diff --git a/Example/android/app/build.gradle b/Example/android/app/build.gradle
index b6298e9..827aa14 100644
--- a/Example/android/app/build.gradle
+++ b/Example/android/app/build.gradle
@@ -133,6 +133,7 @@ android {
 }
 
 dependencies {
+    compile project(':react-native-document-scanner')
     compile project(':react-native-pdf-scanner')
     compile fileTree(dir: "libs", include: ["*.jar"])
     compile "com.android.support:appcompat-v7:23.0.1"
diff --git a/Example/android/app/src/main/java/com/example/MainApplication.java b/Example/android/app/src/main/java/com/example/MainApplication.java
index cc82cae..c320e29 100644
--- a/Example/android/app/src/main/java/com/example/MainApplication.java
+++ b/Example/android/app/src/main/java/com/example/MainApplication.java
@@ -4,6 +4,7 @@
 
 import com.facebook.react.ReactApplication;
 import com.reactlibrary.RNPdfScannerPackage;
+import com.reactlibrary.RNPdfScannerPackage;
 import com.facebook.react.ReactNativeHost;
 import com.facebook.react.ReactPackage;
 import com.facebook.react.shell.MainReactPackage;
@@ -24,6 +25,7 @@ public boolean getUseDeveloperSupport() {
     protected List<ReactPackage> getPackages() {
       return Arrays.<ReactPackage>asList(
           new MainReactPackage(),
+            new RNPdfScannerPackage(),
             new RNPdfScannerPackage()
       );
     }
diff --git a/Example/android/settings.gradle b/Example/android/settings.gradle
index 82e512a..f792bbc 100644
--- a/Example/android/settings.gradle
+++ b/Example/android/settings.gradle
@@ -1,4 +1,6 @@
 rootProject.name = 'Example'
+include ':react-native-document-scanner'
+project(':react-native-document-scanner').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-document-scanner/android')
 include ':react-native-pdf-scanner'
 project(':react-native-pdf-scanner').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-pdf-scanner/android')
 
diff --git a/Example/index.ios.js b/Example/index.ios.js
index 3d236d1..08725af 100644
--- a/Example/index.ios.js
+++ b/Example/index.ios.js
@@ -13,7 +13,7 @@ import {
   TouchableOpacity,
   View
 } from 'react-native';
-import PdfScanner from 'react-native-pdf-scanner';
+import Scanner from 'react-native-document-scanner';
 
 export default class Example extends Component {
   constructor(props) {
@@ -24,23 +24,42 @@ export default class Example extends Component {
     };
   }
 
