img2num Namespace Reference

Enumerations
enum class	Error {   OK = 0 , BAD_ALLOC = 1 , INVALID_ARGUMENT = 2 , RUNTIME = 3 ,   UNKNOWN = 4 }

Functions
Error	get_last_error ()
const std::string	get_last_error_message ()
void	clear_last_error ()
void	set_error (Error code, const std::string message)
template<typename Func , typename... Args>
void	clear_last_error_and_catch (Func &&exception_prone_func, Args &&... args)
void	gaussian_blur_fft (uint8_t *image, size_t width, size_t height, double sigma)
void	invert_image (uint8_t *ptr, int width, int height)
void	threshold_image (uint8_t *ptr, const int width, const int height, const int num_thresholds)
void	black_threshold_image (uint8_t *ptr, const int width, const int height, const int num_thresholds)
void	kmeans (const uint8_t *data, uint8_t *out_data, int32_t *out_labels, const int32_t width, const int32_t height, const int32_t k, const int32_t max_iter, const uint8_t color_space)
void	bilateral_filter (uint8_t *image, size_t width, size_t height, double sigma_spatial, double sigma_range, uint8_t color_space)
std::string	labels_to_svg (const uint8_t *data, const int32_t *labels, const int width, const int height, const int min_area)

Variables
thread_local Error	last_error
thread_local std::string	last_error_message

Detailed Description

Note

All image buffers are assumed to be stored in row-major order, unless otherwise noted.

Enumeration Type Documentation

Error

enum class img2num::Error

strong

Definition at line 8 of file Error.h.

{ OK = 0, BAD_ALLOC = 1, INVALID_ARGUMENT = 2, RUNTIME = 3, UNKNOWN = 4 };

Function Documentation

bilateral_filter()

void img2num::bilateral_filter	(	uint8_t *	image,
		size_t	width,
		size_t	height,
		double	sigma_spatial,
		double	sigma_range,
		uint8_t	color_space
	)

black_threshold_image()

void img2num::black_threshold_image	(	uint8_t *	ptr,
		const int	width,
		const int	height,
		const int	num_thresholds
	)

clear_last_error_and_catch()

template<typename Func , typename... Args>

void img2num::clear_last_error_and_catch	(	Func &&	exception_prone_func,
		Args &&...	args
	)

Definition at line 25 of file Error.h.

                                                                             {
    clear_last_error();  // Clear any previous error state
    try {
        exception_prone_func(std::forward<Args>(args)...);  // Call the passed function
    } catch (const std::bad_alloc& e) {
        set_error(Error::BAD_ALLOC, e.what());
    } catch (const std::invalid_argument& e) {
        set_error(Error::INVALID_ARGUMENT, e.what());
    } catch (const std::runtime_error& e) {
        set_error(Error::RUNTIME, e.what());
    } catch (const std::exception& e) {
        set_error(Error::UNKNOWN, e.what());
    } catch (...) {
        set_error(Error::UNKNOWN, "Unknown exception occurred");
    }
}

gaussian_blur_fft()

void img2num::gaussian_blur_fft	(	uint8_t *	image,
		size_t	width,
		size_t	height,
		double	sigma
	)

get_last_error()

Error img2num::get_last_error ( )

inline

Definition at line 13 of file Error.h.

                              {
    return last_error;
}

get_last_error_message()

const std::string img2num::get_last_error_message ( )

inline

Definition at line 16 of file Error.h.

                                                {
    return last_error_message;
}

invert_image()

void img2num::invert_image	(	uint8_t *	ptr,
		int	width,
		int	height
	)

kmeans()

void img2num::kmeans	(	const uint8_t *	data,
		uint8_t *	out_data,
		int32_t *	out_labels,
		const int32_t	width,
		const int32_t	height,
		const int32_t	k,
		const int32_t	max_iter,
		const uint8_t	color_space
	)

labels_to_svg()

std::string img2num::labels_to_svg	(	const uint8_t *	data,
		const int32_t *	labels,
		const int	width,
		const int	height,
		const int	min_area
	)

threshold_image()

void img2num::threshold_image	(	uint8_t *	ptr,
		const int	width,
		const int	height,
		const int	num_thresholds
	)