java - UnsatisfiedLinkError: org.opencv.highgui.Highgui.imread_0 (OpenCV Java)

Question

我试图在 servlet 中使用 OpenCV，但每次运行 servlet 时都会弹出此错误。这是相同的堆栈跟踪:

SEVERE: Servlet.service() for servlet [com.patternrecognition.preprocessing.Preprocessing] in context with path     **[/ImagePreprocessing] threw exception [Servlet execution threw an exception] with root cause
java.lang.UnsatisfiedLinkError: org.opencv.highgui.Highgui.imread_0(Ljava/lang/String;I)J
at org.opencv.highgui.Highgui.imread_0(Native Method)
at org.opencv.highgui.Highgui.imread(Highgui.java:309)**
at com.patternrecognition.preprocessing.Preprocessing.smooth(Preprocessing.java:168)
at com.patternrecognition.preprocessing.Preprocessing.startPreprocessing(Preprocessing.java:56)
at com.patternrecognition.preprocessing.Preprocessing.doGet(Preprocessing.java:46)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)

我的项目时间不多了。请帮忙。

Answer 1

我通过使用方法“imread”读取的图像的绝对路径解决了这个问题。因为它是一个 web 项目，所以它没有采用默认项目文件夹的相对路径。

我在做:

Highgui.imread("img_perspective.png", Highgui.CV_LOAD_IMAGE_GRAYSCALE);

我把它改成:

Highgui.imread("C:/Users/ImagePreprocessing/WebContent/WEB-INF/img_perspective.png", Highgui.CV_LOAD_IMAGE_GRAYSCALE);

希望对您有所帮助。