Image Warpingand Compositing

Table of Contents

Image Warpingand Compositing

Overview

Overview

Image Warping

Mapping

Example Mappings

Example Mappings

Example Mappings

Other Mappings

Image Warping Implementation I

Forward Mapping

Forward Mapping - NOT

Forward Mapping - NOT

Image Warping Implementation II

Reverse Mapping

Resampling

Point Sampling

Triangle Filtering

Gaussian Filtering

Gaussian Filtering

Image Warping Implementation

Overview

Image Compositing

Blue-Screen Matting

Alpha Channel

Pixels with Alpha

Compositing with Alpha

Semi-Transparent Objects

Opaque Objects

Composition Algebra

Over Operator

Image Composition Example

Summary

Email: cs426@cs.princeton.edu

Home Page: http://www.cs.princeton.edu/courses/cs426