电子科发女学光电科学与工程学院 SCHOOL OF OPTOELECTRONIC SCIENCE AND ENGINEERING OF UESTC 3,2 Some Basic Intensity Transformation Functions Agenda 1.Image Negatives 2.Log Transformations 3.Power-Law(Gamma)Transformations 4.Piecewise-Linear Transformation Functions 1. Image Negatives  2. Log Transformations  3. Power-Law (Gamma) Transformations  4. Piecewise-Linear Transformation Functions 3.2 Some Basic Intensity Transformation Functions Agenda