FIRVisionTextBlock
@interface FIRVisionTextBlock : NSObject
A text block recognized in an image that consists of an array of text lines.
-
String representation of the text block that was recognized.
Declaration
Objective-C
@property (nonatomic, readonly) NSString *_Nonnull text;
-
An array of text lines that make up the block.
Declaration
Objective-C
@property (nonatomic, readonly) NSArray<FIRVisionTextLine *> *_Nonnull lines;
-
The rectangle that contains the text block relative to the image in the default coordinate space.
Declaration
Objective-C
@property (nonatomic, readonly) CGRect frame;
-
An array of recognized languages in the text block. On-device text recognizers only detect Latin-based languages, while cloud text recognizers can detect multiple languages. If no languages are recognized, the array is empty.
Declaration
Objective-C
@property (nonatomic, readonly) NSArray<FIRVisionTextRecognizedLanguage *> *_Nonnull recognizedLanguages;
-
The four corner points of the text block in clockwise order starting with the top left point relative to the image in the default coordinate space. The
NSValue
objects areCGPoint
s. For cloud text recognizers, the array isnil
.Declaration
Objective-C
@property (nonatomic, readonly, nullable) NSArray<NSValue *> *cornerPoints;
-
The confidence of the recognized text block. The value is
nil
for all text recognizers except for cloud text recognizers with model typeVisionCloudTextModelType.dense
.Declaration
Objective-C
@property (nonatomic, readonly, nullable) NSNumber *confidence;
-
Unavailable.
Declaration
Objective-C
- (nonnull instancetype)init;