+  renderDetectionType() {
+    switch (this.state.lastDetectionType) {
+      case 0:
+        return "Correct rectangle found"
+      case 1:
+        return "Bad angle found";
+      case 2:
+        return "Rectangle too far";
+      default:
+        return "No rectangle detected yet";
+    }
+  }
+
   render() {
     return (
       <View style={styles.container}>
         {this.state.image ?
           <Image style={{ flex: 1, width: 300, height: 200 }} source={{ uri: `data:image/png;base64,${this.state.image}`}} resizeMode="contain" /> :
-          <PdfScanner
+          <Scanner
             onPictureTaken={data => this.setState({ image: data.image })}
             overlayColor="rgba(255,130,0, 0.7)"
             enableTorch={this.state.flashEnabled}
-            brightness={0}
-            saturation={1}
-            contrast={1.1}
+            brightness={0.2}
+            saturation={0}
+            contrast={1.2}
+            onRectangleDetect={({ stableCounter, lastDetectionType }) => this.setState({ stableCounter, lastDetectionType })}
+            detectionCountBeforeCapture={10}
+            detectionRefreshRateInMS={50}
             style={styles.scanner}
           />
         }
         <Text style={styles.instructions}>
-          This is a great example of react-native-pdf-scanner 🤗
+          ({this.state.stableCounter || 0} correctly formated rectangle detected
+        </Text>
+        <Text style={styles.instructions}>
+          {this.renderDetectionType()}
         </Text>
         {this.state.image === null ?
           null :
diff --git a/Example/ios/Example.xcodeproj/project.pbxproj b/Example/ios/Example.xcodeproj/project.pbxproj
index efef4ba..25fa144 100644
--- a/Example/ios/Example.xcodeproj/project.pbxproj
+++ b/Example/ios/Example.xcodeproj/project.pbxproj
@@ -229,6 +229,13 @@
 			remoteGlobalIDString = 58B5119B1A9E6C1200147676;
 			remoteInfo = RCTText;
 		};
+		D2D661241F1F336E0008DBCE /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = D2D661051F1F336E0008DBCE /* RNPdfScanner.xcodeproj */;
+			proxyType = 2;
+			remoteGlobalIDString = 134814201AA4EA6300B7C361;
+			remoteInfo = RNPdfScanner;
+		};
 		D2EF802A1EFD1271008AB871 /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 146833FF1AC3E56700842450 /* React.xcodeproj */;
@@ -279,6 +286,7 @@
 		5E91572D1DD0AC6500FF2AA8 /* RCTAnimation.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = RCTAnimation.xcodeproj; path = "../node_modules/react-native/Libraries/NativeAnimation/RCTAnimation.xcodeproj"; sourceTree = "<group>"; };
 		78C398B01ACF4ADC00677621 /* RCTLinking.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = RCTLinking.xcodeproj; path = "../node_modules/react-native/Libraries/LinkingIOS/RCTLinking.xcodeproj"; sourceTree = "<group>"; };
 		832341B01AAA6A8300B99B32 /* RCTText.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = RCTText.xcodeproj; path = "../node_modules/react-native/Libraries/Text/RCTText.xcodeproj"; sourceTree = "<group>"; };
+		D2D661051F1F336E0008DBCE /* RNPdfScanner.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = RNPdfScanner.xcodeproj; path = ../../ios/RNPdfScanner.xcodeproj; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -463,6 +471,7 @@
 		832341AE1AAA6A7D00B99B32 /* Libraries */ = {
 			isa = PBXGroup;
 			children = (
+				D2D661051F1F336E0008DBCE /* RNPdfScanner.xcodeproj */,
 				5E91572D1DD0AC6500FF2AA8 /* RCTAnimation.xcodeproj */,
 				146833FF1AC3E56700842450 /* React.xcodeproj */,
 				00C302A71ABCB8CE00DB3ED1 /* RCTActionSheet.xcodeproj */,
@@ -511,6 +520,14 @@
 			name = Products;
 			sourceTree = "<group>";
 		};
+		D2D661061F1F336E0008DBCE /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				D2D661251F1F336E0008DBCE /* libRNPdfScanner.a */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
 		D2EF800D1EFD1271008AB871 /* Products */ = {
 			isa = PBXGroup;
 			children = (
@@ -680,6 +697,10 @@
 					ProductGroup = 146834001AC3E56700842450 /* Products */;
 					ProjectRef = 146833FF1AC3E56700842450 /* React.xcodeproj */;
 				},
+				{
+					ProductGroup = D2D661061F1F336E0008DBCE /* Products */;
+					ProjectRef = D2D661051F1F336E0008DBCE /* RNPdfScanner.xcodeproj */;
+				},
 				{
 					ProductGroup = D2EF800D1EFD1271008AB871 /* Products */;
 					ProjectRef = 29D3F134BEE343FFABB02DE4 /* RNPdfScanner.xcodeproj */;
@@ -871,6 +892,13 @@
 			remoteRef = 832341B41AAA6A8300B99B32 /* PBXContainerItemProxy */;
 			sourceTree = BUILT_PRODUCTS_DIR;
 		};
+		D2D661251F1F336E0008DBCE /* libRNPdfScanner.a */ = {
+			isa = PBXReferenceProxy;
+			fileType = archive.ar;
+			path = libRNPdfScanner.a;
+			remoteRef = D2D661241F1F336E0008DBCE /* PBXContainerItemProxy */;
+			sourceTree = BUILT_PRODUCTS_DIR;
+		};
 		D2EF802B1EFD1271008AB871 /* libthird-party.a */ = {
 			isa = PBXReferenceProxy;
 			fileType = archive.ar;
diff --git a/Example/ios/Example.xcodeproj/xcshareddata/xcschemes/Example.xcscheme b/Example/ios/Example.xcodeproj/xcshareddata/xcschemes/Example.xcscheme
index 273f724..8610f44 100644
--- a/Example/ios/Example.xcodeproj/xcshareddata/xcschemes/Example.xcscheme
+++ b/Example/ios/Example.xcodeproj/xcshareddata/xcschemes/Example.xcscheme
@@ -80,7 +80,7 @@
       </AdditionalOptions>
    </TestAction>
    <LaunchAction
-      buildConfiguration = "Debug"
+      buildConfiguration = "Release"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       launchStyle = "0"
diff --git a/Example/package.json b/Example/package.json
index 394dc04..9bf0833 100644
--- a/Example/package.json
+++ b/Example/package.json
@@ -9,7 +9,7 @@
 	"dependencies": {
 		"react": "16.0.0-alpha.12",
 		"react-native": "0.45.1",
-    "react-native-pdf-scanner": "file:../"
+    "react-native-document-scanner": "file:../"
 	},
 	"devDependencies": {
 		"babel-jest": "20.0.3",
diff --git a/index.js b/index.js
index 70b8ee3..10c31de 100644
--- a/index.js
+++ b/index.js
@@ -5,17 +5,27 @@ import PropTypes from 'prop-types';
 const RNPdfScanner = requireNativeComponent('RNPdfScanner', PdfScanner);
 
