diff --git a/src/ol/image.js b/src/ol/image.js
index d990a3a7c0..876ba618d7 100644
--- a/src/ol/image.js
+++ b/src/ol/image.js
@@ -2,6 +2,7 @@ goog.provide('ol.Image');
 
 goog.require('ol');
 goog.require('ol.ImageBase');
+goog.require('ol.ImageState');
 goog.require('ol.events');
 goog.require('ol.events.EventType');
 goog.require('ol.extent');
@@ -22,7 +23,7 @@ goog.require('ol.obj');
 ol.Image = function(extent, resolution, pixelRatio, attributions, src,
     crossOrigin, imageLoadFunction) {
 
-  ol.ImageBase.call(this, extent, resolution, pixelRatio, ol.Image.State.IDLE,
+  ol.ImageBase.call(this, extent, resolution, pixelRatio, ol.ImageState.IDLE,
       attributions);
 
   /**
@@ -54,9 +55,9 @@ ol.Image = function(extent, resolution, pixelRatio, attributions, src,
 
   /**
    * @protected
-   * @type {ol.Image.State}
+   * @type {ol.ImageState}
    */
-  this.state = ol.Image.State.IDLE;
+  this.state = ol.ImageState.IDLE;
 
   /**
    * @private
@@ -99,7 +100,7 @@ ol.Image.prototype.getImage = function(opt_context) {
  * @private
  */
 ol.Image.prototype.handleImageError_ = function() {
-  this.state = ol.Image.State.ERROR;
+  this.state = ol.ImageState.ERROR;
   this.unlistenImage_();
   this.changed();
 };
@@ -114,7 +115,7 @@ ol.Image.prototype.handleImageLoad_ = function() {
   if (this.resolution === undefined) {
     this.resolution = ol.extent.getHeight(this.extent) / this.image_.height;
   }
-  this.state = ol.Image.State.LOADED;
+  this.state = ol.ImageState.LOADED;
   this.unlistenImage_();
   this.changed();
 };
@@ -127,8 +128,8 @@ ol.Image.prototype.handleImageLoad_ = function() {
  * @api
  */
 ol.Image.prototype.load = function() {
-  if (this.state == ol.Image.State.IDLE || this.state == ol.Image.State.ERROR) {
-    this.state = ol.Image.State.LOADING;
+  if (this.state == ol.ImageState.IDLE || this.state == ol.ImageState.ERROR) {
+    this.state = ol.ImageState.LOADING;
     this.changed();
     ol.DEBUG && console.assert(!this.imageListenerKeys_,
         'this.imageListenerKeys_ should be null');
@@ -160,14 +161,3 @@ ol.Image.prototype.unlistenImage_ = function() {
   this.imageListenerKeys_.forEach(ol.events.unlistenByKey);
   this.imageListenerKeys_ = null;
 };
-
-
-/**
- * @enum {number}
- */
-ol.Image.State = {
-  IDLE: 0,
-  LOADING: 1,
-  LOADED: 2,
-  ERROR: 3
-};
diff --git a/src/ol/imagebase.js b/src/ol/imagebase.js
index c8305870b7..451fcd4d95 100644
--- a/src/ol/imagebase.js
+++ b/src/ol/imagebase.js
@@ -11,7 +11,7 @@ goog.require('ol.events.EventType');
  * @param {ol.Extent} extent Extent.
  * @param {number|undefined} resolution Resolution.
  * @param {number} pixelRatio Pixel ratio.
- * @param {ol.Image.State} state State.
+ * @param {ol.ImageState} state State.
  * @param {Array.<ol.Attribution>} attributions Attributions.
  */
 ol.ImageBase = function(extent, resolution, pixelRatio, state, attributions) {
@@ -44,7 +44,7 @@ ol.ImageBase = function(extent, resolution, pixelRatio, state, attributions) {
 
   /**
    * @protected
-   * @type {ol.Image.State}
+   * @type {ol.ImageState}
    */
   this.state = state;
 
