downscaling.hpp

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/* Copyright (c) 2023 Otto Link. Distributed under the terms of the GNU General
   Public License. The full license is in the file LICENSE, distributed with
   this software. */
 
#pragma once
#include <functional>
 
#include "highmap/array.hpp"
 
namespace hmap
{
 
void downscale_transform(Array                        &array,
                         float                         kc,
                         std::function<void(Array &x)> unary_op,
                         bool apply_prefiltering = false);
 
void downscale_transform_multi(
    Array                                                 &array,
    std::vector<float>                                     kc_list,
    std::function<void(Array &x, const int current_index)> unary_op,
    bool apply_prefiltering = false);
 
} // namespace hmap