NBIS4j is Java library targeted to wrap functionalities implemented in the NIST Biometric Image Software (NBIS) distribution which is developed by the National Institute of Standards and Technology (NIST) for the Federal Bureau of Investigation (FBI) and Department of Homeland Security (DHS). Please see https://www.nist.gov/services-resources/software/nist-biometric-image-software-nbis for details.

• NBIS installed, installation directory path must be exported as NBIS_ROOT in OS environment variables.
• GCC >= 4.8
• CMake >= 3.10
• Java >= 1.8
• Gradle >= 6.0

$ gradle clean cmakeBuild build
$ gradle test -DdataDir=/path/to/fingerprints

import io.github.nbis4j.ImageFormat;
import io.github.nbis4j.NFIQ;

int nfiqOfWSQ(byte[] data) {
    return NFIQ.compute(byte[] data, ImageFormat.WSQ);
}

int nfiqOfBMP(byte[] data) {
    return NFIQ.compute(byte[] data, ImageFormat.BMP);
}

import io.github.nbis4j.Bitmap;
import io.github.nbis4j.WSQCodec;

byte[] encodeBitmap(byte[] pixels, int width, int height) {
    return WSQCodec.encode(new Bitmap(pixels, width, height));
}

Bitmap decodeWSQ(byte[] wsq) {
    return WSQCodec.decode(wsq);
}

• AN2K
• JP2
• NFSEG

This project is licensed under the terms of the MIT license.