mirror of
https://github.com/opencv/opencv.git
synced 2025-06-13 04:52:53 +08:00
463cd09811
Moved barcode from opencv_contrib #23666 Merge with https://github.com/opencv/opencv_contrib/pull/3497 ##### TODO - [x] Documentation (bib) - [x] Tutorial (references) - [x] Sample app (refactored) - [x] Java (test passes) - [x] Python (test passes) - [x] Build without DNN
100 lines
2.4 KiB
C++
100 lines
2.4 KiB
C++
// This file is part of OpenCV project.
|
|
// It is subject to the license terms in the LICENSE file found in the top-level directory
|
|
// of this distribution and at http://opencv.org/license.html.
|
|
// Copyright (c) 2020-2021 darkliang wangberlinT Certseeds
|
|
|
|
#ifndef OPENCV_BARCODE_ABS_DECODER_HPP
|
|
#define OPENCV_BARCODE_ABS_DECODER_HPP
|
|
|
|
#include "opencv2/objdetect/barcode.hpp"
|
|
|
|
namespace cv {
|
|
namespace barcode {
|
|
using std::string;
|
|
using std::vector;
|
|
constexpr static uchar BLACK = std::numeric_limits<uchar>::min();
|
|
// WHITE elemental area is 0xff
|
|
constexpr static uchar WHITE = std::numeric_limits<uchar>::max();
|
|
|
|
|
|
struct Result
|
|
{
|
|
enum BarcodeType
|
|
{
|
|
BARCODE_NONE,
|
|
BARCODE_EAN_8,
|
|
BARCODE_EAN_13,
|
|
BARCODE_UPC_A,
|
|
BARCODE_UPC_E,
|
|
BARCODE_UPC_EAN_EXTENSION
|
|
};
|
|
|
|
std::string result;
|
|
BarcodeType format = Result::BARCODE_NONE;
|
|
|
|
Result() = default;
|
|
|
|
Result(const std::string &_result, BarcodeType _format)
|
|
{
|
|
result = _result;
|
|
format = _format;
|
|
}
|
|
string typeString() const
|
|
{
|
|
switch (format)
|
|
{
|
|
case Result::BARCODE_EAN_8: return "EAN_8";
|
|
case Result::BARCODE_EAN_13: return "EAN_13";
|
|
case Result::BARCODE_UPC_E: return "UPC_E";
|
|
case Result::BARCODE_UPC_A: return "UPC_A";
|
|
case Result::BARCODE_UPC_EAN_EXTENSION: return "UPC_EAN_EXTENSION";
|
|
default: return string();
|
|
}
|
|
}
|
|
bool isValid() const
|
|
{
|
|
return format != BARCODE_NONE;
|
|
}
|
|
};
|
|
|
|
struct Counter
|
|
{
|
|
std::vector<int> pattern;
|
|
uint sum;
|
|
|
|
explicit Counter(const vector<int> &_pattern)
|
|
{
|
|
pattern = _pattern;
|
|
sum = 0;
|
|
}
|
|
};
|
|
|
|
class AbsDecoder
|
|
{
|
|
public:
|
|
virtual std::pair<Result, float> decodeROI(const Mat &bar_img) const = 0;
|
|
|
|
virtual ~AbsDecoder() = default;
|
|
|
|
protected:
|
|
virtual Result decode(const vector<uchar> &data) const = 0;
|
|
|
|
virtual bool isValid(const string &result) const = 0;
|
|
|
|
size_t bits_num{};
|
|
size_t digit_number{};
|
|
};
|
|
|
|
void cropROI(const Mat &_src, Mat &_dst, const std::vector<Point2f> &rect);
|
|
|
|
void fillCounter(const std::vector<uchar> &row, uint start, Counter &counter);
|
|
|
|
constexpr static uint INTEGER_MATH_SHIFT = 8;
|
|
constexpr static uint PATTERN_MATCH_RESULT_SCALE_FACTOR = 1 << INTEGER_MATH_SHIFT;
|
|
|
|
uint patternMatch(const Counter &counters, const std::vector<int> &pattern, uint maxIndividual);
|
|
}
|
|
} // namespace cv
|
|
|
|
#endif // OPENCV_BARCODE_ABS_DECODER_HPP
|