Update Android Demo

Prj-Android/app/src/main/java/com/hyperai/hyperlpr_sdk_demo/CameraPreviews.java

@@ -1,8 +1,6 @@
 package com.hyperai.hyperlpr_sdk_demo;
 
 import android.content.Context;
-import android.graphics.Bitmap;
-import android.graphics.Matrix;
 import android.graphics.Paint;
 import android.hardware.Camera;
 import android.os.Handler;
@@ -20,11 +18,10 @@ import android.view.WindowManager;
 import org.greenrobot.eventbus.EventBus;
 
 import java.io.IOException;
-import java.util.ArrayList;
 import java.util.List;
 
 import com.hyperai.hyperlpr3.HyperLPR3;
-import com.hyperai.hyperlpr3.bean.Parameter;
+import com.hyperai.hyperlpr3.bean.HyperLPRParameter;
 import com.hyperai.hyperlpr3.bean.Plate;
 
 /**
@@ -45,8 +42,6 @@ public class CameraPreviews extends SurfaceView implements SurfaceHolder.Callbac
 
     private Context mContext;
 
-    HyperLPR3 hyperLPR3;
-
     public CameraPreviews(Context context) {
         super(context);
         mContext = context;
@@ -57,8 +52,9 @@ public class CameraPreviews extends SurfaceView implements SurfaceHolder.Callbac
         mPaint.setStyle(Paint.Style.STROKE);
 //        mPaint.setColor(ContextCompat.getColor(context, R.color.colorAccent));
 
-        Parameter parameter = new Parameter();
+        HyperLPRParameter parameter = new HyperLPRParameter();
-        hyperLPR3 = new HyperLPR3(mContext, parameter);
+//        hyperLPR3 = new HyperLPR3();
+//        hyperLPR3.init(mContext, parameter);
     }
     public Camera getCameraInstance(){
         if (mCamera == null){
@@ -135,16 +131,12 @@ public class CameraPreviews extends SurfaceView implements SurfaceHolder.Callbac
         synchronized (lock){
             // 处理data
             Camera.Size previewSize = camera.getParameters().getPreviewSize();
-
+            Plate[] plates = HyperLPR3.getInstance().plateRecognition(data, previewSize.height, previewSize.width, HyperLPR3.CAMERA_ROTATION_270, HyperLPR3.STREAM_YUV_NV21);
-//            String save_path = mContext.getExternalFilesDir(null).getAbsolutePath() + "/" + "a.jpg";
-//            core.testBuffer(save_path, data, previewSize.height, previewSize.width, 3);
-            Plate[] plates = hyperLPR3.plateRecognition(data, previewSize.height, previewSize.width, HyperLPR3.CAMERA_ROTATION_270, HyperLPR3.STREAM_YUV_NV21);
             for (Plate plate : plates) {
                 Log.i(TAG,  "" + plate.toString());
             }
 
             if(!isStopReg && plates.length > 0) {
-
 //                isStopReg = true;
                 sendPlate(plates);
             }

Prj-Android/app/src/main/java/com/hyperai/hyperlpr_sdk_demo/MainActivity.java

@@ -19,7 +19,7 @@ import android.widget.TextView;
 
 import com.bumptech.glide.Glide;
 import com.hyperai.hyperlpr3.HyperLPR3;
-import com.hyperai.hyperlpr3.bean.Parameter;
+import com.hyperai.hyperlpr3.bean.HyperLPRParameter;
 import com.hyperai.hyperlpr3.bean.Plate;
 import com.yuyh.library.imgsel.ISNav;
 import com.yuyh.library.imgsel.common.ImageLoader;
@@ -42,8 +42,6 @@ public class MainActivity extends AppCompatActivity {
 
     private TextView mResult;
 
-    HyperLPR3 hyperLPR3;
-
 
     private static final int REQUEST_EXTERNAL_STORAGE = 1;
     private static final String[] PERMISSIONS_STORAGE = {
@@ -81,8 +79,13 @@ public class MainActivity extends AppCompatActivity {
         verifyStoragePermissions(this);
 
 
-        Parameter parameter = new Parameter();
+        // 车牌识别算法配置参数
-        hyperLPR3 = new HyperLPR3(mCtx, parameter);
+        HyperLPRParameter parameter = new HyperLPRParameter()
+                .setDetLevel(HyperLPR3.DETECT_LEVEL_LOW)
+                .setMaxNum(1)
+                .setRecConfidenceThreshold(0.85f);
+        // 初始化(仅执行一次生效)
+        HyperLPR3.getInstance().init(this, parameter);
 
         ISNav.getInstance().init(new ImageLoader() {
             @Override
@@ -158,7 +161,7 @@ public class MainActivity extends AppCompatActivity {
         if (bitmap != null) {
 
             imageView.setImageBitmap(bitmap);
-            Plate[] plates = hyperLPR3.plateRecognition(bitmap, HyperLPR3.CAMERA_ROTATION_0, HyperLPR3.STREAM_BGRA);
+            Plate[] plates =  HyperLPR3.getInstance().plateRecognition(bitmap, HyperLPR3.CAMERA_ROTATION_0, HyperLPR3.STREAM_BGRA);
             for (Plate plate: plates) {
                 String type = "未知车牌";
                 if (plate.getType() != HyperLPR3.PLATE_TYPE_UNKNOWN) {

