Make A Blank Bannor Or Button

With ImageMagick

For this lesson, I start with this image:

1. Enter the image into ImageMagick.
2. Go to Draw. For Primitive, select ellipse. For coordinates, enter (w/2),(h/2) (w/2),(h/2) 0,360. For this example, that would be
   200,50 200,50 0,360 For Fill color, enter none. For Stroke color, enter the background color of your page and for Stroke width, enter 4

Drawing doughnuts

1. Go to Draw again. Add the Stroke width that you used to make your ellipse to the two radii (the two middle numbers in the Coordinate box) then add 50% to the Stroke width and use the same Stroke color that you used before. The sequence will look something like this:
   
   Coordinates
   200,50 200,50 0,360
   Stroke width 4
   
   Coordinates
   200,50 204,54 0,360
   Stroke width 6
   
   Coordinates
   200,50 210,60 0,360
   Stroke width 10
   
   Coordinates
   200,50 220,50 0,360
   Stroke width 15
   
   Coordinates
   200,50 235,65 0,360
   Stroke width 22
2. Repeat till you have a solid background.
3. You can transparify it now but you might have to Fuzz it at 5-10% to get rid of all the background color and you might end up clipping parts of the forground.

Created by DJ Mike from Santa Barbara