colorize.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 "highmap/array.hpp"
#include "highmap/tensor.hpp"
 
namespace hmap
{
 
enum Cmap : int; // highmap/colormap.hpp
 
void apply_hillshade(Tensor      &img,
                     const Array &array,
                     float        vmin = 0.f,
                     float        vmax = 1.f,
                     float        exponent = 1.f);
 
void apply_hillshade(std::vector<uint8_t> &img,
                     const Array          &array,
                     float                 vmin = 0.f,
                     float                 vmax = 1.f,
                     float                 exponent = 1.f,
                     bool                  is_img_rgba = false);
 
Tensor colorize(const Array &array,
                float        vmin,
                float        vmax,
                int          cmap,
                bool         hillshading,
                bool         reverse = false,
                const Array *p_noise = nullptr);
 
Tensor colorize_grayscale(const Array &array);
 
Tensor colorize_histogram(const Array &array);
 
Tensor colorize_slope_height_heatmap(const Array &array, int cmap);
 
Tensor colorize_vec2(const Array &array1, const Array &array2);
 
} // namespace hmap