Problem 1: The function copyHalf(page 106 in the book) copied the top half of the picture into the bottom half. THE new function copyUpHalf that copies the bottom half of the picture into the top.

Problem 2: Write THE function to "filterBlueTint" a face. Write THE function that accepts a picture as input. If any pixel has a blue value less than 150, then set that pixel's color to white. Try it on a picture of a face and see what you get.