geom.hpp

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// toolboxes/image/include/nk/image/geom/geom.hpp
//
// Basic geometric transforms: resize / crop / rotate / translate.
// All preserve the input element type (uint8, double, …) and accept
// either H×W (grayscale) or H×W×C (multi-channel) arrays.
 
#pragma once
 
#include <memory_resource>
#include <nk/value/value.hpp>
#include <string>
 
namespace nk::image {

 

Value imresize(const Value &A, double scale, const std::string &method,
               std::pmr::memory_resource *mr = nullptr);

Value imresize(const Value &A, size_t outH, size_t outW,
               const std::string &method,
               std::pmr::memory_resource *mr = nullptr);

Value imcrop(const Value &A, double xmin, double ymin,
             double width, double height,
             std::pmr::memory_resource *mr = nullptr);

Value imcrop3(const Value &V, const Value &cuboid,
              std::pmr::memory_resource *mr = nullptr);

Value imrotate(const Value &A, double angle, const std::string &method,
               const std::string &bbox,
               std::pmr::memory_resource *mr = nullptr);

Value imtranslate(const Value &A, double dx, double dy,
                  std::pmr::memory_resource *mr = nullptr);

Value axes2pix(double n, const Value &extent, const Value &axesCoord,
               std::pmr::memory_resource *mr = nullptr);

Value imresize3(const Value &V, size_t outR, size_t outC, size_t outD,
                const std::string &method, bool antialias,
                std::pmr::memory_resource *mr = nullptr);

Value imresize3(const Value &V, double scale,
                const std::string &method, bool antialias,
                std::pmr::memory_resource *mr = nullptr);

Value imrotate3(const Value &V, double angle_deg,
                double Wx, double Wy, double Wz,
                const std::string &method, const std::string &bbox,
                double fill,
                std::pmr::memory_resource *mr = nullptr);

Value impyramid(const Value &A, const std::string &type,
                std::pmr::memory_resource *mr = nullptr);
 

} // namespace nk::image