Turn Any Photo, Picture, or Image Into a
Crochet Pattern

SC graphghan is the right choice for photo portraits. Single crochet produces a flat, even fabric where each stitch is nearly square (with the 1.2:1 ratio applied). At worsted weight, you get 16 stitches per 10cm — enough resolution for a recognizable pet face at 100+ stitches wide. The downside: SC is the slowest technique per square centimeter. A 120×150 blanket is 18,000 stitches — typically 40–100 hours. It's a commitment, but the result is a photographic-quality portrait at blanket scale.

C2C (corner-to-corner) works diagonally — each 'stitch' is actually a 3-DC cluster worked into the corner of the previous cluster. The diagonal orientation produces naturally sharp diagonal color edges and a slightly different visual texture than SC. C2C is faster than SC and the diagonal joins give it structural rigidity. The 0.7:1 DC ratio means C2C is wider-than-tall — a 100×100 C2C blanket is wider than it is tall. ArtPatt applies this ratio correction automatically so your starting chain count produces the correct finished proportions.

The color count determines both pattern complexity and yarn cost. Each unique color = one yarn purchase + one bobbin to manage per row. For a lap blanket at 12 colors and $9 per skein average, yarn cost is roughly $80–120. At 16 colors it's $110–160. At 20 colors it's $140–200. Beyond 16 colors, the row-by-row color management becomes demanding — at any point in a row you may need to pick up 8–12 separate bobbins in sequence. Most experienced graphghan makers cap at 14–16 colors for this reason.

Start with 12 colors and look at the preview critically. If the image looks flat and blobby with no gradient detail, increase to 15 or 16. If the pattern looks cluttered and busy with many tiny patches, reduce to 10. For pets: 12–15 is the sweet spot for most cats and dogs. For portraits of people: 14–18 captures skin tone gradients. For bold geometric designs or logos: 4–8 colors is often enough and dramatically easier to stitch.