histogram_utils.h File Reference

Somewhat generic histogram manipulation utilities. More...

#include "image.h"
#include <vector>

Go to the source code of this file.

Functions
std::vector< int >	satdump::image::histogram::get_histogram (std::vector< int > values, int len)
	Get histogram of a buffer.
std::vector< int >	satdump::image::histogram::equalize_histogram (std::vector< int > hist)
	Equalize an histogram (stretch to normal distribution)
std::vector< int >	satdump::image::histogram::make_hist_match_table (std::vector< int > input_hist, std::vector< int > target_hist, int maxdiff)
	Make an histogram-matching table between 2 equalized histograms.

Detailed Description

Somewhat generic histogram manipulation utilities.

Function Documentation

equalize_histogram()

std::vector< int > satdump::image::histogram::equalize_histogram

(

std::vector< int >

hist

)

Equalize an histogram (stretch to normal distribution)

Parameters

hist	histogram to equalize

Returns

equalized histogram

get_histogram()

std::vector< int > satdump::image::histogram::get_histogram	(	std::vector< int >	values,
		int	len )

Get histogram of a buffer.

Parameters

values	to get the history of
len	length of the output histogram

Returns

histogram

make_hist_match_table()

std::vector< int > satdump::image::histogram::make_hist_match_table	(	std::vector< int >	input_hist,
		std::vector< int >	target_hist,
		int	maxdiff )

Make an histogram-matching table between 2 equalized histograms.

Parameters

input_hist	histogram to match from
target_hist	histogram to match to
maxdiff	Ignored (TODOREWORK?)

Returns

matching table LUT