Added K-Means clustering filter.

Change-Id: If8961d4a21de953b754cf74aefc222b6bec902a3

3 files changed, 76 insertions, 1 deletions

diff --git a/src/com/android/gallery3d/filtershow/FilterShowActivity.java b/src/com/android/gallery3d/filtershow/FilterShowActivity.java
index a3da0c6be..161321904 100644
--- a/src/com/android/gallery3d/filtershow/FilterShowActivity.java
+++ b/src/com/android/gallery3d/filtershow/FilterShowActivity.java
@@ -65,6 +65,7 @@ import com.android.gallery3d.filtershow.filters.ImageFilterEdge;
 import com.android.gallery3d.filtershow.filters.ImageFilterExposure;
 import com.android.gallery3d.filtershow.filters.ImageFilterFx;
 import com.android.gallery3d.filtershow.filters.ImageFilterHue;
+import com.android.gallery3d.filtershow.filters.ImageFilterKMeans;
 import com.android.gallery3d.filtershow.filters.ImageFilterNegative;
 import com.android.gallery3d.filtershow.filters.ImageFilterParametricBorder;
 import com.android.gallery3d.filtershow.filters.ImageFilterRS;
@@ -311,7 +312,8 @@ public class FilterShowActivity extends Activity implements OnItemClickListener,
                 new ImageFilterSaturated(),
                 new ImageFilterBwFilter(),
                 new ImageFilterNegative(),
-                new ImageFilterEdge()
+                new ImageFilterEdge(),
+                new ImageFilterKMeans()
         };
 
         for (int i = 0; i < filters.length; i++) {
diff --git a/src/com/android/gallery3d/filtershow/filters/ImageFilterEdge.java b/src/com/android/gallery3d/filtershow/filters/ImageFilterEdge.java
index e2ce0dacd..9eda64874 100644
--- a/src/com/android/gallery3d/filtershow/filters/ImageFilterEdge.java
+++ b/src/com/android/gallery3d/filtershow/filters/ImageFilterEdge.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.android.gallery3d.filtershow.filters;
 
 import android.graphics.Bitmap;
diff --git a/src/com/android/gallery3d/filtershow/filters/ImageFilterKMeans.java b/src/com/android/gallery3d/filtershow/filters/ImageFilterKMeans.java
new file mode 100644
index 000000000..3c725ac81
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/filters/ImageFilterKMeans.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.gallery3d.filtershow.filters;
+
+import android.graphics.Bitmap;
+
+import com.android.gallery3d.R;
+
+public class ImageFilterKMeans extends ImageFilter {
+    public ImageFilterKMeans() {
+        mName = "KMeans";
+        mMaxParameter = 20;
+        mMinParameter = 2;
+        mPreviewParameter = 4;
+        mDefaultParameter = 4;
+        mParameter = 4;
+    }
+
+    native protected void nativeApplyFilter(Bitmap bitmap, int w, int h, int p);
+
+    @Override
+    public int getButtonId() {
+        return R.id.kmeansButton;
+    }
+
+    @Override
+    public int getTextId() {
+        return R.string.kmeans;
+    }
+
+    @Override
+    public boolean isNil() {
+        return false;
+    }
+
+    @Override
+    public Bitmap apply(Bitmap bitmap, float scaleFactor, boolean highQuality) {
+        int w = bitmap.getWidth();
+        int h = bitmap.getHeight();
+        int p = Math.max(mParameter, mMinParameter) % (mMaxParameter + 1);
+        nativeApplyFilter(bitmap, w, h, p);
+        return bitmap;
+    }
+}