Method findBoundingBox

czxing/src/main/cpp/zxing/src/BitMatrix.cpp:72–95

}

bool
BitMatrix::findBoundingBox(int &left, int& top, int& width, int& height, int minSize) const
{
	int right, bottom;
	if (!getTopLeftOnBit(left, top) || !getBottomRightOnBit(right, bottom) || bottom - top + 1 < minSize)
		return false;

	for (int y = top; y <= bottom; y++ ) {
		for (int x = 0; x < left; ++x)
			if (get(x, y)) {
				left = x;
				break;
			}
		for (int x = _width-1; x > right; x--)
			if (get(x, y)) {
				right = x;
				break;
			}
	}

	width = right - left + 1;
	height = bottom - top + 1;
	return width >= minSize && height >= minSize;
}

static auto isSet = [](auto v) { return bool(v); };