add Grad filter

Change-Id: I30fc0810c54f3daa31726188a4c3762df33953a7
10 files changed
tree: da8abe57ccc4c2040b9989739b926ccf0544c8c9
  1. gallerycommon/
  2. jni_jpegstream/
  3. src/
  4. src_pd/
  5. tests/
  6. tests_camera/