Dee,

Welcome!

I'm sorry to say I don't know much about looming. I did it as a kid (back when the earth's crust was still cooling ) and though I tried again about 10 years ago, I couldn't get the hang of it again. Next to knitting with sticks, looming felt so awkward to me, as it hadn't when I was not yet a knitter.  But I do hope someone here can give you the information you're looking for! I think it's a lovely idea to use an image to make a loom pattern!