Level-Set Visualizer

Visualize image segmentation based on level set method.

Table of contents

• Application Demo
• Introduction
• Built With
• Installation
• Acknowledgments

Application Demo

Level-Set Visualizer – Demo (YouTube)

Introduction

This application perform image segmentation by following steps:

• Load Image & Start Level-Set Mode
• Preprocessing
• Initial Contour
• Start Evolution

Preprocessing

• Edge detection by Anisotropic Diffusion, Gaussian Gradient, Sigmoid Scaling
• Control over some edge detection parameters

Initial Contour

• Done by Fast Marching, support multiple bubbles

Start Evolution

• Support media-like control (play/pause/step/rewind) & anchor iteration
• Control over 3 parameters based on Geodesic Active Contour (GAC)

Built With

• ITK 4.12 - Image Processing Algorithms (w/ module ITKVtkGlue)
• VTK 8.2 - Image Display
• Qt 5.6 - GUI framework

Installation

Before running the following command, modify QT_HOME, ITK_DIR, and VTK_DIR in CMakeLists.txt

$ mkdir build
$ cd build
$ cmake ../src
$ make -j4

Acknowledgments

• This application is inspired by ITK-SNAP
• Processing pipeline & test.png modified from ITK GAC Example
• heart.png modified from ICONFINDER

MIT License (2019), Wen-Ya Lin