From 670105f579342e93ba8c189fada688eb178046df Mon Sep 17 00:00:00 2001
From: ray <ray.g@gmx.de>
Date: Fri, 13 Mar 2015 15:13:35 +0100
Subject: [PATCH 1/3] improve image search use object instead of a string for
 the imagefilters

---
 README.md   |  8 +++++++-
 lib/bing.js | 18 +++++++++++++++++-
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index afc93b2..fd3cc38 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,13 @@ Adding filter(s) for the Image Search
 ```js
 Bing.images("Ninja Turtles", function(error, res, body){
   console.log(body);
-}, {imagefilters: 'Size:Small+Color:Monochrome'});
+  }, 
+  {
+    imagefilters: {
+      size: 'small',
+      color: 'monochrome' 
+    }
+  });
 ```
 Accepted filter values:
 * Size:\<Small | Medium | Large\>
diff --git a/lib/bing.js b/lib/bing.js
index 04052a5..df26386 100644
--- a/lib/bing.js
+++ b/lib/bing.js
@@ -139,13 +139,29 @@ Bing.prototype.search = Bing.prototype.web;
  *
  * @param {Object} options            Options to command, allows overriding of
  *                                    rootUri, accKey (Bing API key),
- *                                    userAgent, reqTimeout, top, skip
+ *                                    userAgent, reqTimeout, top, skip,
+ *                                    imagefilters
  * @function
  */
 Bing.prototype.images = function(query, callback, options) {
+    if (options.imagefilters) {
+      var filterQuery = '';
+      var filters = Object.keys(options.imagefilters);
+      filters.map(function(key, i) {
+        filterQuery += capitalizeFirstLetter(key) + ':';
+        filterQuery += capitalizeFirstLetter(options.imagefilters[key]);
+        if (i < filters.length - 1)
+          filterQuery += '+';
+      });
+      options.imagefilters = filterQuery;
+    }
     this.searchVertical(query, "Image", callback, options);
 };
 
+function capitalizeFirstLetter(s) {
+  return s.charAt(0).toUpperCase() + s.slice(1);
+}
+
 
 module.exports = Bing;
 

From b752fcd12e8b9f04358b0fda03d2f3fbc4e0106d Mon Sep 17 00:00:00 2001
From: ray <ray.g@gmx.de>
Date: Fri, 13 Mar 2015 15:22:08 +0100
Subject: [PATCH 2/3] fix missing options bug

---
 lib/bing.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/bing.js b/lib/bing.js
index df26386..41ce18f 100644
--- a/lib/bing.js
+++ b/lib/bing.js
@@ -144,7 +144,7 @@ Bing.prototype.search = Bing.prototype.web;
  * @function
  */
 Bing.prototype.images = function(query, callback, options) {
-    if (options.imagefilters) {
+    if (options && options.imagefilters) {
       var filterQuery = '';
       var filters = Object.keys(options.imagefilters);
       filters.map(function(key, i) {
@@ -162,6 +162,5 @@ function capitalizeFirstLetter(s) {
   return s.charAt(0).toUpperCase() + s.slice(1);
 }
 
-
 module.exports = Bing;
 

From f4675b5d54b2af5e476bf505542f457cb6d1dbbe Mon Sep 17 00:00:00 2001
From: ray <ray.g@gmx.de>
Date: Fri, 13 Mar 2015 15:31:44 +0100
Subject: [PATCH 3/3] dont break older versions

---
 lib/bing.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/bing.js b/lib/bing.js
index 41ce18f..d543c4f 100644
--- a/lib/bing.js
+++ b/lib/bing.js
@@ -144,7 +144,9 @@ Bing.prototype.search = Bing.prototype.web;
  * @function
  */
 Bing.prototype.images = function(query, callback, options) {
-    if (options && options.imagefilters) {
+    if (options 
+        && options.imagefilters 
+        && typeof options.imagefilters === 'object') {
       var filterQuery = '';
       var filters = Object.keys(options.imagefilters);
       filters.map(function(key, i) {