Prj-Android/hyperlpr3/src/main/java/com/hyperai/hyperlpr3/HyperLPR3.java

@@ -5,7 +5,7 @@ import android.graphics.Bitmap;
 import android.util.Log;
 
 import com.hyperai.hyperlpr3.api.APIDefine;
-import com.hyperai.hyperlpr3.bean.Parameter;
+import com.hyperai.hyperlpr3.bean.HyperLPRParameter;
 import com.hyperai.hyperlpr3.bean.Plate;
 import com.hyperai.hyperlpr3.core.HyperLPRCore;
 import com.hyperai.hyperlpr3.settings.TypeDefine;
@@ -14,28 +14,26 @@ import com.hyperai.hyperlpr3.utils.SDKUtils;
 
 public class HyperLPR3 extends TypeDefine implements APIDefine {
 
-    private final String TAG = "HyperLPR3";
+    private final String TAG = "HyperLPR3-SDK";
 
     private final HyperLPRCore mCore;
 
-    private final Context mContext;
+    private boolean isInitSuccess;
 
-    public HyperLPR3(Context mContext, Parameter parameter) {
+    private HyperLPR3() {
-        this.mContext = mContext;
-        String mResourceFolderPath = mContext.getExternalFilesDir(null).getAbsolutePath() + "/";
-        SDKUtils.copyFilesFromAssets(mContext, SDKConfig.packDirName, mResourceFolderPath);
-        Log.i(TAG, "resource: " + mResourceFolderPath);
-        if (parameter.getModelPath() == null || "".equals(parameter.getModelPath())) {
-            parameter.setModelPath(mResourceFolderPath);
-        }
         mCore = new HyperLPRCore();
-        mCore.createRecognizerContext(parameter);
+        isInitSuccess = false;
+    }
+
+    private static class LazyHolder {
+        private static final HyperLPR3 INSTANCE = new HyperLPR3();
     }
 
-    public Context getContext() {
+    public static final HyperLPR3 getInstance() {
-        return mContext;
+        return LazyHolder.INSTANCE;
     }
 
+
     public void release() {
         mCore.release();
     }
@@ -46,6 +44,26 @@ public class HyperLPR3 extends TypeDefine implements APIDefine {
         release();
     }
 
+    /**
+     * Initialize the license plate recognition algorithm SDK
+     *
+     * @param context   context
+     * @param parameter Initialization parameter
+     */
+    @Override
+    public void init(Context context, HyperLPRParameter parameter) {
+        if (!isInitSuccess) {
+            String mResourceFolderPath = context.getExternalFilesDir(null).getAbsolutePath() + "/";
+            SDKUtils.copyFilesFromAssets(context, SDKConfig.packDirName, mResourceFolderPath);
+            Log.i(TAG, "resource: " + mResourceFolderPath);
+            if (parameter.getModelPath() == null || "".equals(parameter.getModelPath())) {
+                parameter.setModelPath(mResourceFolderPath);
+            }
+            mCore.createRecognizerContext(parameter);
+            isInitSuccess = true;
+        }
+    }
+
     /**
      * License plate recognition interface.
      *
@@ -58,6 +76,10 @@ public class HyperLPR3 extends TypeDefine implements APIDefine {
      */
     @Override
     public Plate[] plateRecognition(byte[] buf, int height, int width, int rotation, int format) {
+        if (!isInitSuccess) {
+            Log.e(TAG, "HyperLPR3 is uninitialized.");
+            return new Plate[0];
+        }
         return mCore.plateRecognitionFromBuffer(buf, height, width, rotation, format);
     }
 
@@ -71,6 +93,10 @@ public class HyperLPR3 extends TypeDefine implements APIDefine {
      */
     @Override
     public Plate[] plateRecognition(Bitmap image, int rotation, int format) {
+        if (!isInitSuccess) {
+            Log.e(TAG, "HyperLPR3 is uninitialized.");
+            return new Plate[0];
+        }
         int mWidth = image.getWidth();
         int mHeight = image.getHeight();
         int[] data = new int[image.getWidth() * image.getHeight()];

Prj-Android/hyperlpr3/src/main/java/com/hyperai/hyperlpr3/api/APIDefine.java

@@ -1,13 +1,24 @@
 package com.hyperai.hyperlpr3.api;
 
+import android.content.Context;
 import android.graphics.Bitmap;
 
+import com.hyperai.hyperlpr3.bean.HyperLPRParameter;
 import com.hyperai.hyperlpr3.bean.Plate;
 
 public interface APIDefine {
 
+    /**
+     * Initialize the license plate recognition algorithm SDK
+     *
+     * @param context context
+     * @param parameter Initialization parameter
+     * */
+    void init(Context context, HyperLPRParameter parameter);
+
     /**
      * License plate recognition interface.
+     *
      * @param buf Image data buffer.
      * @param height Height of the image
      * @param width Width of the image
@@ -19,6 +30,7 @@ public interface APIDefine {
 
