Idea: Color Photos with the Game Boy Camera
Note:I wrote this article in 2001. At the time, Nintendo had a camera add-on product for the Game Boy that took low-quality black and white pictures. Small, cheap, color digital cameras were not nearly as prevalent as they are now. I originally posted this on my photography website. There has been a link to the article from Ironic Sans in the sidebar on the front page, but I’ve decided to integrate it as a regular Ironic Sans entry and remove the sidebar link.
All colors of the visible spectrum can be broken down into combinations of just three colors: Red, Green, and Blue. In fact, if you look at your computer screen under a magnifying glass, you will see that it is made up of tiny red, green, and blue lights that are varied in combinations to create all the colors you see on your screen.
Every color picture can be broken down into three separate black-and-white pictures which represent the amounts of red, green, and blue that are used to make up that picture, as in this example:
If a color picture can be made from three black and white pictures, I could use the Game Boy Camera to take three separate black and white pictures (using filters to capture the red, green, and blue values of a scene) and then use the computer to combine them into a single RGB image. A more elaborate version of this process is commonly used in high-end digital cameras used by large photo studios, so I saw no reason why it wouldn’t also work with the Game Boy Camera. [*note: three-pass digital cameras aren’t really used as often now in 2007 but they were at the time I wrote this]
I picked a location in my apartment where I could make sure the Game Boy could sit absolutely still (so I could take three identically-posed pictures) and picked a small colorful object to photograph. One of the first objects I tried photographing was a Snapple bottle, Kiwi-Strawberry flavored, with a colorful green and pink label.
To capture only the red light reflecting off the Snapple bottle, I was going to need a red filter that I could place in front of the Game Boy Camera, so that only red light would reach the lens. I went to a local photo-supply store and obtained a free book of filter samples, containing dozens of various colored filters. I picked a red filter and held it in front of the lens and took a picture. I repeated the process with a green filter, and then a blue filter, careful not to move the camera or the bottle in between shots.
Using the Game Boy Camera PC Link from Mad Catz, Inc., [no longer available in 2007] I transferred the images to my computer, where I ended up with these three images:
I thought I had done everything right, but when I pulled the images into Photoshop to create my RGB composite from these three images, I came up with a picture that looked like this:
Obviously, I didn’t have the full color photograph I had anticipated, although there was a hint of color in the image. If my theory was correct, though, it should have worked. A little bit of research on the internet brought me to the cause of the problem. It turns out, the light-sensitive chip inside the Game Boy Camera (it’s called a Mitsubishi M64282FP chip) is sensitive to infrared light, which isn’t visible to the human eye. While I was succesfully filtering out red, green, and blue light, infrared light was still reaching the lens of the camera.
This was easily provable by pointing my Game Boy Camera at my TV remote control and pushing a button on the remote. Even though nothing seemed to happen that I could see with my eyes, I could see the front of the remote light up on the Game Boy screen! I would have to filter out the infrared light reaching the Game Boy Camera in order to get my full color photograph.
Apparantly, most digital cameras are sensitive to infrared light, but contain a built in “hot mirror” filter, which blocks infrared (something I learned through a little research on-line). So I went to my local camera shop and bought a hot mirror filter (which was more expensive than I thought it would be, but I was now determined to take color photos with my Game Boy Camera, so I bought it anyway). I held it in front of the Game Boy Camera and repeated the remote control test, and could no longer see the light of the remote light up. I had a good feeling about this. I attached the hot mirror filter to the front of the Game Boy Camera using masking tape, and picked a new test subject to photograph: a Garfield Pez Dispenser.
Repeating the three-pass process of photographing an object with the red, green, and blue filters, I came up with these images:
Already I had a good feeling, as these images were more in line with what I was expecting than with the previous tests. So I again transferred them to Photoshop, created a composite RGB image, and this was the result:
The World’s First color photograph taken with the Game Boy Camera!
October 31, 2001 - Okay, I know that they are not the most exciting subjects, but the following photos (plus the Pez Dispenser above) are the World’s First color photos taken with the Game Boy Camera. I just shot whatever was around to be used as test subjects.
November 10, 2001 - My first outdoor attempts. First off, notice the vignetting in these images (the halo that seems to be around the pictures). This is caused by the camera itself reflecting in the Hot Mirror filter. I’ll have to use a black magic marker or something to make the GB Camera black so it doesn’t reflect (I think it wasn’t a problem indoors because the camera didn’t have such bright light on it). In the picture of the trees, the blue sky came out nicely peeking through the top. I’ll have to solve the halo problem before my next attempts.
[That’s it. I never got the motivation to shoot any others in this series, as cheap color digital cameras became more prevalent, and the novelty of taking low quality color pictures with a cheap handheld device wore off].