contours2heightmap (c2h)

A simple CLI tool to convert contour line bitmap images into heightmaps.

Assumes a topographic interpretation where outer contours represent lower elevations and inner contours represent higher elevations.

Only supports simple images: all contours must be closed, non-overlapping, and with clear separation.

Example

c2h --help
c2h input.png output.png --fill-mode linear --color-mode greys

Build from source

git clone https://github.com/Bowen951209/contours2heightmap.git
cd contours2heightmap
cargo build --release

Installation

• Install using Cargo from crates.io:

  cargo install contours2heightmap

• Download a release from GitHub Releases.