@@ -102,7 +102,7 @@ ol.ImageBase.prototype.getResolution = function() {
 
 
 /**
- * @return {ol.Image.State} State.
+ * @return {ol.ImageState} State.
  */
 ol.ImageBase.prototype.getState = function() {
   return this.state;
diff --git a/src/ol/imagecanvas.js b/src/ol/imagecanvas.js
index 5e16bf2900..8d70fafafd 100644
--- a/src/ol/imagecanvas.js
+++ b/src/ol/imagecanvas.js
@@ -1,8 +1,8 @@
 goog.provide('ol.ImageCanvas');
 
 goog.require('ol');
-goog.require('ol.Image');
 goog.require('ol.ImageBase');
+goog.require('ol.ImageState');
 
 
 /**
@@ -27,7 +27,7 @@ ol.ImageCanvas = function(extent, resolution, pixelRatio, attributions,
   this.loader_ = opt_loader !== undefined ? opt_loader : null;
 
   var state = opt_loader !== undefined ?
-      ol.Image.State.IDLE : ol.Image.State.LOADED;
+      ol.ImageState.IDLE : ol.ImageState.LOADED;
 
   ol.ImageBase.call(this, extent, resolution, pixelRatio, state, attributions);
 
@@ -64,9 +64,9 @@ ol.ImageCanvas.prototype.getError = function() {
 ol.ImageCanvas.prototype.handleLoad_ = function(err) {
   if (err) {
     this.error_ = err;
-    this.state = ol.Image.State.ERROR;
+    this.state = ol.ImageState.ERROR;
   } else {
-    this.state = ol.Image.State.LOADED;
+    this.state = ol.ImageState.LOADED;
   }
   this.changed();
 };
@@ -76,9 +76,9 @@ ol.ImageCanvas.prototype.handleLoad_ = function(err) {
  * Trigger drawing on canvas.
  */
 ol.ImageCanvas.prototype.load = function() {
-  if (this.state == ol.Image.State.IDLE) {
+  if (this.state == ol.ImageState.IDLE) {
     ol.DEBUG && console.assert(this.loader_, 'this.loader_ must be set');
-    this.state = ol.Image.State.LOADING;
+    this.state = ol.ImageState.LOADING;
     this.changed();
     this.loader_(this.handleLoad_.bind(this));
   }
diff --git a/src/ol/imagestate.js b/src/ol/imagestate.js
new file mode 100644
index 0000000000..57b795f652
--- /dev/null
+++ b/src/ol/imagestate.js
@@ -0,0 +1,11 @@
+goog.provide('ol.ImageState');
+
+/**
+ * @enum {number}
+ */
+ol.ImageState = {
+  IDLE: 0,
+  LOADING: 1,
+  LOADED: 2,
+  ERROR: 3
+};
diff --git a/src/ol/renderer/layer.js b/src/ol/renderer/layer.js
index 198d91ca37..df07c26a2a 100644
--- a/src/ol/renderer/layer.js
+++ b/src/ol/renderer/layer.js
@@ -1,7 +1,7 @@
 goog.provide('ol.renderer.Layer');
 
