From 525a85ee696be44be66eb995882ac830a4eabc91 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=A7=A6=E4=B8=96=E6=88=90?= <qeesung@live.com>
Date: Sun, 21 Oct 2018 12:48:06 +0800
Subject: [PATCH] Update README.md

---
 README.md | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/README.md b/README.md
index 4e331b6..ad90b01 100644
--- a/README.md
+++ b/README.md
@@ -83,6 +83,32 @@ func main() {
 }
 ```
 
+convert options
+
+```golang
+type Options struct {
+	Ratio          float64 .       // Scale Ratio
+	ExpectedWidth  int             // Convert the image with fixed width
+	ExpectedHeight int             // Convert the image with fixed height
+	FitScreen      bool            // Scale the image to fit the tereminal screen
+	Colored bool                   // if convert the image to colored ascii
+}
+```
+
+supported convert function
+```golang
+// convert a image object to ascii matrix
+func Image2ASCIIMatrix(image image.Image, imageConvertOptions *Options) []string {}
+
+// convert a image object to ascii matrix and then join the matrix to a string
+func Image2ASCIIString(image image.Image, options *Options) string {}
+
+// convert a image object by input a string to ascii matrix then join the matrix to a string
+func ImageFile2ASCIIString(imageFilename string, option *Options) string {}
+```
+
+
+
 ## Sample outputs
 
 | Raw Image                                                                                       | ASCII Image                                                                                                |
-- 
2.45.2