所以,我一直在尝试用 Tesseract 制作一个 OCR 应用程序。所以我下载了 tess-two,用 NDK 构建它并作为模块添加到 Android Studio。我的问题来了。我的代码:
public class MainActivity extends ActionBarActivity implements View.OnClickListener {
private static final int SELECT_PHOTO = 100;
Button OCR_btn;
ImageView iv_pic;
Bitmap MyBitmap;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
OCR_btn=(Button) findViewById(R.id.OCR_button);
OCR_btn.setOnClickListener(this);
iv_pic=(ImageView) findViewById(R.id.iv_pic);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) {
super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
switch(requestCode) {
case SELECT_PHOTO:
if(resultCode == RESULT_OK){
Uri selectedImage = imageReturnedIntent.getData();
InputStream imageStream = null;
try {
imageStream = getContentResolver().openInputStream(selectedImage);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
Bitmap MyBitmap = BitmapFactory.decodeStream(imageStream);
iv_pic.setImageBitmap(MyBitmap);
TessBaseAPI baseApi = new TessBaseAPI();
// DATA_PATH = Path to the storage
// lang = for which the language data exists, usually "eng"
baseApi.init("mnt/sdcard/eng.traineddata", "eng");
// Eg. baseApi.init("/mnt/sdcard/tesseract/tessdata/eng.traineddata", "eng");
baseApi.setImage(MyBitmap);
String recognizedText = baseApi.getUTF8Text();
baseApi.end();
}
}
}
@Override
public void onClick(View v) {
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, SELECT_PHOTO);
}
}
这是错误日志:
Error:Execution failed for task ':tesstwo:compileReleaseNdk'.
> com.android.ide.common.internal.LoggedErrorException: Failed to run command:
/home/michal089/Documents/Android/NDK/android-ndk-r10d/ndk-build NDK_PROJECT_PATH=null APP_BUILD_SCRIPT=/home/michal089/AndroidStudioProjects/OCR_app/tesstwo/build/intermediates/ndk/release/Android.mk APP_PLATFORM=android-8 NDK_OUT=/home/michal089/AndroidStudioProjects/OCR_app/tesstwo/build/intermediates/ndk/release/obj NDK_LIBS_OUT=/home/michal089/AndroidStudioProjects/OCR_app/tesstwo/build/intermediates/ndk/release/lib APP_ABI=all
Error Code:
2
Output:
In file included from /home/michal089/AndroidStudioProjects/OCR_app/tesstwo/src/main/jni/com_googlecode_leptonica_android/writefile.cpp:17:0:
/home/michal089/AndroidStudioProjects/OCR_app/tesstwo/src/main/jni/com_googlecode_leptonica_android/common.h:22:24: fatal error: allheaders.h: No such file or directory
#include <allheaders.h>
^
compilation terminated.
make: *** [/home/michal089/AndroidStudioProjects/OCR_app/tesstwo/build/intermediates/ndk/release/obj/local/arm64-v8a/objs/tesstwo//home/michal089/AndroidStudioProjects/OCR_app/tesstwo/src/main/jni/com_googlecode_leptonica_android/writefile.o] Error 1
有什么问题?