 goog.require('ol');
-goog.require('ol.Image');
+goog.require('ol.ImageState');
 goog.require('ol.Observable');
 goog.require('ol.Tile');
 goog.require('ol.asserts');
@@ -98,7 +98,7 @@ ol.renderer.Layer.prototype.getLayer = function() {
  */
 ol.renderer.Layer.prototype.handleImageChange_ = function(event) {
   var image = /** @type {ol.Image} */ (event.target);
-  if (image.getState() === ol.Image.State.LOADED) {
+  if (image.getState() === ol.ImageState.LOADED) {
     this.renderIfReadyAndVisible();
   }
 };
@@ -114,24 +114,24 @@ ol.renderer.Layer.prototype.handleImageChange_ = function(event) {
  */
 ol.renderer.Layer.prototype.loadImage = function(image) {
   var imageState = image.getState();
-  if (imageState != ol.Image.State.LOADED &&
-      imageState != ol.Image.State.ERROR) {
+  if (imageState != ol.ImageState.LOADED &&
+      imageState != ol.ImageState.ERROR) {
     // the image is either "idle" or "loading", register the change
     // listener (a noop if the listener was already registered)
-    ol.DEBUG && console.assert(imageState == ol.Image.State.IDLE ||
-        imageState == ol.Image.State.LOADING,
+    ol.DEBUG && console.assert(imageState == ol.ImageState.IDLE ||
+        imageState == ol.ImageState.LOADING,
         'imageState is "idle" or "loading"');
     ol.events.listen(image, ol.events.EventType.CHANGE,
         this.handleImageChange_, this);
   }
-  if (imageState == ol.Image.State.IDLE) {
+  if (imageState == ol.ImageState.IDLE) {
     image.load();
     imageState = image.getState();
-    ol.DEBUG && console.assert(imageState == ol.Image.State.LOADING ||
-        imageState == ol.Image.State.LOADED,
+    ol.DEBUG && console.assert(imageState == ol.ImageState.LOADING ||
+        imageState == ol.ImageState.LOADED,
         'imageState is "loading" or "loaded"');
   }
-  return imageState == ol.Image.State.LOADED;
+  return imageState == ol.ImageState.LOADED;
 };
 
 
diff --git a/src/ol/renderer/vector.js b/src/ol/renderer/vector.js
index ffa74f0889..d9d72f399e 100644
--- a/src/ol/renderer/vector.js
+++ b/src/ol/renderer/vector.js
@@ -1,7 +1,7 @@
 goog.provide('ol.renderer.vector');
 
 goog.require('ol');
-goog.require('ol.Image');
+goog.require('ol.ImageState');
 goog.require('ol.render.ReplayType');
 
 
@@ -79,15 +79,15 @@ ol.renderer.vector.renderFeature = function(
   imageStyle = style.getImage();
   if (imageStyle) {
     imageState = imageStyle.getImageState();
-    if (imageState == ol.Image.State.LOADED ||
-        imageState == ol.Image.State.ERROR) {
+    if (imageState == ol.ImageState.LOADED ||
+        imageState == ol.ImageState.ERROR) {
       imageStyle.unlistenImageChange(listener, thisArg);
     } else {
-      if (imageState == ol.Image.State.IDLE) {
+      if (imageState == ol.ImageState.IDLE) {
         imageStyle.load();
       }
       imageState = imageStyle.getImageState();
-      ol.DEBUG && console.assert(imageState == ol.Image.State.LOADING,
+      ol.DEBUG && console.assert(imageState == ol.ImageState.LOADING,
           'imageState should be LOADING');
       imageStyle.listenImageChange(listener, thisArg);
       loading = true;
@@ -227,7 +227,7 @@ ol.renderer.vector.renderMultiPolygonGeometry_ = function(replayGroup, geometry,
 ol.renderer.vector.renderPointGeometry_ = function(replayGroup, geometry, style, feature) {
   var imageStyle = style.getImage();
   if (imageStyle) {
-    if (imageStyle.getImageState() != ol.Image.State.LOADED) {
+    if (imageStyle.getImageState() != ol.ImageState.LOADED) {
       return;
     }
     var imageReplay = replayGroup.getReplay(
@@ -256,7 +256,7 @@ ol.renderer.vector.renderPointGeometry_ = function(replayGroup, geometry, style,
 ol.renderer.vector.renderMultiPointGeometry_ = function(replayGroup, geometry, style, feature) {
   var imageStyle = style.getImage();
   if (imageStyle) {
-    if (imageStyle.getImageState() != ol.Image.State.LOADED) {
+    if (imageStyle.getImageState() != ol.ImageState.LOADED) {
       return;
     }
     var imageReplay = replayGroup.getReplay(
diff --git a/src/ol/reproj/image.js b/src/ol/reproj/image.js
index 43c4ada5bc..0ff4aef582 100644
--- a/src/ol/reproj/image.js
+++ b/src/ol/reproj/image.js
@@ -1,8 +1,8 @@
 goog.provide('ol.reproj.Image');
 
 goog.require('ol');
-goog.require('ol.Image');
 goog.require('ol.ImageBase');
+goog.require('ol.ImageState');
 goog.require('ol.events');
 goog.require('ol.events.EventType');
 goog.require('ol.extent');
@@ -99,11 +99,11 @@ ol.reproj.Image = function(sourceProj, targetProj,
   this.sourceListenerKey_ = null;
 
