Mercurial > hgrepos > Python2 > PyMuPDF
diff mupdf-source/thirdparty/zxing-cpp/core/src/GlobalHistogramBinarizer.h @ 3:2c135c81b16c
MERGE: upstream PyMuPDF 1.26.4 with MuPDF 1.26.7
| author | Franz Glasner <fzglas.hg@dom66.de> |
|---|---|
| date | Mon, 15 Sep 2025 11:44:09 +0200 |
| parents | b50eed0cc0ef |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mupdf-source/thirdparty/zxing-cpp/core/src/GlobalHistogramBinarizer.h Mon Sep 15 11:44:09 2025 +0200 @@ -0,0 +1,34 @@ +/* +* Copyright 2016 Nu-book Inc. +* Copyright 2016 ZXing authors +*/ +// SPDX-License-Identifier: Apache-2.0 + +#pragma once + +#include "BinaryBitmap.h" + +namespace ZXing { + +/** +* This Binarizer implementation uses the old ZXing global histogram approach. It is suitable +* for low-end mobile devices which don't have enough CPU or memory to use a local thresholding +* algorithm. However, because it picks a global black point, it cannot handle difficult shadows +* and gradients. +* +* Faster mobile devices and all desktop applications should probably use HybridBinarizer instead. +* +* @author dswitkin@google.com (Daniel Switkin) +* @author Sean Owen +*/ +class GlobalHistogramBinarizer : public BinaryBitmap +{ +public: + explicit GlobalHistogramBinarizer(const ImageView& buffer); + ~GlobalHistogramBinarizer() override; + + bool getPatternRow(int row, int rotation, PatternRow &res) const override; + std::shared_ptr<const BitMatrix> getBlackMatrix() const override; +}; + +} // ZXing
