iOS Question Live Edge Detection

[hanyelmehy]

any simliar solution (Live Edge Detection/DocumentScanner) for ios
like

[class] DocumentScanner based on Google ML Kit

This class allows using ML Kit to scan documents: https://developers.google.com/ml-kit/vision/doc-scanner It requires some configuration: 1. Main module: #AdditionalJar: com.google.android.gms:play-services-mlkit-document-scanner #AdditionalJar: kotlin-stdlib-1.6.10 #AdditionalJar...

www.b4x.com

LiveEdgeDetection

This is a shortcut wrap for this Github project. It will scan a "document" and bring back a bitmap of the scanned "document" to the B4A project via event xxx_scan_result. You need to download the 2 x jar, 1 x xml, and 1x aar from the following link and copy them to your additional library...

www.b4x.com

 

[hanyelmehy]

can we use something like

VNDocumentCameraViewController | Apple Developer Documentation

An object that presents UI for a camera pass-through that helps people scan physical documents.

developer.apple.com

@interface B4IDocumentScanner : NSObject <VNDocumentCameraViewControllerDelegate>
@property (nonatomic, weak) UIViewController *parentVC;
@property (nonatomic, copy) NSString *eventName;
@property (nonatomic, weak) NSObject *target;
@end

@implementation B4IDocumentScanner

+ (BOOL)isAvailable {
    if (@available(iOS 13.0, *)) {
        return [VNDocumentCameraViewController isSupported];
    }
    return NO;
}

- (void)startScanningWithController:(UIViewController*)vc eventName:(NSString*)event target:(NSObject*)tgt {
    if (@available(iOS 13.0, *)) {
        if (![VNDocumentCameraViewController isSupported]) {
            [self sendErrorEvent:@"Document scanner not supported on this device"];
            return;
        }
        
        self.parentVC = vc;
        self.eventName = event;
        self.target = tgt;
        
        VNDocumentCameraViewController *docCamera = [[VNDocumentCameraViewController alloc] init];
        docCamera.delegate = self;
        [vc presentViewController:docCamera animated:YES completion:nil];
    } else {
        [self sendErrorEvent:@"VisionKit requires iOS 13+"];
    }
}

- (void)documentCameraViewController:(VNDocumentCameraViewController *)controller
               didFinishWithScan:(VNDocumentCameraScan *)scan API_AVAILABLE(ios(13.0)) {
    NSMutableArray *images = [NSMutableArray array];
    for (NSInteger i = 0; i < scan.pageCount; i++) {
        [images addObject:[scan imageOfPageAtIndex:i]];
    }
    
    [controller dismissViewControllerAnimated:YES completion:^{
        [self sendSuccessEvent:images];
    }];
}

- (void)documentCameraViewControllerDidCancel:(VNDocumentCameraViewController *)controller API_AVAILABLE(ios(13.0)) {
    [controller dismissViewControllerAnimated:YES completion:^{
        [self sendCancelEvent];
    }];
}

- (void)documentCameraViewController:(VNDocumentCameraViewController *)controller
               didFailWithError:(NSError *)error API_AVAILABLE(ios(13.0)) {
    [controller dismissViewControllerAnimated:YES completion:^{
        [self sendErrorEvent:error.localizedDescription];
    }];
}

- (void)sendSuccessEvent:(NSArray*)images {
    if (self.target && self.eventName && [self.target respondsToSelector:NSSelectorFromString(self.eventName)]) {
        [self.target performSelector:NSSelectorFromString(self.eventName) withObject:images];
    }
}

- (void)sendCancelEvent {
    NSString *cancelEvent = [NSString stringWithFormat:@"%@_Cancel", self.eventName];
    if (self.target && [self.target respondsToSelector:NSSelectorFromString(cancelEvent)]) {
        [self.target performSelector:NSSelectorFromString(cancelEvent)];
    }
}

- (void)sendErrorEvent:(NSString*)error {
    NSString *errorEvent = [NSString stringWithFormat:@"%@_Error", self.eventName];
    if (self.target && [self.target respondsToSelector:NSSelectorFromString(errorEvent)]) {
        [self.target performSelector:NSSelectorFromString(errorEvent) withObject:error];
    }
}

@end

or something like

GitHub - WeTransferArchive/WeScan: Document Scanning Made Easy for iOS

Document Scanning Made Easy for iOS. Contribute to WeTransferArchive/WeScan development by creating an account on GitHub.

github.com