41 lines
1.5 KiB
Objective-C
41 lines
1.5 KiB
Objective-C
/*
|
|
* Copyright 2012 ZXing authors
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
@class ZXBitMatrix;
|
|
|
|
/**
|
|
* A somewhat generic detector that looks for a barcode-like rectangular region within an image.
|
|
* It looks within a mostly white region of an image for a region of black and white, but mostly
|
|
* black. It returns the four corners of the region, as best it can determine.
|
|
*/
|
|
@interface ZXMonochromeRectangleDetector : NSObject
|
|
|
|
- (id)initWithImage:(ZXBitMatrix *)image;
|
|
|
|
/**
|
|
* Detects a rectangular region of black and white -- mostly black -- with a region of mostly
|
|
* white, in an image.
|
|
*
|
|
* @return ZXResultPoint array describing the corners of the rectangular region. The first and
|
|
* last points are opposed on the diagonal, as are the second and third. The first point will be
|
|
* the topmost point and the last, the bottommost. The second point will be leftmost and the
|
|
* third, the rightmost
|
|
* @return nil if no Data Matrix Code can be found
|
|
*/
|
|
- (NSArray *)detectWithError:(NSError **)error;
|
|
|
|
@end
|