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-rw-r--r--src/backends/RefWorkloads/ResizeBilinear.cpp92
1 files changed, 0 insertions, 92 deletions
diff --git a/src/backends/RefWorkloads/ResizeBilinear.cpp b/src/backends/RefWorkloads/ResizeBilinear.cpp
deleted file mode 100644
index 0bce3c7ed8..0000000000
--- a/src/backends/RefWorkloads/ResizeBilinear.cpp
+++ /dev/null
@@ -1,92 +0,0 @@
-//
-// Copyright © 2017 Arm Ltd. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-
-#include "ResizeBilinear.hpp"
-
-#include "TensorBufferArrayView.hpp"
-
-#include <boost/numeric/conversion/cast.hpp>
-
-#include <cmath>
-#include <algorithm>
-
-namespace armnn
-{
-
-namespace
-{
-
-inline float Lerp(float a, float b, float w)
-{
- return w * b + (1.f - w) * a;
-}
-
-}
-
-void ResizeBilinear(const float* in, const TensorInfo& inputInfo, float* out, const TensorInfo& outputInfo)
-{
- // We follow the definition of TensorFlow and AndroidNN: the top-left corner of a texel in the output
- // image is projected into the input image to figure out the interpolants and weights. Note that this
- // will yield different results than if projecting the centre of output texels.
-
- const unsigned int batchSize = inputInfo.GetShape()[0];
- const unsigned int channelCount = inputInfo.GetShape()[1];
-
- const unsigned int inputHeight = inputInfo.GetShape()[2];
- const unsigned int inputWidth = inputInfo.GetShape()[3];
- const unsigned int outputHeight = outputInfo.GetShape()[2];
- const unsigned int outputWidth = outputInfo.GetShape()[3];
-
- // How much to scale pixel coordinates in the output image, to get the corresponding pixel coordinates
- // in the input image.
- const float scaleY = boost::numeric_cast<float>(inputHeight) / boost::numeric_cast<float>(outputHeight);
- const float scaleX = boost::numeric_cast<float>(inputWidth) / boost::numeric_cast<float>(outputWidth);
-
- TensorBufferArrayView<const float> input(inputInfo.GetShape(), in);
- TensorBufferArrayView<float> output(outputInfo.GetShape(), out);
-
- for (unsigned int n = 0; n < batchSize; ++n)
- {
- for (unsigned int c = 0; c < channelCount; ++c)
- {
- for (unsigned int y = 0; y < outputHeight; ++y)
- {
- // Corresponding real-valued height coordinate in input image.
- const float iy = boost::numeric_cast<float>(y) * scaleY;
-
- // Discrete height coordinate of top-left texel (in the 2x2 texel area used for interpolation).
- const float fiy = floorf(iy);
- const unsigned int y0 = boost::numeric_cast<unsigned int>(fiy);
-
- // Interpolation weight (range [0,1]).
- const float yw = iy - fiy;
-
- for (unsigned int x = 0; x < outputWidth; ++x)
- {
- // Real-valued and discrete width coordinates in input image.
- const float ix = boost::numeric_cast<float>(x) * scaleX;
- const float fix = floorf(ix);
- const unsigned int x0 = boost::numeric_cast<unsigned int>(fix);
-
- // Interpolation weight (range [0,1]).
- const float xw = ix - fix;
-
- // Discrete width/height coordinates of texels below and to the right of (x0, y0).
- const unsigned int x1 = std::min(x0 + 1, inputWidth - 1u);
- const unsigned int y1 = std::min(y0 + 1, inputHeight - 1u);
-
- // Interpolation
- const float ly0 = Lerp(input.Get(n, c, y0, x0), input.Get(n, c, y0, x1), xw); // lerp along row y0.
- const float ly1 = Lerp(input.Get(n, c, y1, x0), input.Get(n, c, y1, x1), xw); // lerp along row y1.
- const float l = Lerp(ly0, ly1, yw);
-
- output.Get(n, c, y, x) = l;
- }
- }
- }
- }
-}
-
-} //namespace armnn