Multiple If’s with Images

We can use multiple if’s to reduce the number of colors in an image. Let’s say that if we have a little bit of each of red, green, and blue, we want to make each of them zero. If we have more, we set them to a mid-range value like 120. This is called posterizing because it reduces all the colors in a picture to a small number of colors – like the ones you might use if you were making a poster.

Rewrite the code for posterizing an image using if and else rather than multiple if’s. Test that it still works correctly.

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