GIMP is the open source (free) equivalent to Photoshop. So there isn't any excuse not to try this project! If you've already got GIMP downloaded and operational, then all you need is a photo and less than 30 minutes!
Since we're creating our image on a 8.5 x 11.0 letter, you can easily translate this project into a bound collected works. Or just post your image to any profile for your own unique avatar!
Step 1: Preparing the Image
1. File>Open>Select image to manipulate.
If necessary, Image>Transform>Rotate by necessary degrees.
2. Using Rectangle Select Tool select area of image* to be traced.
3. Copy area to clipboard (Ctrl + C).
4. File>New>Choose US Letter.
5. Paste image (Ctrl + V) to New Untitled Image.
Now is a good time to Title (Save) your project!
6. Layer>Scale layer
If image taller than wider, enter 11 in height field.
If image wider than taller, enter 8.5 in width field.
The other field with auto adjust.
Click Scale button.
Step 2: Tracing the Image
1. Create New Layer.
Layer fill type Transparency (default).
Naming the Layer "trace" is helpful.
Be sure the new layer "trace" is highlighted.
2. Select Pencil Tool.
Choose brush size based on thickness of line you prefer.
For example, Brush (07) lines will appear as 07 lead when printed.
3. Begin "tracing" the important lines of the image.
TIPS: Be sure to save your work occasionally.
Use Zoom Tool for more precision.
Step 3: Numbering
1. Once entire image is traced to preference, Remove visibility from pasted layer.
This is done by deselecting the "eye."
NOTE: Only the tracing should remain. This should resemble a line drawing.
2. Select the Text Tool.
Set font & size. Try 75. Smaller may be necessary depending on detail of trace.
3. Click on an area of the trace to be numbered. Enter # for eace area.
TIP: 1-5 color regions works best. If using a color photo, try Posterizing it before tracing as follows.
Colors>Posterize. Try 3-10 levels.