API Reference Overview

Img2Num provides bindings for multiple languages. Choose the one that fits your workflow:

Language	Docs
	JS API Reference
	C++ API Reference
	C API Reference
	Python API Reference

Common Concepts Across All Bindings

All APIs share these core concepts:

1. Bilateral Filtering — Smooths noise while preserving edges.
2. K-Means Clustering — Reduces the palette to k representative colors.
3. Contour Tracing — Detects boundaries between color clusters.
4. B-spline Simplification — Fits smooth quadratic curves to contours.

Shared Parameters

Parameter	Type	Default	Description
sigma_spatial ($\sigma_{s}$)	float	3	Bilateral spatial sigma
sigma_range ($\sigma_{r}$)	float	50	Bilateral range sigma
num_colors / k ($k$)	int	16	Number of clusters
max_iter	int	100	K-means iterations
min_area	int	100	Minimum contour area
color_space	int	0	0 = CIE LAB, 1 = sRGB

Pipeline Flow