Creating an Eye Logo
Overview
One of the first things I wanted to take a stab at with this site was making a little logo image. Since the site’s name is REM state, a closed eye immediately came to mind as an appropriate symbol.
Creating the Logo
Since I have two perfectly functioning eyes (with corresponding eyelids), along with a digital camera, acquiring the image was fairly straightforward. The process went something like this:
- Turn off all the lights, except for one lamp
- Put my camera in full-manual mode
- Zoom the camera all the way in
- Manually focus the camera to 0 (right in front of the lens)
- Stick my hand under the light about where my face will be
- Move the camera so my hand is in perfect focus
- Have the camera meter my hand
- Adjust shutter speed & f-stop until the meter indicates good exposure
- Move my face under the lamp to take the place of my hand
- Take lots of shots
An additional step—setting the white balance—was omitted, because I was using a full-spectrum lamp. If you plan on using a light source with a tint, and you don’t want the tint to show up, you’ll need to do something about the white balance. My camera handles white balance semi-automatically; if yours doesn’t, you’ll have to figure out how to do it in post-processing.
Processing the Images
Once the pictures were shot, I pulled them off the camera and onto my computer. Here, I opened them all up in an image viewer, and picked out the one I thought looked best. I then opened that picture up with the Gimp, and proceeded to do the following:
- Crop out just the section I wanted
- Set the color mode to grayscale
- Set the color mode back to color
- Use the colorize dialog to duo-tone the picture
- Scale the picture down to a reasonable size
- Save (over the original—d’oh!)
The fact that the duo-tone color matched with my palette was a total fluke. Naturally, if I were to do this again, I would have used the palette to determine what color to use. The idea for making the picture duo-tone came from a duotone article on the BioRust site.
Generating the Favicon
The favicon was generated directly from the web image. This process was a snap, and consisted of cropping the image tighter, and then scaling it down. Note, however, that I had to be mindful of how I cropped: the final image needed to have a 1:1 ratio between width and height. Since the eye is longer than it is wide, I couldn’t crop the height at all—I could only trim the width to try and get as close to a 1:1 aspect ratio as possible. Once the cropping was done, I resized the image to 16×16 pixels, and saved it in the appropriate format.

