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我想使用ZBar庫(zbar.sourceforge.net)和opencv找到QR碼。Zbar沒有找到代碼
這裏是我的代碼:
string findIDIncircle(Mat img, double* angle)
{
ImageScanner scanner;
zbar_image_scanner_set_config(scanner, ZBAR_NONE, ZBAR_CFG_ENABLE, 1);
int width = img.cols;
int height = img.rows;
uchar *raw = (uchar *)img.data;
Image image(width, height, "Y800", raw, width * height);
scanner.scan(image);
SymbolSet symbols = image.get_symbols();
for(Image::SymbolIterator symbol = image.symbol_begin(); symbol != image.symbol_end(); symbol++)
{
string data = symbol->get_data();
vector<Point> vp;
int n = symbol->get_location_size();
for(int i=0;i<n;i++)
{
vp.push_back(Point(symbol->get_location_x(i),symbol->get_location_y(i)));
}
RotatedRect r = minAreaRect(vp);
*angle = r.angle;
return data;
}
return "";
}
但代碼沒有找到任何東西。我檢查了img上的imwrite參數,圖像是正確的,非常清晰(它是用http://www.qrcode-generator.de/生成的) 任何人都可以告訴我,問題在哪裏?