/*
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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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@class ZXBitMatrix;
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/**
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* A somewhat generic detector that looks for a barcode-like rectangular region within an image.
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* It looks within a mostly white region of an image for a region of black and white, but mostly
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* black. It returns the four corners of the region, as best it can determine.
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*/
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@interface ZXMonochromeRectangleDetector : NSObject
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- (id)initWithImage:(ZXBitMatrix *)image;
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/**
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* Detects a rectangular region of black and white -- mostly black -- with a region of mostly
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* white, in an image.
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*
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* @return ZXResultPoint array describing the corners of the rectangular region. The first and
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* last points are opposed on the diagonal, as are the second and third. The first point will be
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* the topmost point and the last, the bottommost. The second point will be leftmost and the
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* 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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