 class PdfScanner extends React.Component {
+
   sendOnPictureTakenEvent(event) {
     return this.props.onPictureTaken(event.nativeEvent);
   }
+
+  sendOnRectanleDetectEvent(event) {
+    if (!this.props.onRectangleDetect) return null;
+    return this.props.onRectangleDetect(event.nativeEvent);
+  }
+
   render() {
     return (
       <RNPdfScanner
         {...this.props}
         onPictureTaken={this.sendOnPictureTakenEvent.bind(this)}
+        onRectangleDetect={this.sendOnRectanleDetectEvent.bind(this)}
         brightness={this.props.brightness||0}
-        saturation={this.props.saturation||1}
+        saturation={typeof this.props.saturation === 'undefined' ? 1 : this.props.saturation}
         contrast={this.props.contrast||1}
+        detectionCountBeforeCapture={this.props.detectionCountBeforeCapture||5}
+        detectionRefreshRateInMS={this.props.detectionRefreshRateInMS||50}
       />
     );
   }
@@ -23,11 +33,14 @@ class PdfScanner extends React.Component {
 
 PdfScanner.propTypes = {
   onPictureTaken: PropTypes.func,
+  onRectangleDetect: PropTypes.func,
   overlayColor: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
   enableTorch: PropTypes.bool,
   saturation: PropTypes.number,
   brightness: PropTypes.number,
   contrast: PropTypes.number,
+  detectionCountBeforeCapture: PropTypes.number,
+  detectionRefreshRateInMS: PropTypes.number,
 };
 
 export default PdfScanner;
diff --git a/ios/DocumentScannerView.h b/ios/DocumentScannerView.h
index c0f2ed2..94d8f43 100644
--- a/ios/DocumentScannerView.h
+++ b/ios/DocumentScannerView.h
@@ -12,7 +12,9 @@
 @interface DocumentScannerView : IPDFCameraViewController <IPDFCameraViewControllerDelegate>
 
 @property (nonatomic, copy) RCTBubblingEventBlock onPictureTaken;
-
+@property (nonatomic, copy) RCTBubblingEventBlock onRectangleDetect;
+@property (nonatomic, assign) NSInteger detectionCountBeforeCapture;
+@property (assign, nonatomic) NSInteger stableCounter;
 
 
 @end
diff --git a/ios/DocumentScannerView.m b/ios/DocumentScannerView.m
index d0ae8a6..2cbe7e8 100644
--- a/ios/DocumentScannerView.m
+++ b/ios/DocumentScannerView.m
@@ -9,11 +9,6 @@
 #import "DocumentScannerView.h"
 #import "IPDFCameraViewController.h"
 
-@interface DocumentScannerView()
-@property (assign, nonatomic) NSInteger stableCounter;
-@end
-
-
 @implementation DocumentScannerView
 
 - (instancetype)init {
@@ -29,9 +24,12 @@ - (instancetype)init {
         [self setContrast: self.contrast];
         [self setBrightness: self.brightness];
         [self setSaturation: self.saturation];
-
-        [self setDelegate: self];
+        
+        NSLog(@"detectionCountBeforeCapture:  %ld", (long)self.detectionCountBeforeCapture);
+        NSLog(@"detectionRefreshRateInMS:  %ld", (long)self.detectionRefreshRateInMS);
+        
         [self start];
+        [self setDelegate: self];
     }
 
     return self;
@@ -47,7 +45,11 @@ - (void) didDetectRectangle:(CIRectangleFeature *)rectangle withType:(IPDFRectan
             self.stableCounter = 0;
             break;
     }
-    if (self.stableCounter > 5){
+    if (self.onRectangleDetect) {
+        self.onRectangleDetect(@{@"stableCounter": @(self.stableCounter), @"lastDetectionType": @(type)});
+    }
+    
+    if (self.stableCounter > self.detectionCountBeforeCapture){
         [self captureImageWithCompletionHander:^(id data) {
            if (self.onPictureTaken) {
                NSData *imageData = UIImagePNGRepresentation(data);
diff --git a/ios/IPDFCameraViewController.h b/ios/IPDFCameraViewController.h
index 6d3400d..2ef3529 100644
--- a/ios/IPDFCameraViewController.h
+++ b/ios/IPDFCameraViewController.h
@@ -49,6 +49,7 @@ typedef NS_ENUM(NSInteger, IPDFRectangeType)
 @property (nonatomic, assign) float saturation;
 @property (nonatomic, assign) float contrast;
 @property (nonatomic, assign) float brightness;
+@property (nonatomic, assign) NSInteger detectionRefreshRateInMS;
 
