Ready to implement

app/app.iml

@@ -122,6 +122,7 @@
     <orderEntry type="library" scope="TEST" name="runner-1.0.2" level="project" />
     <orderEntry type="library" scope="TEST" name="jsr305-2.0.1" level="project" />
     <orderEntry type="library" name="support-compat-26.1.0" level="project" />
+    <orderEntry type="library" name="tess-two-9.0.0" level="project" />
     <orderEntry type="library" scope="TEST" name="javax.inject-1" level="project" />
     <orderEntry type="library" name="support-annotations-26.1.0" level="project" />
     <orderEntry type="library" name="support-v4-26.1.0" level="project" />

app/build.gradle

@@ -30,4 +30,5 @@ dependencies {
 
     testCompile 'junit:junit:4.12'
     compile 'com.google.android.gms:play-services-vision:10.0.0+'
+    compile 'com.rmtheis:tess-two:9.0.0'
 }

app/src/main/java/com/bcepnez/gvreader/MainActivity.java

@@ -86,8 +86,6 @@ else if (item.getItemId() == R.id.btn_gallery){
     private void openGallery() {
         GalIntent = new Intent(Intent.ACTION_PICK,
                 MediaStore.Images.Media.INTERNAL_CONTENT_URI);
-//        startActivityForResult(Intent.createChooser(GalIntent,"Select Image from gallery"),2);
-        crop = false;
         startActivityForResult(GalIntent,RESULT_LOAD_IMAGE);
     }
 
@@ -113,11 +111,11 @@ private void RequestRuntimePermission() {
     int chk =0;
     @Override
     public void onActivityResult(int requestCode, int resultCode, Intent data) {
-        if (requestCode == CAMERA_REQUEST && resultCode == Activity.RESULT_OK){
+        if (requestCode == CAMERA_REQUEST && resultCode == Activity.RESULT_OK && !crop ){
             if (!crop){ CropImage(); }
             if (crop){ OCR(); }
         }
-        else if (requestCode == RESULT_LOAD_IMAGE && !crop && resultCode == Activity.RESULT_OK) {
+        else if (requestCode == RESULT_LOAD_IMAGE && resultCode == Activity.RESULT_OK  && !crop ) {
             if(data!= null && data.getData()!=null){
                 uri = data.getData();
                 try {
@@ -140,6 +138,9 @@ else if (requestCode == CROP && resultCode == RESULT_OK && !crop){
                     e.printStackTrace();
                 }
                 crop = true;
+//                OcrManager manager = new OcrManager();
+//                String str = manager.startRecognizer(bitmap);
+//                Toast.makeText(this,"*|*"+str+"*|*",Toast.LENGTH_SHORT).show();
                 OCR();
             }
         }
@@ -175,6 +176,7 @@ private void OCR() {
                     }
                 }
 
+
                 TextView textView = (TextView) findViewById(R.id.text1);
                 Frame imageFrame = new Frame.Builder().setBitmap(bitmap).build();
                 SparseArray<TextBlock> textBlocks = textRecognizer.detect(imageFrame);
@@ -195,6 +197,7 @@ private void OCR() {
                     else textView.setText("No data");
                 }
                 crop = false;
+                textRecognizer.release();
             }
 
     }
@@ -209,7 +212,7 @@ private void CropImage() {
             CropIntent.putExtra("scaleUpIfNeeded",true);
             CropIntent.putExtra("scaleDownIfNeeded",true);
             CropIntent.putExtra("data",true);
-            crop=true;
+            crop = true;
             Toast.makeText(this,"****"+chk+"****",Toast.LENGTH_SHORT).show();
             startActivityForResult(CropIntent,CROP);
         }

app/src/main/java/com/bcepnez/gvreader/MainApplication.java

@@ -0,0 +1,77 @@
+package com.bcepnez.gvreader;
+
+import android.app.Application;
+import android.content.res.AssetManager;
+import android.util.Log;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+/**
+ * Created by BenzRST on 15-Jun-18.
+ */
+
+public class MainApplication extends Application {
+
+    public static MainApplication instance = null;
+    String type = "eng.traineddata";
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        //start copy file here
+        instance = this;
+        copyTessDataForTextRecognizer();
+    }
+    private String tessDataPath(){
+        return MainApplication.instance.getExternalFilesDir(null)+ "/tessdata";
+    }
+    public String getTessDataParentDirectory(){
+        return MainApplication.instance.getExternalFilesDir(null).getAbsolutePath();
+    }
+
+
+    private void copyTessDataForTextRecognizer(){
+        Runnable run = new Runnable() {
+            @Override
+            public void run() {
+                AssetManager assetManager = MainApplication.instance.getAssets();
+                OutputStream outputStream = null;
+                try {
+                    Log.d("MainApplication", "CopyTessDataForTextRecognizer");
+                    InputStream in = assetManager.open(type);
+                    String tesspath = instance.tessDataPath();
+                    File tessFolder = new File(tesspath);
+                    if (!tessFolder.exists()) {
+                        tessFolder.mkdir();
+                    }
+                    String tessData = tesspath + "/" + type;
+                    File file = new File(tessData);
+                    if (!file.exists()) {
+                        outputStream = new FileOutputStream(tessData);
+                        byte[] buffer = new byte[1024];
+                        int read = in.read(buffer);
+                        while (read != -1) {
+                            outputStream.write(buffer, 0, read);
+                            read = in.read(buffer);
+                        }
+                        Log.d("MainApplication", "***Did finish copy tess file***");
+                    } else
+                        Log.d("MainApplication", "***tess file exist***");
+                } catch (Exception e){
+                    Log.d("MainApplication", "***couldn't finish copy \n Error : "+e.toString());
+                }finally {
+                    try {
+                        if (outputStream!=null){
+                            outputStream.close();
+                        }
+                    }catch (Exception exx){
+
+                    }
+                }
+            }
+        };
+        new Thread(run).start();
+    }
+}

app/src/main/java/com/bcepnez/gvreader/OcrManager.java

@@ -0,0 +1,28 @@
+package com.bcepnez.gvreader;
+import android.graphics.Bitmap;
+
+import com.googlecode.tesseract.android.TessBaseAPI;
+
+/**
+ * Created by BenzRST on 15-Jun-18.
+ */
+
+public class OcrManager {
+    TessBaseAPI baseAPI = null;
+    public void initAPI(){
+        baseAPI = new TessBaseAPI();
+
+        String dataPath = MainApplication.instance.getTessDataParentDirectory();
+        baseAPI.init(dataPath,"eng");
+//        first param = datapath to trained data,
+//        second = language code
+
+    }
+    public String startRecognizer(Bitmap bitmap){
+        if(baseAPI == null){
+            initAPI();
+        }
+        baseAPI.setImage(bitmap);
+        return baseAPI.getUTF8Text();
+    }
+}