Android 安卓:Tesseract无法';不要加载任何语言
大家好,我正在尝试运行Tesseract并从图像中获取文本,但遇到以下错误:Android 安卓:Tesseract无法';不要加载任何语言,android,maven,tesseract,tess4j,Android,Maven,Tesseract,Tess4j,大家好,我正在尝试运行Tesseract并从图像中获取文本,但遇到以下错误: Exception in thread "main" java.lang.Error: Invalid memory access at com.sun.jna.Native.invokePointer(Native Method) at com.sun.jna.Function.invokePointer(Function.java:477) at com.sun.jna.Function.invoke(Functi
Exception in thread "main" java.lang.Error: Invalid memory access
at com.sun.jna.Native.invokePointer(Native Method)
at com.sun.jna.Function.invokePointer(Function.java:477)
at com.sun.jna.Function.invoke(Function.java:411)
at com.sun.jna.Function.invoke(Function.java:323)
at com.sun.jna.Library$Handler.invoke(Library.java:236)
at com.sun.proxy.$Proxy0.TessBaseAPIGetUTF8Text(Unknown Source)
at net.sourceforge.tess4j.Tesseract.getOCRText(Tesseract.java:436)
at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:291)
at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:212)
at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:196)
at Crop_Image.main(Crop_Image.java:98)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
Error opening data file ./tessdata/eng.traineddata
Please make sure the TESSDATA_PREFIX environment variable is set to the parent directory of your "tessdata" directory.
Failed loading language 'eng'
Tesseract couldn't load any languages!
我正在加载一个包含英文文本的图像文件jpg
。这是我尝试加载文件然后尝试从中获取文本的方式:
public static void main(String[] args){
String result = "";
File imageFile = new File("C:\\Users\\user\\Desktop\\Untitled.jpg");
Tesseract instance = new Tesseract();
try {
result = instance.doOCR(imageFile);
result.toString();
} catch (Exception e) {
e.printStackTrace();
System.err.println(e.getMessage());
}
}
此外,我还在我的项目中使用Maven
,这是我的pom
文件:
<dependencies>
<dependency>
<groupId>nu.pattern</groupId>
<artifactId>opencv</artifactId>
<version>2.4.9-4</version>
</dependency>
<dependency>
<groupId>net.sourceforge.tess4j</groupId>
<artifactId>tess4j</artifactId>
<version>3.1.0</version>
</dependency>
</dependencies>
nu.pattern
opencv
2.4.9-4
net.sourceforge.4j
tess4j
3.1.0
这一错误的原因可能是什么 您需要将
instance.setDatapath
设置为tessdata
文件夹的父目录
File tessDataFolder = LoadLibs.extractTessResources("tessdata"); // Maven build bundles English data
instance.setDatapath(tessDataFolder.getParent());
请参阅。您需要将
instance.setDatapath
设置为tessdata
文件夹的父目录
File tessDataFolder = LoadLibs.extractTessResources("tessdata"); // Maven build bundles English data
instance.setDatapath(tessDataFolder.getParent());
请参阅。我看到了您的代码,您初始化
teseract
的方式可能有问题。现在,由于您使用的是nguyenq建议的maven
,因此您需要准确地指向库的位置-tessdata
,因此以下是您应该做的:
public static String Image_To_Text(String image_path){
String result = "";
File imageFile = new File("your path to your image");
Tesseract instance = Tesseract.getInstance();
//In case you don't have your own tessdata, let it also be extracted for you
File tessDataFolder = LoadLibs.extractTessResources("tessdata");
//Set the tessdata path
instance.setDatapath(tessDataFolder.getAbsolutePath());
try {
result = instance.doOCR(imageFile);
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
我看到了您的代码,您初始化
teseract
的方式可能有问题。现在,由于您使用的是nguyenq建议的maven
,因此您需要准确地指向库的位置-tessdata
,因此以下是您应该做的:
public static String Image_To_Text(String image_path){
String result = "";
File imageFile = new File("your path to your image");
Tesseract instance = Tesseract.getInstance();
//In case you don't have your own tessdata, let it also be extracted for you
File tessDataFolder = LoadLibs.extractTessResources("tessdata");
//Set the tessdata path
instance.setDatapath(tessDataFolder.getAbsolutePath());
try {
result = instance.doOCR(imageFile);
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
是的,我计算了那么多,但我使用的是
maven
,所以即使我指向.jar
文件的目录,也是同样的错误。@nguyenq嗨,nguyen!我非常喜欢你的产品Vietor使用tesseract。我必须开发同样的东西,但它可以识别阿拉伯字符。我可以获取您的代码并尝试修改它以识别阿拉伯语吗?我尝试了tesseract,但文件ara.traineddata不太好,我没有得到我想要的结果。你能帮我吗?是的,我想了很多,但我使用的是maven
,所以即使我指向.jar
文件的目录,也会出现同样的错误。@nguyenq hi nguyen!我非常喜欢你的产品Vietor使用tesseract。我必须开发同样的东西,但它可以识别阿拉伯字符。我可以获取您的代码并尝试修改它以识别阿拉伯语吗?我尝试了tesseract,但文件ara.traineddata不太好,我没有得到我想要的结果。你能帮我吗?