 
 @end
diff --git a/ios/IPDFCameraViewController.m b/ios/IPDFCameraViewController.m
index 67fdfb3..66352e5 100644
--- a/ios/IPDFCameraViewController.m
+++ b/ios/IPDFCameraViewController.m
@@ -24,6 +24,7 @@ @interface IPDFCameraViewController () <AVCaptureVideoDataOutputSampleBufferDele
 @property (nonatomic, strong) AVCaptureStillImageOutput* stillImageOutput;
 
 @property (nonatomic, assign) BOOL forceStop;
+@property (nonatomic, assign) float lastDetectionRate;
 
 @end
 
@@ -218,9 +219,19 @@ - (void)start
     
     [self.captureSession startRunning];
     
-    _borderDetectTimeKeeper = [NSTimer scheduledTimerWithTimeInterval:0.2 target:self selector:@selector(enableBorderDetectFrame) userInfo:nil repeats:YES];
+    float detectionRefreshRate = _detectionRefreshRateInMS;
+    CGFloat detectionRefreshRateInSec = detectionRefreshRate/100;
+    
+    if (_lastDetectionRate != _detectionRefreshRateInMS) {
+        if (_borderDetectTimeKeeper) {
+            [_borderDetectTimeKeeper invalidate];
+        }
+        _borderDetectTimeKeeper = [NSTimer scheduledTimerWithTimeInterval:detectionRefreshRateInSec target:self selector:@selector(enableBorderDetectFrame) userInfo:nil repeats:YES];
+    }
     
     [self hideGLKView:NO completion:nil];
+    
+    _lastDetectionRate = _detectionRefreshRateInMS;
 }
 
 - (void)stop
@@ -271,6 +282,11 @@ - (void)setBrightness:(float)brightness
     _brightness = brightness;
 }
 
+- (void)setDetectionRefreshRateInMS:(NSInteger)detectionRefreshRateInMS
+{
+    _detectionRefreshRateInMS = detectionRefreshRateInMS;
+    NSLog(@"lol : %ld", (long)_detectionRefreshRateInMS);
+}
 
 
 - (void)focusAtPoint:(CGPoint)point completionHandler:(void(^)())completionHandler
@@ -397,6 +413,7 @@ - (void)hideGLKView:(BOOL)hidden completion:(void(^)())completion
 
 - (CIImage *)filteredImageUsingEnhanceFilterOnImage:(CIImage *)image
 {
+    [self start];
     return [CIFilter filterWithName:@"CIColorControls" keysAndValues:kCIInputImageKey, image, @"inputBrightness", @(self.brightness), @"inputContrast", @(self.contrast), @"inputSaturation", @(self.saturation), nil].outputImage;
 }
 
diff --git a/ios/RNPdfScannerManager.m b/ios/RNPdfScannerManager.m
index 5573d63..d734c48 100644
--- a/ios/RNPdfScannerManager.m
+++ b/ios/RNPdfScannerManager.m
@@ -11,8 +11,13 @@ - (dispatch_queue_t)methodQueue
 RCT_EXPORT_MODULE()
 
 RCT_EXPORT_VIEW_PROPERTY(onPictureTaken, RCTBubblingEventBlock)
+RCT_EXPORT_VIEW_PROPERTY(onRectangleDetect, RCTBubblingEventBlock)
+
+
 RCT_EXPORT_VIEW_PROPERTY(overlayColor, UIColor)
 RCT_EXPORT_VIEW_PROPERTY(enableTorch, BOOL)
+RCT_EXPORT_VIEW_PROPERTY(detectionCountBeforeCapture, NSInteger)
+RCT_EXPORT_VIEW_PROPERTY(detectionRefreshRateInMS, NSInteger)
 RCT_EXPORT_VIEW_PROPERTY(saturation, float)
 RCT_EXPORT_VIEW_PROPERTY(brightness, float)
 RCT_EXPORT_VIEW_PROPERTY(contrast, float)