CODE EXAMPLE FOR PYTHON

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)))