我已经为 PS3eye 相机安装了 Cleye 驱动程序（驱动程序 5.3.0.0341 和 SDK 1.6.4.0028），并且我正在尝试在 Cl-eye 平台 SDK 中运行处理示例（java）。问题是处理库，更具体地说是 ClEyeMulticam.dll 没有加载，但偶尔（如 8 次中有 1 次）加载成功。为什么有时会加载该dll而有时不会加载该dll？我正在使用处理 2.2.1 32bit，我尝试在处理中手动指定路径，但它不起作用：“CLCamera.loadLibrary("C:/CLEyeMulticam.dll");"
Java示例代码：
///////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// This file is part of CL-EyeMulticam SDK
//
// Java Processing CLEyeProcessingTest Sketch
//
// It allows the use of multiple CL-Eye cameras in your own Java Processing applications
//
// For updates and file downloads go to: http://codelaboratories.com/about/product/eye
//
// Copyright 2008-2012 (c) Code Laboratories, Inc. All rights reserved.
//
// Dependancies: CLEyeMulticam.dll - CL-Eye Platform Multicam API
// CLEyeMulticam.jar - For processing.org move this into your libraries folder
//
////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Imports
import cl.eye.*;
// Camera Variables
int numCams;
CLCamera myCameras[] = new CLCamera[2];
PImage myImages[] = new PImage[2];
int cameraWidth = 640;
int cameraHeight = 480;
int cameraRate = 30;
// Animation Variables (not required)
boolean animate = true;
float zoomVal, zoomDelta;
float rotateVal, rotateDelta;
void setup(){
// Library loading via native interface (JNI)
// If you see "UnsatisfiedLinkError" then target the library path otherwise leave it commented out.
// CLCamera.loadLibrary("C://PATH//TO//CL-EYE SDK FOLDER//Bin/CLEyeMulticam.dll");
// Verifies the native library loaded
if(!setupCameras()) exit();
// Setups animated variables
if(animate) setupAnimation();
}
void draw(){
// Loops through available cameras and updates
for(int i = 0; i < numCams; i++)
{
// --------------------- (image destination, wait timeout)
myCameras[i].getCameraFrame(myImages[i].pixels, (i==0) ? 1000 : 0);
myImages[i].updatePixels();
image(myImages[i], cameraWidth*i, 0);
}
// Updates the animation
if(animate)updateAnimation();
}
boolean setupCameras(){
println("Getting number of cameras");
// Checks available cameras
numCams = CLCamera.cameraCount();
println("Found " + numCams + " cameras");
if(numCams == 0) return false;
// create cameras and start capture
for(int i = 0; i < numCams; i++)
{
// Prints Unique Identifier per camera
println("Camera " + (i+1) + " UUID " + CLCamera.cameraUUID(i));
// New camera instance per camera
myCameras[i] = new CLCamera(this);
// ----------------------(i, CLEYE_GRAYSCALE/COLOR, CLEYE_QVGA/VGA, Framerate)
myCameras[i].createCamera(i, CLCamera.CLEYE_COLOR_PROCESSED, CLCamera.CLEYE_VGA, cameraRate);
// Starts camera captures
myCameras[i].startCamera();
myImages[i] = createImage(cameraWidth, cameraHeight, RGB);
}
// resize the output window
size(cameraWidth*numCams, cameraHeight);
println("Complete Initializing Cameras");
return true;
}
void setupAnimation(){
// General Animation Variables
zoomVal = 0;
zoomDelta = TWO_PI/75.0;
rotateVal = 0;
rotateDelta = TWO_PI/125.0;
}
void updateAnimation(){
myCameras[0].setCameraParam(CLCamera.CLEYE_HKEYSTONE, (int)(150 * sin(rotateVal)));
myCameras[0].setCameraParam(CLCamera.CLEYE_VKEYSTONE, (int)(200 * cos(rotateVal)));
//myCameras[0].setCameraParam(Multicam.CLEYE_LENSCORRECTION1, (int)(75 * sin(rotateVal)));
if(numCams>1)
{
myCameras[1].setCameraParam(CLCamera.CLEYE_ZOOM, (int)(200 * sin(zoomVal)));
}
rotateVal += rotateDelta;
zoomVal += zoomDelta;
}
处理库源码：
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// This file is part of CL-EyeMulticam SDK
//
// Java JNI CLEyeMulticam wrapper
//
// It allows the use of multiple CL-Eye cameras in your own Java applications
//
// For updates and file downloads go to: http://codelaboratories.com/research/view/cl-eye-muticamera-sdk
//
// Copyright 2008-2012 (c) Code Laboratories, Inc. All rights reserved.
