From dfeafd5f62bb48422530be41db736c2dbbcbadc3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BE=90=E6=B6=9B?= <midnite@outlook.com>
Date: Sat, 1 Jul 2023 22:16:36 +0800
Subject: [PATCH] =?UTF-8?q?feat(hash):=E5=9F=BA=E6=9C=AC=E5=AE=8C=E6=88=90?=
 =?UTF-8?q?=E5=9B=BE=E5=83=8F=E6=84=9F=E7=9F=A5=E6=95=A3=E5=88=97=E5=8A=9F?=
 =?UTF-8?q?=E8=83=BD=E3=80=82?=
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---
 Cargo.toml      |  2 ++
 src/hash/mod.rs | 21 +++++++++++++++++++++
 src/lib.rs      |  2 ++
 3 files changed, 25 insertions(+)

diff --git a/Cargo.toml b/Cargo.toml
index 10f8fc7..59dc1d6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,10 +11,12 @@ crate-type = ["dylib", "rlib"]
 [dependencies]
 aes = "0.8.3"
 base64 = "0.21.2"
+blockhash = "0.5.0"
 cbc = "0.1.2"
 des = "0.8.1"
 hex = "0.4.3"
 hmac-sha512 = "1.1.5"
+image = "0.24.6"
 md-5 = "0.10.5"
 rand = "0.8.5"
 sha1 = "0.10.5"
diff --git a/src/hash/mod.rs b/src/hash/mod.rs
index 69fb356..3c090c1 100644
--- a/src/hash/mod.rs
+++ b/src/hash/mod.rs
@@ -26,3 +26,24 @@ pub mod sha512 {
         crate::serialize::to_hex(result.as_slice())
     }
 }
+
+pub mod image_hash {
+    pub enum Precision {
+        Low = 2,
+        Medium = 8,
+        High = 18,
+        Detailed = 32,
+    }
+
+    pub fn hash_image<T: image::GenericImage<Pixel = image::Rgb<u8>>>(
+        input: &T,
+        precision: Precision,
+    ) -> String {
+        match precision {
+            Precision::Low => blockhash::blockhash16(input).to_string(),
+            Precision::Medium => blockhash::blockhash64(input).to_string(),
+            Precision::High => blockhash::blockhash144(input).to_string(),
+            Precision::Detailed => blockhash::blockhash256(input).to_string(),
+        }
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index d85ad96..b637022 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,5 @@
+pub extern crate image;
+
 pub mod encryption;
 pub mod hash;
 pub mod serial_code;