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24 #include "arm_compute/runtime/NEON/NEFunctions.h"
26 #include "arm_compute/core/Types.h"
27 #include "utils/Utils.h"
29 using namespace arm_compute;
30 using namespace utils;
32 class NEONScaleExample : public Example
35 void do_setup(int argc, char **argv) override
42 std::cout << "Usage: ./build/neon_scale[input_image.ppm]\n\n";
43 std::cout << "No input_image provided, creating a dummy 640x480 image\n";
44 // Create an empty grayscale 640x480 image
45 src.allocator()->init(TensorInfo(640, 480, Format::U8));
50 ppm.init_image(src, Format::U8);
53 constexpr int scale_factor = 2;
55 TensorInfo dst_tensor_info(src.info()->dimension(0) / scale_factor, src.info()->dimension(1) / scale_factor,
58 // Configure the destination image
59 dst.allocator()->init(dst_tensor_info);
61 // Configure Scale function object:
62 scale.configure(&src, &dst, InterpolationPolicy::NEAREST_NEIGHBOR, BorderMode::UNDEFINED);
64 // Allocate all the images
65 src.allocator()->allocate();
66 dst.allocator()->allocate();
68 // Fill the input image with the content of the PPM image if a filename was provided:
72 output_filename = std::string(argv[1]) + "_out.ppm";
75 void do_run() override
77 // Run the scale operation:
80 void do_teardown() override
82 // Save the result to file:
83 if(!output_filename.empty())
85 save_to_ppm(dst, output_filename); // save_to_ppm maps and unmaps the image to store as PPM
92 std::string output_filename{};
95 /** Main program for convolution test
97 * @param[in] argc Number of arguments
98 * @param[in] argv Arguments ( [optional] Path to PPM image to process )
100 int main(int argc, char **argv)
102 return utils::run_example<NEONScaleExample>(argc, argv);