 
-  var state = ol.Image.State.LOADED;
+  var state = ol.ImageState.LOADED;
   var attributions = [];
 
   if (this.sourceImage_) {
-    state = ol.Image.State.IDLE;
+    state = ol.ImageState.IDLE;
     attributions = this.sourceImage_.getAttributions();
   }
 
@@ -117,7 +117,7 @@ ol.inherits(ol.reproj.Image, ol.ImageBase);
  * @inheritDoc
  */
 ol.reproj.Image.prototype.disposeInternal = function() {
-  if (this.state == ol.Image.State.LOADING) {
+  if (this.state == ol.ImageState.LOADING) {
     this.unlistenSource_();
   }
   ol.ImageBase.prototype.disposeInternal.call(this);
@@ -145,7 +145,7 @@ ol.reproj.Image.prototype.getProjection = function() {
  */
 ol.reproj.Image.prototype.reproject_ = function() {
   var sourceState = this.sourceImage_.getState();
-  if (sourceState == ol.Image.State.LOADED) {
+  if (sourceState == ol.ImageState.LOADED) {
     var width = ol.extent.getWidth(this.targetExtent_) / this.targetResolution_;
     var height =
         ol.extent.getHeight(this.targetExtent_) / this.targetResolution_;
@@ -166,20 +166,20 @@ ol.reproj.Image.prototype.reproject_ = function() {
  * @inheritDoc
  */
 ol.reproj.Image.prototype.load = function() {
-  if (this.state == ol.Image.State.IDLE) {
-    this.state = ol.Image.State.LOADING;
+  if (this.state == ol.ImageState.IDLE) {
+    this.state = ol.ImageState.LOADING;
     this.changed();
 
     var sourceState = this.sourceImage_.getState();
-    if (sourceState == ol.Image.State.LOADED ||
-        sourceState == ol.Image.State.ERROR) {
+    if (sourceState == ol.ImageState.LOADED ||
+        sourceState == ol.ImageState.ERROR) {
       this.reproject_();
     } else {
       this.sourceListenerKey_ = ol.events.listen(this.sourceImage_,
           ol.events.EventType.CHANGE, function(e) {
             var sourceState = this.sourceImage_.getState();
-            if (sourceState == ol.Image.State.LOADED ||
-                sourceState == ol.Image.State.ERROR) {
+            if (sourceState == ol.ImageState.LOADED ||
+                sourceState == ol.ImageState.ERROR) {
               this.unlistenSource_();
               this.reproject_();
             }
diff --git a/src/ol/source/image.js b/src/ol/source/image.js
index cc8477aea5..25d7a935a4 100644
--- a/src/ol/source/image.js
+++ b/src/ol/source/image.js
@@ -1,7 +1,7 @@
 goog.provide('ol.source.Image');
 
 goog.require('ol');
-goog.require('ol.Image');
+goog.require('ol.ImageState');
 goog.require('ol.array');
 goog.require('ol.events.Event');
 goog.require('ol.extent');
@@ -147,17 +147,17 @@ ol.source.Image.prototype.getImageInternal = function(extent, resolution, pixelR
 ol.source.Image.prototype.handleImageChange = function(event) {
   var image = /** @type {ol.Image} */ (event.target);
   switch (image.getState()) {
-    case ol.Image.State.LOADING:
+    case ol.ImageState.LOADING:
       this.dispatchEvent(
           new ol.source.Image.Event(ol.source.Image.EventType.IMAGELOADSTART,
               image));
       break;
-    case ol.Image.State.LOADED:
+    case ol.ImageState.LOADED:
       this.dispatchEvent(
           new ol.source.Image.Event(ol.source.Image.EventType.IMAGELOADEND,
               image));
       break;
-    case ol.Image.State.ERROR:
+    case ol.ImageState.ERROR:
       this.dispatchEvent(
           new ol.source.Image.Event(ol.source.Image.EventType.IMAGELOADERROR,
               image));
diff --git a/src/ol/source/imagestatic.js b/src/ol/source/imagestatic.js
index 93137f7875..15eb7df329 100644
--- a/src/ol/source/imagestatic.js
+++ b/src/ol/source/imagestatic.js
@@ -2,6 +2,7 @@ goog.provide('ol.source.ImageStatic');
 
