From 60dc1d437cd14c31cb54d2f05eb11ef4752406dd Mon Sep 17 00:00:00 2001
From: chenqinghe <chenqh721@foxmail.com>
Date: Sat, 20 Jan 2018 09:44:39 +0800
Subject: [PATCH] add face match demo

---
 example/vision/face/match.go  |  1 -
 example/vision/face/readme.md | 20 ++++++++++++++++++++
 vision/image.go               |  4 ++--
 3 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/example/vision/face/match.go b/example/vision/face/match.go
index 4a5c9cc..605c28f 100644
--- a/example/vision/face/match.go
+++ b/example/vision/face/match.go
@@ -22,6 +22,5 @@ func Match() {
 	if err != nil {
 		panic(err)
 	}
-
 	fmt.Println(rs.ToString())
 }
diff --git a/example/vision/face/readme.md b/example/vision/face/readme.md
index 2cdb28a..0d28351 100644
--- a/example/vision/face/readme.md
+++ b/example/vision/face/readme.md
@@ -12,6 +12,26 @@ rs, err := client.DetectAndAnalysis(
     vision.MustFromFile("face.jpg"),
     options,
 )
+if err != nil {
+    panic(err)
+}
+fmt.Println(rs.ToString())
+```
+
+- 人脸比对
+```Go
+client := face.NewFaceClient(APIKEY, APISECRET)
+
+rs, err := client.Match(
+    vision.MustFromFile("p1.jpg"),
+    vision.MustFromFile("p2.jpg"),
+    map[string]interface{}{
+        "ext_fields":     "qualities",                 //返回质量信息，取值固定，目前支持qualities(质量检测)(对所有图片都会做改处理)
+        "image_liveness": "faceliveness,faceliveness", //返回的活体信息，“faceliveness,faceliveness” 表示对比对的两张图片都做活体检测；“,faceliveness” 表示对第一张图片不做活体检测、第二张图做活体检测；“faceliveness,” 表示对第一张图片做活体检测、第二张图不做活体检测；
+        "types":          "7,7",
+    },
+)
+
 if err != nil {
     panic(err)
 }
diff --git a/vision/image.go b/vision/image.go
index 68d1e84..c9e5174 100644
--- a/vision/image.go
+++ b/vision/image.go
@@ -42,7 +42,7 @@ func FromFile(file string) (*Image, error) {
 		return nil, err
 	}
 
-	size, err := getImageSize(bytes.NewBuffer(imageContent))
+	size, err := getImageSize(bytes.NewReader(imageContent))
 	if err != nil {
 		return nil, err
 	}
@@ -50,7 +50,7 @@ func FromFile(file string) (*Image, error) {
 		return nil, errors.New("image size is invalid")
 	}
 
-	reader := bytes.NewBuffer(imageContent)
+	reader := bytes.NewReader(imageContent)
 
 	return &Image{
 		Reader: reader,