pygame image get height
width = surface.get_width()
height = surface.get_height()
#Example
import pygame
imageInput = pygame.image.load("test.png")
#Loop through every pixel in the image, and print the colour at that position
for y in range(imageInput.get_height()):
for x in range(imageInput.get_width()):
print (imageInput.get_at((x, y)))