Voila! In about ten minutes, I'd made a personalized coloring page. Try it out and let me know what your kids think!
Step 12: Move the other sliders
Now drag the gray and the white sliders as far to the left as possible without moving the black slider. All of the gray tones should turn white, leaving a very clear outline in black and white. Play around with the sliders until you're happy with the outcome.
Congratulations! You've made your coloring book image!
Bio:I'm a UK-grown tinkerer with a background in medicine and engineering, currently working (well, playing) as an Artist in Residence at the Instructables Lab in San Francisco.
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