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JavaCPP Presets for FlyCapture

Gitter Maven Central Sonatype Nexus (Snapshots)
Build status for all platforms: flycapture Commercial support: xscode

Introduction

This directory contains the JavaCPP Presets module for:

Please refer to the parent README.md file for more detailed information about the JavaCPP Presets.

Documentation

Java API documentation is available here:

Sample Usage

Here is a simple example of FlyCapture ported to Java from this C++ source file:

We can use Maven 3 to download and install automatically all the class files as well as the native binaries. To run this sample code, after creating the pom.xml and FlyCapture2Test.java source files below, simply execute on the command line:

 $ mvn compile exec:java

The pom.xml build file

<project>
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.bytedeco.flycapture</groupId>
    <artifactId>flycapture2test</artifactId>
    <version>1.5.9</version>
    <properties>
        <exec.mainClass>FlyCapture2Test</exec.mainClass>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.bytedeco</groupId>
            <artifactId>flycapture-platform</artifactId>
            <version>2.13.3.31-1.5.9</version>
        </dependency>
    </dependencies>
    <build>
        <sourceDirectory>.</sourceDirectory>
    </build>
</project>

The FlyCapture2Test.java source file

//=============================================================================
// Copyright © 2008 Point Grey Research, Inc. All Rights Reserved.
//
// This software is the confidential and proprietary information of Point
// Grey Research, Inc. ("Confidential Information").  You shall not
// disclose such Confidential Information and shall use it only in
// accordance with the terms of the license agreement you entered into
// with PGR.
//
// PGR MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
// SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE, OR NON-INFRINGEMENT. PGR SHALL NOT BE LIABLE FOR ANY DAMAGES
// SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
// THIS SOFTWARE OR ITS DERIVATIVES.
//=============================================================================
//=============================================================================
// $Id: FlyCapture2Test.cpp,v 1.18 2009/09/08 22:10:50 soowei Exp $
//=============================================================================

import java.io.*;
import org.bytedeco.javacpp.*;
import org.bytedeco.flycapture.FlyCapture2.*;
import org.bytedeco.flycapture.FlyCapture2.Error;
import static org.bytedeco.flycapture.global.FlyCapture2.*;

public class FlyCapture2Test {
    static void PrintBuildInfo() {
        FC2Version fc2Version = new FC2Version();
        Utilities.GetLibraryVersion(fc2Version);
        System.out.println("FlyCapture2 library version: "
                + fc2Version.major() + "." + fc2Version.minor() + "."
                + fc2Version.type() + "." + fc2Version.build());

        System.out.println("JavaCPP Presets version: "
                + org.bytedeco.flycapture.global.FlyCapture2.class.getPackage().getImplementationVersion());
    }

    static void PrintCameraInfo(CameraInfo pCamInfo) {
        System.out.println(
            "\n*** CAMERA INFORMATION ***\n"
          + "Serial number - " + pCamInfo.serialNumber() + "\n"
          + "Camera model - " + pCamInfo.modelName().getString() + "\n"
          + "Camera vendor - " + pCamInfo.vendorName().getString() + "\n"
          + "Sensor - " + pCamInfo.sensorInfo().getString() + "\n"
          + "Resolution - " + pCamInfo.sensorResolution().getString() + "\n"
          + "Firmware version - " + pCamInfo.firmwareVersion().getString() + "\n"
          + "Firmware build time - " + pCamInfo.firmwareBuildTime().getString() + "\n");
    }

    static void PrintError(Error error) {
        error.PrintErrorTrace();
    }

    static int RunSingleCamera(PGRGuid guid) {
        final int k_numImages = 10;

        Error error;
        Camera cam = new Camera();

        // Connect to a camera
        error = cam.Connect(guid);
        if (error.notEquals(PGRERROR_OK)) {
            PrintError(error);
            return -1;
        }

        // Get the camera information
        CameraInfo camInfo = new CameraInfo();
        error = cam.GetCameraInfo(camInfo);
        if (error.notEquals(PGRERROR_OK)) {
            PrintError(error);
            return -1;
        }

        PrintCameraInfo(camInfo);

        // Start capturing images
        error = cam.StartCapture();
        if (error.notEquals(PGRERROR_OK)) {
            PrintError(error);
            return -1;
        }

        Image rawImage = new Image();
        for (int imageCnt = 0; imageCnt < k_numImages; imageCnt++) {
            // Retrieve an image
            error = cam.RetrieveBuffer(rawImage);
            if (error.notEquals(PGRERROR_OK)) {
                PrintError(error);
                continue;
            }

            System.out.println("Grabbed image " + imageCnt);

            // Create a converted image
            Image convertedImage = new Image();

            // Convert the raw image
            error = rawImage.Convert(PIXEL_FORMAT_MONO8, convertedImage);
            if (error.notEquals(PGRERROR_OK)) {
                PrintError(error);
                return -1;
            }

            // Create a unique filename
            String filename = camInfo.serialNumber() + "-" + imageCnt + ".pgm";

            // Save the image. If a file format is not passed in, then the file
            // extension is parsed to attempt to determine the file format.
            error = convertedImage.Save(filename);
            if (error.notEquals(PGRERROR_OK)) {
                PrintError(error);
                return -1;
            }
        }

        // Stop capturing images
        error = cam.StopCapture();
        if (error.notEquals(PGRERROR_OK)) {
            PrintError(error);
            return -1;
        }

        // Disconnect the camera
        error = cam.Disconnect();
        if (error.notEquals(PGRERROR_OK)) {
            PrintError(error);
            return -1;
        }

        return 0;
    }

    public static void main(String[] args) throws IOException {
        PrintBuildInfo();

        Error error;

        // Since this application saves images in the current folder
        // we must ensure that we have permission to write to this folder.
        // If we do not have permission, fail right away.
        File tempFile = new File("test.txt");
        try {
            new FileOutputStream(tempFile).close();
        } catch (IOException e) {
            System.out.println("Failed to create file in current folder.  "
                             + "Please check permissions.");
            System.exit(-1);
        }
        tempFile.delete();

        BusManager busMgr = new BusManager();
        int[] numCameras = new int[1];
        error = busMgr.GetNumOfCameras(numCameras);
        if (error.notEquals(PGRERROR_OK)) {
            PrintError(error);
            System.exit(-1);
        }

        System.out.println("Number of cameras detected: " + numCameras[0]);

        for (int i = 0; i < numCameras[0]; i++) {
            PGRGuid guid = new PGRGuid();
            error = busMgr.GetCameraFromIndex(i, guid);
            if (error.notEquals(PGRERROR_OK)) {
                PrintError(error);
                System.exit(-1);
            }

            RunSingleCamera(guid);
        }

        System.out.println("Done! Press Enter to exit...");
        System.in.read();
    }
}