 goog.require('ol');
 goog.require('ol.Image');
+goog.require('ol.ImageState');
 goog.require('ol.dom');
 goog.require('ol.events');
 goog.require('ol.events.EventType');
@@ -70,7 +71,7 @@ ol.source.ImageStatic.prototype.getImageInternal = function(extent, resolution,
  * @inheritDoc
  */
 ol.source.ImageStatic.prototype.handleImageChange = function(evt) {
-  if (this.image_.getState() == ol.Image.State.LOADED) {
+  if (this.image_.getState() == ol.ImageState.LOADED) {
     var imageExtent = this.image_.getExtent();
     var image = this.image_.getImage();
     var imageWidth, imageHeight;
diff --git a/src/ol/style/icon.js b/src/ol/style/icon.js
index 42c82cf313..b614823deb 100644
--- a/src/ol/style/icon.js
+++ b/src/ol/style/icon.js
@@ -1,11 +1,11 @@
 goog.provide('ol.style.Icon');
 
 goog.require('ol');
+goog.require('ol.ImageState');
 goog.require('ol.asserts');
 goog.require('ol.color');
 goog.require('ol.events');
 goog.require('ol.events.EventType');
-goog.require('ol.Image');
 goog.require('ol.style.IconImage');
 goog.require('ol.style.Image');
 
@@ -90,10 +90,10 @@ ol.style.Icon = function(opt_options) {
       6); // A defined and non-empty `src` or `image` must be provided
 
   /**
-   * @type {ol.Image.State}
+   * @type {ol.ImageState}
    */
   var imageState = options.src !== undefined ?
-      ol.Image.State.IDLE : ol.Image.State.LOADED;
+      ol.ImageState.IDLE : ol.ImageState.LOADED;
 
   /**
    * @private
@@ -181,7 +181,7 @@ ol.inherits(ol.style.Icon, ol.style.Image);
 ol.style.Icon.prototype.clone = function() {
   var oldImage = this.getImage(1);
   var newImage;
-  if (this.iconImage_.getImageState() === ol.Image.State.LOADED) {
+  if (this.iconImage_.getImageState() === ol.ImageState.LOADED) {
     if (oldImage.tagName.toUpperCase() === 'IMG') {
       newImage = /** @type {Image} */ (oldImage.cloneNode(true));
     } else {
diff --git a/src/ol/style/iconimage.js b/src/ol/style/iconimage.js
index 50b11a35b6..bfcd3da984 100644
--- a/src/ol/style/iconimage.js
+++ b/src/ol/style/iconimage.js
@@ -5,7 +5,7 @@ goog.require('ol.dom');
 goog.require('ol.events');
 goog.require('ol.events.EventTarget');
 goog.require('ol.events.EventType');
-goog.require('ol.Image');
+goog.require('ol.ImageState');
 goog.require('ol.style');
 
 
@@ -15,7 +15,7 @@ goog.require('ol.style');
  * @param {string|undefined} src Src.
  * @param {ol.Size} size Size.
  * @param {?string} crossOrigin Cross origin.
- * @param {ol.Image.State} imageState Image state.
+ * @param {ol.ImageState} imageState Image state.
  * @param {ol.Color} color Color.
  * @extends {ol.events.EventTarget}
  */
@@ -62,7 +62,7 @@ ol.style.IconImage = function(image, src, size, crossOrigin, imageState,
 
   /**
    * @private
-   * @type {ol.Image.State}
+   * @type {ol.ImageState}
    */
   this.imageState_ = imageState;
 
