Image to RLE
Black or white on cells only: live=black   live=white
  1. Copy the image to the clipboard
  2. Paste the image below
  3. Set border width, grid line width and cell size (in pixels)
  4. Click the Display RLE button
If the pattern in the viewer does not match the image, adjust
the settings and click Display RLE again. Repeat as needed.

paste image here

border width:   grid line width:   cell size: