Image

• PImage
• createImage()

Loading & Displaying

• image()
• imageMode()
• loadImage()
• requestImage()

Pixels

• blend()
• copy()
• filter()
• getPixel()
• setPixel()

Example

from processing import *

pikachu = None
ball = None

def setup():
    global pikachu, ball
    size(400, 400)
    colorMode(RGB, 100)
    # you may want to change the image url below
    pikachu = loadImage("http://www.avatars101.com/avatars/Pokemon/301BE8845F43838DE7A6B6DFEB2B963E/Pikachu.gif")
    ball = requestImage("http://vignette4.wikia.nocookie.net/pokemon/images/4/46/Timer_Ball.png")

def draw():
    background(0, 200, 200)
    image(pikachu, 100, 100)

    if ball.width != 0 and ball.width != -1:
        image(ball, 200, 50, 65, 65)    

run()

Reference

• Processing.org