@@ -83,7 +83,7 @@ ol.style.IconImage = function(image, src, size, crossOrigin, imageState,
    * @type {boolean}
    */
   this.tainting_ = false;
-  if (this.imageState_ == ol.Image.State.LOADED) {
+  if (this.imageState_ == ol.ImageState.LOADED) {
     this.determineTainting_();
   }
 
@@ -96,7 +96,7 @@ ol.inherits(ol.style.IconImage, ol.events.EventTarget);
  * @param {string} src Src.
  * @param {ol.Size} size Size.
  * @param {?string} crossOrigin Cross origin.
- * @param {ol.Image.State} imageState Image state.
+ * @param {ol.ImageState} imageState Image state.
  * @param {ol.Color} color Color.
  * @return {ol.style.IconImage} Icon image.
  */
@@ -139,7 +139,7 @@ ol.style.IconImage.prototype.dispatchChangeEvent_ = function() {
  * @private
  */
 ol.style.IconImage.prototype.handleImageError_ = function() {
-  this.imageState_ = ol.Image.State.ERROR;
+  this.imageState_ = ol.ImageState.ERROR;
   this.unlistenImage_();
   this.dispatchChangeEvent_();
 };
@@ -149,7 +149,7 @@ ol.style.IconImage.prototype.handleImageError_ = function() {
  * @private
  */
 ol.style.IconImage.prototype.handleImageLoad_ = function() {
-  this.imageState_ = ol.Image.State.LOADED;
+  this.imageState_ = ol.ImageState.LOADED;
   if (this.size_) {
     this.image_.width = this.size_[0];
     this.image_.height = this.size_[1];
@@ -172,7 +172,7 @@ ol.style.IconImage.prototype.getImage = function(pixelRatio) {
 
 
 /**
- * @return {ol.Image.State} Image state.
+ * @return {ol.ImageState} Image state.
  */
 ol.style.IconImage.prototype.getImageState = function() {
   return this.imageState_;
@@ -219,12 +219,12 @@ ol.style.IconImage.prototype.getSrc = function() {
  * Load not yet loaded URI.
  */
 ol.style.IconImage.prototype.load = function() {
-  if (this.imageState_ == ol.Image.State.IDLE) {
+  if (this.imageState_ == ol.ImageState.IDLE) {
     ol.DEBUG && console.assert(this.src_ !== undefined,
         'this.src_ must not be undefined');
     ol.DEBUG && console.assert(!this.imageListenerKeys_,
         'no listener keys existing');
-    this.imageState_ = ol.Image.State.LOADING;
+    this.imageState_ = ol.ImageState.LOADING;
     this.imageListenerKeys_ = [
       ol.events.listenOnce(this.image_, ol.events.EventType.ERROR,
           this.handleImageError_, this),
diff --git a/src/ol/style/image.js b/src/ol/style/image.js
index dc9566a1a9..894a88f960 100644
--- a/src/ol/style/image.js
+++ b/src/ol/style/image.js
@@ -124,7 +124,7 @@ ol.style.Image.prototype.getHitDetectionImage = function(pixelRatio) {};
 
 /**
  * @abstract
- * @return {ol.Image.State} Image state.
+ * @return {ol.ImageState} Image state.
  */
 ol.style.Image.prototype.getImageState = function() {};
 
diff --git a/src/ol/style/regularshape.js b/src/ol/style/regularshape.js
index d4003836e7..5b433c3d78 100644
--- a/src/ol/style/regularshape.js
+++ b/src/ol/style/regularshape.js
@@ -4,7 +4,7 @@ goog.require('ol');
 goog.require('ol.colorlike');
 goog.require('ol.dom');
 goog.require('ol.has');
-goog.require('ol.Image');
+goog.require('ol.ImageState');
 goog.require('ol.render.canvas');
 goog.require('ol.style.Image');
 
@@ -234,7 +234,7 @@ ol.style.RegularShape.prototype.getHitDetectionImageSize = function() {
  * @inheritDoc
  */
 ol.style.RegularShape.prototype.getImageState = function() {
-  return ol.Image.State.LOADED;
+  return ol.ImageState.LOADED;
 };