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Diffstat (limited to 'jni/filters/kmeans.cc')
-rw-r--r-- | jni/filters/kmeans.cc | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/jni/filters/kmeans.cc b/jni/filters/kmeans.cc deleted file mode 100644 index 97cead7bc..000000000 --- a/jni/filters/kmeans.cc +++ /dev/null @@ -1,81 +0,0 @@ -/* - * 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. - */ - -#include "filters.h" -#include "kmeans.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * For reasonable speeds: - * k < 30 - * small_ds_bitmap width/height < 64 pixels. - * large_ds_bitmap width/height < 512 pixels - * - * bad for high-frequency image noise - */ - -void JNIFUNCF(ImageFilterKMeans, nativeApplyFilter, jobject bitmap, jint width, jint height, - jobject large_ds_bitmap, jint lwidth, jint lheight, jobject small_ds_bitmap, - jint swidth, jint sheight, jint p, jint seed) -{ - char* destination = 0; - char* larger_ds_dst = 0; - char* smaller_ds_dst = 0; - AndroidBitmap_lockPixels(env, bitmap, (void**) &destination); - AndroidBitmap_lockPixels(env, large_ds_bitmap, (void**) &larger_ds_dst); - AndroidBitmap_lockPixels(env, small_ds_bitmap, (void**) &smaller_ds_dst); - unsigned char * dst = (unsigned char *) destination; - - unsigned char * small_ds = (unsigned char *) smaller_ds_dst; - unsigned char * large_ds = (unsigned char *) larger_ds_dst; - - // setting for small bitmap - int len = swidth * sheight * 4; - int dimension = 3; - int stride = 4; - int iterations = 20; - int k = p; - unsigned int s = seed; - unsigned char finalCentroids[k * stride]; - - // get initial picks from small downsampled image - runKMeans<unsigned char, int>(k, finalCentroids, small_ds, len, dimension, - stride, iterations, s); - - - len = lwidth * lheight * 4; - iterations = 8; - unsigned char nextCentroids[k * stride]; - - // run kmeans on large downsampled image - runKMeansWithPicks<unsigned char, int>(k, nextCentroids, large_ds, len, - dimension, stride, iterations, finalCentroids); - - len = width * height * 4; - - // apply to final image - applyCentroids<unsigned char, int>(k, nextCentroids, dst, len, dimension, stride); - - AndroidBitmap_unlockPixels(env, small_ds_bitmap); - AndroidBitmap_unlockPixels(env, large_ds_bitmap); - AndroidBitmap_unlockPixels(env, bitmap); -} -#ifdef __cplusplus -} -#endif |