1. Purpose 2. Pixel methods 2.1. Static methods 2.1.1. AVERAGE 2.1.2. ACTIONAVG 2.1.3. MOSTUSED 2.1.4. LAST 2.1.5. FIRST 2.1.6. SOLID 2.1.7. FIRSTNMOST 2.1.8. LASTNMOST 2.1.9. LEASTUSED 2.2. Animated methods 2.2.1. CHANGELOG 2.2.1.1. Motion blur 2.2.2. LOOPINGLOG 2.2.3. LOOPINGAVG 2.2.3.1. Motion blur 2.3. Summary 3. Masking methods 3.1. BLACK/BLANK/CENSOR 3.2. HOLE/ALPHA/TRANSPARENT 3.3. DELOGO/B