| 36 | } |
| 37 | |
| 38 | af_err af_sobel_operator(af_array *dx, af_array *dy, const af_array img, |
| 39 | const unsigned ker_size) { |
| 40 | try { |
| 41 | // FIXME: ADD SUPPORT FOR OTHER KERNEL SIZES |
| 42 | // ARG_ASSERT(4, (ker_size==3 || ker_size==5 || ker_size==7)); |
| 43 | ARG_ASSERT(4, (ker_size == 3)); |
| 44 | |
| 45 | const ArrayInfo &info = getInfo(img); |
| 46 | af::dim4 dims = info.dims(); |
| 47 | |
| 48 | DIM_ASSERT(3, (dims.ndims() >= 2)); |
| 49 | |
| 50 | ArrayPair output; |
| 51 | af_dtype type = info.getType(); |
| 52 | switch (type) { |
| 53 | case f32: |
| 54 | output = sobelDerivatives<float, float>(img, ker_size); |
| 55 | break; |
| 56 | case f64: |
| 57 | output = sobelDerivatives<double, double>(img, ker_size); |
| 58 | break; |
| 59 | case s32: output = sobelDerivatives<int, int>(img, ker_size); break; |
| 60 | case u32: |
| 61 | output = sobelDerivatives<uint, int>(img, ker_size); |
| 62 | break; |
| 63 | case s16: |
| 64 | output = sobelDerivatives<short, int>(img, ker_size); |
| 65 | break; |
| 66 | case u16: |
| 67 | output = sobelDerivatives<ushort, int>(img, ker_size); |
| 68 | break; |
| 69 | case b8: output = sobelDerivatives<char, int>(img, ker_size); break; |
| 70 | case s8: |
| 71 | output = sobelDerivatives<schar, int>(img, ker_size); |
| 72 | break; |
| 73 | case u8: |
| 74 | output = sobelDerivatives<uchar, int>(img, ker_size); |
| 75 | break; |
| 76 | default: TYPE_ERROR(1, type); |
| 77 | } |
| 78 | std::swap(*dx, output.first); |
| 79 | std::swap(*dy, output.second); |
| 80 | } |
| 81 | CATCHALL; |
| 82 | |
| 83 | return AF_SUCCESS; |
| 84 | } |