From c41768dbbd50a0055298d5ec6318ae7f1d2e4ab3 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Sun, 11 Sep 2022 01:39:29 -0400
Subject: New testdrive using sqlite db as data storage.

Add signature serialization & deserialization.
Only link what we need from OpenCV.
---
 signature.hpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'signature.hpp')

diff --git a/signature.hpp b/signature.hpp
index 4e8c10f..ba342fa 100644
--- a/signature.hpp
+++ b/signature.hpp
@@ -5,6 +5,7 @@
 
 #include <memory>
 #include <filesystem>
+#include <string>
 
 struct signature_config
 {
@@ -42,6 +43,9 @@ public:
     double length() const;
     double distance(const signature &o) const;
     bool operator ==(const signature &o) const;
+    std::string to_string() const;
+
+    static signature from_string(std::string &&s);
 
     static signature from_path(const std::filesystem::path &path, const signature_config &cfg);
 
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