Next, I'll scan that in at 300 dpi using the "black and white drawing" setting. This gives me a huge image, but it is pure black or white (no shades of gray * ). Of course, this is well larger than my final will be and has a stair-stepped line, but it allows me to color it without that white anti-aliased halo around the linework. Once I color it, I'll shrink it down to final size.
Once I have the scan, I open it up in Photoshop.
First, I copy and paste the original onto a new layer, so I can preserve the original incase I mess up the copy.
Second, I use the wand tool to select all the white. Be sure the wand has anti-aliasing turned off, tolerance set to 0, and contiguous is turned on. With the white selected, delete it, so you end up with only the black lines. |