     /**
      * License plate recognition interface.
+     *
      * @param image Bitmap image
      * @param rotation Original data buffer rotation Angle
      * @param format Buffer data coded format

Prj-Android/hyperlpr3/src/main/java/com/hyperai/hyperlpr3/bean/HyperLPRParameter.java

@@ -2,7 +2,7 @@ package com.hyperai.hyperlpr3.bean;
 
 import com.hyperai.hyperlpr3.settings.TypeDefine;
 
-public class Parameter {
+public class HyperLPRParameter {
 
     private String modelPath;
 
@@ -14,76 +14,86 @@ public class Parameter {
 
     private float nmsThreshold = 0.6f;
 
-    private float recConfidenceThreshold = 0.75f;
+    private float recConfidenceThreshold = 0.85f;
 
     private int detLevel = TypeDefine.DETECT_LEVEL_LOW;
 
     private int maxNum = 3;
 
-    public Parameter() {
+    public HyperLPRParameter() {
     }
 
     public int getMaxNum() {
         return maxNum;
     }
 
-    public void setMaxNum(int maxNum) {
+    public HyperLPRParameter setMaxNum(int maxNum) {
         this.maxNum = maxNum;
+        return this;
     }
 
     public String getModelPath() {
         return modelPath;
     }
 
-    public void setModelPath(String modelPath) {
+    public HyperLPRParameter setModelPath(String modelPath) {
         this.modelPath = modelPath;
+        return this;
     }
 
     public int getThreads() {
         return threads;
     }
 
-    public void setThreads(int threads) {
+    public HyperLPRParameter setThreads(int threads) {
         this.threads = threads;
+        return this;
     }
 
     public boolean isUseHalf() {
         return useHalf;
     }
 
-    public void setUseHalf(boolean useHalf) {
+    public HyperLPRParameter setUseHalf(boolean useHalf) {
         this.useHalf = useHalf;
+        return this;
     }
 
     public float getBoxConfThreshold() {
         return boxConfThreshold;
     }
 
-    public void setBoxConfThreshold(float boxConfThreshold) {
+    public HyperLPRParameter setBoxConfThreshold(float boxConfThreshold) {
         this.boxConfThreshold = boxConfThreshold;
+        return this;
     }
 
     public float getNmsThreshold() {
         return nmsThreshold;
     }
 
-    public void setNmsThreshold(float nmsThreshold) {
+    public HyperLPRParameter setNmsThreshold(float nmsThreshold) {
         this.nmsThreshold = nmsThreshold;
+        return this;
     }
 
     public float getRecConfidenceThreshold() {
         return recConfidenceThreshold;
     }
 
-    public void setRecConfidenceThreshold(float recConfidenceThreshold) {
+    public HyperLPRParameter setRecConfidenceThreshold(float recConfidenceThreshold) {
         this.recConfidenceThreshold = recConfidenceThreshold;
+        return this;
     }
 
     public int getDetLevel() {
         return detLevel;
     }
 
-    public void setDetLevel(int detLevel) {
+    public HyperLPRParameter setDetLevel(int detLevel) {
         this.detLevel = detLevel;
+        return this;
     }
+
+
 }

Prj-Android/hyperlpr3/src/main/java/com/hyperai/hyperlpr3/core/HyperLPRCore.java

@@ -2,7 +2,7 @@ package com.hyperai.hyperlpr3.core;
 
 import android.util.Log;
 
-import com.hyperai.hyperlpr3.bean.Parameter;
+import com.hyperai.hyperlpr3.bean.HyperLPRParameter;
 import com.hyperai.hyperlpr3.bean.Plate;
 
 public class HyperLPRCore {
@@ -17,11 +17,7 @@ public class HyperLPRCore {
 
     private boolean isRunning_;
 
-//    public void testBuffer(String savePath, byte[] buf, int height, int width, int rotation) {
+    public void createRecognizerContext(HyperLPRParameter parameter) {
-//        TestBuffer(savePath, buf, height, width, rotation);
-//    }
-
-    public void createRecognizerContext(Parameter parameter) {
         ctxHandle_ = CreateRecognizerContext(parameter);
         Log.i(TAG, "HANDLE: " + ctxHandle_);
         isRunning_ = true;
@@ -49,7 +45,7 @@ public class HyperLPRCore {
 
 //    native void TestBuffer(String savePath, byte[] buf, int height, int width, int rotation);
 
-    native long CreateRecognizerContext(Parameter parameterObj);
+    native long CreateRecognizerContext(HyperLPRParameter parameterObj);
 
     native int ReleaseRecognizerContext(long handle);
 

cpp/src/version.h

@@ -0,0 +1,6 @@
+
+#pragma once
+
+#define HYPERLPR_VER_MAJOR 3
+#define HYPERLPR_VER_MINOR 0
+#define HYPERLPR_VER_PATCH 1