Reading a Grid of QR Codes

This code snippet shows how to read QRcodes that are disposed in a 5 by 3 grid with 10% overlap between grid cells.

C++

#include <eVision/EasyQRCode/EQRCodeReader.h>

using namespace eVision;
EImageBW8 srcImage;
ERectangleRegion gridRegion;
EQRCodeReader reader;

// Reading succeeds
EQRCodeGrid grid = reader.Read(srcImage, gridRegion, 3, 5, 0.1f);

std::vector<EQRCode> codesMiddleCell = grid.GetResults(1, 2);

See also

EQRCodeReader::Read ^{.NET Python}, EQRCodeGrid ^{.NET Python}

C#

using eVision;

EImageBW8 srcImage = new EImageBW8();
ERectangleRegion gridRegion = new ERectangleRegion();
EQRCodeReader reader = new EQRCodeReader();

// Reading succeeds
EQRCodeGrid grid = reader.Read(srcImage, gridRegion, 3, 5, 0.1f);

EQRCode[] codesMiddleCell = grid.GetResults(1, 2);

See also

EQRCodeReader.Read ^{C++ Python}, EQRCodeGrid ^{C++ Python}

Python

import eVision
src_image = eVision.EImageBW8()
grid_region = eVision.ERectangleRegion()
reader = eVision.EQRCodeReader()

# Reading succeeds
grid = reader.Read(src_image, grid_region, 3, 5, 0.1)

codes_middle_cell = grid.GetResults(1, 2)

See also

EQRCodeReader.Read ^{C++ .NET}, EQRCodeGrid ^{C++ .NET}