows SDK for converting to/from the format, so perhaps they have a Java SDK hidden somewhere too.
My original thinking was that my usual image catalog/view program that I've used for 15 years (ThumbsPlus) does everything I need, but it's so good that I haven't updated for ages, and it looks like the current version doesn't support WSQ anyway, so... nice try, no cigar.
Then I looked at www.irfanview.com (is free) and their website there is a WSQ plugin available "WSQ - (version 2008.12.16): allows IrfanView to WSQ (Wavelet Scaler Quantization) files" and so you might be able to track something down via that.
I also found https://www.xnview.com/en/xnconvert/ that advertises SDKs for Windows, Mac and Linux, and so that guy might be up for creating an Android version too.
But... why do you need it? Are you exchanging files with the FBI, or are you just using it because that's the standard that they use. Because WSQ is just an 8-bit grayscale with (minimally) lossy compression, and given today's larger storage options compared to the 1990's, PNG would be be a much more convenient, flexible and widely-supported format (and lossless to boot, albeit larger).
a paid one for $250 or soso perhaps they have a Java SDK hidden somewhere too.
you may want to check https://github.com/kareez/jnbiswe're a small South African software company and one of our clients
"When a typical fingerprint card is scanned at 500 dpi, with 8 bits/pixel, it results in about 10Mb of data. For 200 million cards, the total size of the digitized collection would be more than 2000 terabytes .Finger print images are routinely sent between law enforcement agencies. Overnight delivery of the actual card is too slow and risky, and sending 10 Mb of data through a 9600 baud modem takes about three hours. Compression is, therefore, a must. At first, it seems that fingerprint compression must be lossless because of the small but important details involved. However, lossless compression methods produce typical compression ratios of 0.5. Most lossy image compression methods involve the loss of small details and are therefore unacceptable. This is where wavelets come into the picture."
22.214.171.124 For Normal Memory Devices
The fingerprint image captured during the enrolment process should be transmitted in lossless format (RAW, PNG or Lossless JPEG2000 ) from client system to the server for storage / archival in the standardized format for future usage.
we're a small South African software company
very strictly legislated. The WSQ format is one of the requirements
a paid one for $250 or so
a short trying from Android.I would start trying with the free lib i posted above.
File.Copy(File.DirAssets,"sample_image.wsq",File.DirInternal,"sample_image.wsq") nativeMe.InitializeContext Dim jo As JavaObject jo.InitializeStatic("org.jnbis.api.Jnbis").RunMethodJO("wsq",Null).RunMethodJO("decode",Array(File.Combine(File.DirInternal,"sample_image.wsq"))).RunMethodJO("toPng",Array()).RunMethodJO("asFile",Array(File.Combine(File.DirInternal,"sample_image.png")))
They do provide the lib in many formats. The price of around $US 250 seems to be ok for such a security Library.Based on
i can see that they do provide the Lib in many formats. Even one which can be used in Android. For B4A it needs to have a wrapper written for though.
The NIST Biometric Image Software ... ; it is freely distributed with no licensing requirements; and it is considered public domain.
The NBIS utilities fall under eight general categories:
A reference implementation of the ANSI/NIST-ITL 1-2007 (AN2K) "Data Format for the Interchange of Fingerprint, Facial, Scar Mark & Tattoo (SMT) Information" standard is included. This reference implementation contains a suite of utilities designed to read, write, edit, and manipulate files formatted according to this interchange standard.
Source code is provided for Baseline JPEG, Lossless JPEG, and the FBI's Wavelet Scalar Quantization (WSQ) encoders and decoders.