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
package cl.eye;
import processing.core.*;
public class CLCamera
{
// camera color mode
public static int CLEYE_MONO_PROCESSED = 0;
public static int CLEYE_COLOR_PROCESSED = 1;
public static int CLEYE_MONO_RAW = 2;
public static int CLEYE_COLOR_RAW = 3;
public static int CLEYE_BAYER_RAW = 4;
// camera resolution
public static int CLEYE_QVGA = 0;
public static int CLEYE_VGA = 1;
// camera sensor parameters
public static int CLEYE_AUTO_GAIN = 0; // [0, 1]
public static int CLEYE_GAIN = 1; // [0, 79]
public static int CLEYE_AUTO_EXPOSURE = 2; // [0, 1]
public static int CLEYE_EXPOSURE = 3; // [0, 511]
public static int CLEYE_AUTO_WHITEBALANCE = 4; // [0, 1]
public static int CLEYE_WHITEBALANCE_RED = 5; // [0, 255]
public static int CLEYE_WHITEBALANCE_GREEN = 6; // [0, 255]
public static int CLEYE_WHITEBALANCE_BLUE = 7; // [0, 255]
// camera linear transform parameters
public static int CLEYE_HFLIP = 8; // [0, 1]
public static int CLEYE_VFLIP = 9; // [0, 1]
public static int CLEYE_HKEYSTONE = 10; // [-500, 500]
public static int CLEYE_VKEYSTONE = 11; // [-500, 500]
public static int CLEYE_XOFFSET = 12; // [-500, 500]
public static int CLEYE_YOFFSET = 13; // [-500, 500]
public static int CLEYE_ROTATION = 14; // [-500, 500]
public static int CLEYE_ZOOM = 15; // [-500, 500]
// camera non-linear transform parameters
public static int CLEYE_LENSCORRECTION1 = 16; // [-500, 500]
public static int CLEYE_LENSCORRECTION2 = 17; // [-500, 500]
public static int CLEYE_LENSCORRECTION3 = 18; // [-500, 500]
public static int CLEYE_LENSBRIGHTNESS = 19; // [-500, 500]
native static int CLEyeGetCameraCount();
native static String CLEyeGetCameraUUID(int index);
native static int CLEyeCreateCamera(int cameraIndex, int mode, int resolution, int framerate);
native static boolean CLEyeDestroyCamera(int cameraIndex);
native static boolean CLEyeCameraStart(int cameraInstance);
native static boolean CLEyeCameraStop(int cameraInstance);
native static boolean CLEyeSetCameraParameter(int cameraInstance, int param, int val);
native static int CLEyeGetCameraParameter(int cameraInstance, int param);
native static boolean CLEyeCameraGetFrame(int cameraInstance, int[] imgData, int waitTimeout);
private int cameraInstance = 0;
private PApplet parent;
private static boolean libraryLoaded = false;
private static String dllpathx32 = "C://Program Files//Code Laboratories//CL-Eye Platform SDK//Bin//CLEyeMulticam.dll";
private static String dllpathx64 = "C://Program Files (x86)//Code Laboratories//CL-Eye Platform SDK//Bin//CLEyeMulticam.dll";
// static methods
static
{
try
{
System.load(dllpathx32);
libraryLoaded = true;
System.out.println("CLEyeMulticam.dll loaded");
}
catch(UnsatisfiedLinkError e1)
{
System.out.println("(1) Could not find the CLEyeMulticam.dll");
try
{
System.load(dllpathx64);
libraryLoaded = true;
System.out.println("CLEyeMulticam.dll loaded");
}
catch(UnsatisfiedLinkError e2)
{
System.out.println("(2) Could not find the CLEyeMulticam.dll");
}
}
}
public static boolean IsLibraryLoaded()
{
return libraryLoaded;
}
public static void loadLibrary(String libraryPath)
{
if(libraryLoaded) return;
try
{
System.load(libraryPath);
System.out.println("CLEyeMulticam.dll loaded");
}
catch(UnsatisfiedLinkError e1)
{
System.out.println("(3) Could not find the CLEyeMulticam.dll (Custom Path)");
}
}
public static int cameraCount()
{
return CLEyeGetCameraCount();
}
public static String cameraUUID(int index)
{
return CLEyeGetCameraUUID(index);
}
// public methods
public CLCamera(PApplet parent)
{
this.parent = parent;
parent.registerDispose(this);
}
public void dispose()
{
stopCamera();
destroyCamera();
}
public boolean createCamera(int cameraIndex, int mode, int resolution, int framerate)
{
cameraInstance = CLEyeCreateCamera(cameraIndex, mode, resolution, framerate);
return cameraInstance != 0;
}
public boolean destroyCamera()
{
return CLEyeDestroyCamera(cameraInstance);
}
public boolean startCamera()
{
return CLEyeCameraStart(cameraInstance);
}
public boolean stopCamera()
{
return CLEyeCameraStop(cameraInstance);
}
public boolean getCameraFrame(int[] imgData, int waitTimeout)
{
return CLEyeCameraGetFrame(cameraInstance, imgData, waitTimeout);
}
public boolean setCameraParam(int param, int val)
{
return CLEyeSetCameraParameter(cameraInstance, param, val);
}
public int getCameraParam(int param)
{
return CLEyeGetCameraParameter(cameraInstance, param);
}
}