image_processing.h

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// SPDX-License-Identifier: AGPL-3.0-only
// Copyright (C) 2026 Artificial Intelligence Techniques, S.L. and Roberto López González
 
#pragma once
 
#include "opennn/core/opennn_types.h"
 
namespace opennn
{
 
Tensor3 load_image(const filesystem::path&);
 
bool is_supported_image_file(const filesystem::path&);
 
void load_image(const filesystem::path&,
                float*,
                Index,
                Index,
                Index);
 
Tensor3 resize_image(const Tensor3&, Index, Index);
 
template <typename Pixel>
inline float bilinear_blend(Pixel v00, Pixel v01, Pixel v10, Pixel v11, float dx, float dy)
{
    const float top    = float(v00) * (1.0f - dx) + float(v01) * dx;
    const float bottom = float(v10) * (1.0f - dx) + float(v11) * dx;
    return top * (1.0f - dy) + bottom * dy;
}
 
void reflect_image_horizontal(TensorMap3&);
void reflect_image_vertical(TensorMap3&);
void rotate_image(const TensorMap3&, TensorMap3&, float);
void translate_image_x(TensorMap3&, Index);
void translate_image_y(TensorMap3&, Index);
}