46 lines
1.8 KiB
Objective-C
46 lines
1.8 KiB
Objective-C
/*
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* Copyright 2012 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "ZXResultPoint.h"
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#import "ZXBitMatrix.h"
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/**
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* Detects a candidate barcode-like rectangular region within an image. It
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* starts around the center of the image, increases the size of the candidate
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* region until it finds a white rectangular region. By keeping track of the
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* last black points it encountered, it determines the corners of the barcode.
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*/
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@interface ZXWhiteRectangleDetector : NSObject
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- (id)initWithImage:(ZXBitMatrix *)image error:(NSError **)error;
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- (id)initWithImage:(ZXBitMatrix *)image initSize:(int)initSize x:(int)x y:(int)y error:(NSError **)error;
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/**
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* Detects a candidate barcode-like rectangular region within an image. It
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* starts around the center of the image, increases the size of the candidate
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* region until it finds a white rectangular region.
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*
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* @return {@link ResultPoint}[] describing the corners of the rectangular
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* region. The first and last points are opposed on the diagonal, as
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* are the second and third. The first point will be the topmost
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* point and the last, the bottommost. The second point will be
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* leftmost and the third, the rightmost
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* @return nil if no Data Matrix Code can be found
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*/
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- (NSArray *)detectWithError:(NSError **)error;
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@end
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