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Merge pull request #402 from abankowski/java-interop

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Enhance interop with Java
This commit is contained in:
Matthew Hill
2016-09-27 22:17:49 -04:00
committed by GitHub
parent 5e99c125e2 d6cea3c43e
commit 285930b821
3 changed files with 39 additions and 0 deletions
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8
src/bindings/java/com_openalpr_jni_Alpr.h
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@@ -47,6 +47,14 @@ JNIEXPORT jstring JNICALL Java_com_openalpr_jni_Alpr_native_1recognize__Ljava_la
JNIEXPORT jstring JNICALL Java_com_openalpr_jni_Alpr_native_1recognize___3B JNIEXPORT jstring JNICALL Java_com_openalpr_jni_Alpr_native_1recognize___3B
(JNIEnv *, jobject, jbyteArray); (JNIEnv *, jobject, jbyteArray);
/*
* Class: com_openalpr_jni_Alpr
* Method: native_recognize
* Signature: (JIII)Ljava/lang/String;
*/
JNIEXPORT jstring JNICALL Java_com_openalpr_jni_Alpr_native_1recognize__JIII
(JNIEnv *, jobject, jlong, jint, jint, jint);
/* /*
* Class: com_openalpr_jni_Alpr * Class: com_openalpr_jni_Alpr
* Method: set_default_region * Method: set_default_region

18
src/bindings/java/openalprjni.cpp
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@@ -88,6 +88,24 @@ JNIEXPORT jstring JNICALL Java_com_openalpr_jni_Alpr_native_1recognize___3B
return env->NewStringUTF(json.c_str()); return env->NewStringUTF(json.c_str());
} }
JNIEXPORT jstring JNICALL Java_com_openalpr_jni_Alpr_native_1recognize__JIII
(JNIEnv *env, jobject thisObj, jlong data, jint bytesPerPixel, jint width, jint height)
{
//printf("Recognize data pointer");
AlprResults results = nativeAlpr->recognize(
reinterpret_cast<unsigned char*>(data),
static_cast<int>(bytesPerPixel),
static_cast<int>(width),
static_cast<int>(height),
std::vector<AlprRegionOfInterest>());
std::string json = Alpr::toJson(results);
return env->NewStringUTF(json.c_str());
}
JNIEXPORT void JNICALL Java_com_openalpr_jni_Alpr_set_1default_1region JNIEXPORT void JNICALL Java_com_openalpr_jni_Alpr_set_1default_1region
(JNIEnv *env, jobject thisObj, jstring jdefault_region) (JNIEnv *env, jobject thisObj, jstring jdefault_region)
{ {

13
src/bindings/java/src/com/openalpr/jni/Alpr.java
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@@ -15,6 +15,7 @@ public class Alpr {
private native boolean is_loaded(); private native boolean is_loaded();
private native String native_recognize(String imageFile); private native String native_recognize(String imageFile);
private native String native_recognize(byte[] imageBytes); private native String native_recognize(byte[] imageBytes);
private native String native_recognize(long imageData, int bytesPerPixel, int imgWidth, int imgHeight);
private native void set_default_region(String region); private native void set_default_region(String region);
private native void detect_region(boolean detectRegion); private native void detect_region(boolean detectRegion);
@@ -62,6 +63,18 @@ public class Alpr {
} }
public AlprResults recognize(long imageData, int bytesPerPixel, int imgWidth, int imgHeight) throws AlprException
{
try {
String json = native_recognize(imageData, bytesPerPixel, imgWidth, imgHeight);
return new AlprResults(json);
} catch (JSONException e)
{
throw new AlprException("Unable to parse ALPR results");
}
}
public void setTopN(int topN) public void setTopN(int topN)
{ {
set_top_n(topN); set_top_n(topN);