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24 #include "arm_compute/runtime/NEON/NEFunctions.h"
26 #include "arm_compute/core/Types.h"
27 #include "test_helpers/Utils.h"
29 using namespace arm_compute;
30 using namespace test_helpers;
32 /** Gaussian 3x3 matrix
34 const int16_t gaussian3x3[] =
41 /** Gaussian 5x5 matrix
43 const int16_t gaussian5x5[] =
52 void main_neon_convolution(int argc, const char **argv)
54 /** [Accurate padding] **/
61 std::cout << "Usage: ./build/neon_convolution [input_image.ppm]\n\n";
62 std::cout << "No input_image provided, creating a dummy 640x480 image\n";
63 // Initialize just the dimensions and format of your buffers:
64 src.allocator()->init(TensorInfo(640, 480, Format::U8));
69 // Initialize just the dimensions and format of your buffers:
70 ppm.init_image(src, Format::U8);
73 // Initialize just the dimensions and format of the temporary and destination images:
74 tmp.allocator()->init(*src.info());
75 dst.allocator()->init(*src.info());
77 NEConvolution3x3 conv3x3;
78 NEConvolution5x5 conv5x5;
80 // Apply a Gaussian 3x3 filter to the source image followed by a Gaussian 5x5:
81 // The function will automatically update the padding information inside input and output to match its requirements
82 conv3x3.configure(&src, &tmp, gaussian3x3, 0 /* Let arm_compute calculate the scale */, BorderMode::UNDEFINED);
83 conv5x5.configure(&tmp, &dst, gaussian5x5, 0 /* Let arm_compute calculate the scale */, BorderMode::UNDEFINED);
85 // Now that the padding requirements are known we can allocate the images:
86 src.allocator()->allocate();
87 tmp.allocator()->allocate();
88 dst.allocator()->allocate();
90 // Fill the input image with the content of the PPM image if a filename was provided:
96 //Execute the functions:
100 // Save the result to file:
103 const std::string output_filename = std::string(argv[1]) + "_out.ppm";
104 save_to_ppm(dst, output_filename);
106 /** [Accurate padding] **/
109 /** Main program for convolution test
111 * @param[in] argc Number of arguments
112 * @param[in] argv Arguments ( [optional] Path to PPM image to process )
114 int main(int argc, const char **argv)
116 return test_helpers::run_example(argc, argv, main_neon_convolution);