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- /*
- * 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.
- */
-
- #import "ZXGlobalHistogramBinarizer.h"
-
- @class ZXBinarizer, ZXBitMatrix, ZXLuminanceSource;
-
- /**
- * This class implements a local thresholding algorithm, which while slower than the
- * ZXGlobalHistogramBinarizer, is fairly efficient for what it does. It is designed for
- * high frequency images of barcodes with black data on white backgrounds. For this application,
- * it does a much better job than a global blackpoint with severe shadows and gradients.
- * However it tends to produce artifacts on lower frequency images and is therefore not
- * a good general purpose binarizer for uses outside ZXing.
- *
- * This class extends ZXGlobalHistogramBinarizer, using the older histogram approach for 1D readers,
- * and the newer local approach for 2D readers. 1D decoding using a per-row histogram is already
- * inherently local, and only fails for horizontal gradients. We can revisit that problem later,
- * but for now it was not a win to use local blocks for 1D.
- *
- * This Binarizer is the default for the unit tests and the recommended class for library users.
- */
- @interface ZXHybridBinarizer : ZXGlobalHistogramBinarizer
-
- @end
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