Color Photographs with Game Boy Camera

An anonymous submitter sends in: "For the first time, the Game Boy Camera has been used to take COLOR Photographs. It's the Game Boy Camera Color Photography Project." The previous slashdot story that this reminds you of is this one about digichromatography.

Comments

snooker robot

[Hieronymus Howard]

A few years ago (back in the 1980's I think), I saw a science show on british TV, where a group of Ph.D. (graduate) students were building a robot to play snooker. They only had a black and white video camera and needed some way of recognising the colour of the snooker balls. Their solution was to carefully detect the grey level of each ball. I thought at the time that a better solution would be to use 3 filters in this way (perhaps on a rotating wheel in front of the camera), which would have given them colour images from a black and white camera. Can I claim prior art? Maybe I should have patented the idea :-)

HH

Infrared photo... It is kind of cool.

[AtomicBomb]

I just come across a tutorial about near infrared photography. If the gameboy cam are IR sensitive, it will be quite cool. We can even build a "flashnight" with an array of remote control IR LEDs.

Next time I know how to take a close shot of the penguins without waking them up (I live somewhere in south hemisphere, within very long driving distance to a penguin colony..)

IR coolness!

[glebite]

Why not attach the gameboy viewscreen to sit in front of one eye and aim the camera forwards, attach some high-output IR LEDs to project out and run as a hacked/cheap nightvision?

Re:Techniques

[jwhyche]

I respectfully disagree. This is exactly what the spirit of hacking is about. Making a piece of computer equipment do something that its not ment to do.

Good Job

Would someone please mod me up? I need the karma :)

High precision scientific cameras...

[VDM]

... sometimes do the same, i.e., a motorized filter wheel placed in front of the CCD. No realtime acquisition, but very good for static/very slow subjects (i.e., microscope and telescope images). This because single CCDs are more precise/sensitive than 3CCD cameras.

With this technique you may also select other primary colours (i.e., CMY), and filter strange colour combinations.

You may find some picture of such weels for example at http://www.ghg.net/cshaw/filter.htm (applied to telescope observation).

You only really need two components

[yerricde]

It's possible to create reasonably convincing color with only two components: red and cyan. Try it. Turn off your NVIDIA video card's blue gun, or grab an image in GIMP or Photoshop and turn off the blue channel, and see that it affects the image very little (other than giving a yellow cast which can be fixed by copying the green channel into the blue channel). This works because the human eye isn't very sensitive to blue light.

I'm considering using this fact for image compression on a Game Boy Advance homebrew game.

Re:You only really need two components

[Uberminky]

You are correct, sir. Cyan is indeed the two colors, blue and green, together.

Whenever I'm making a color stereo anaglyph, I combine the red channel from one image, with the green AND blue channels of another image (effectively copying the cyan channel). This works because the anaglyph glasses have a red filter over the left eye, and a cyan filter over the right.

Get yourself some anaglyph glasses and check out some of my pics:

http://php.indiana.edu/~dgsharp/gallery.html

Or if you don't have any glasses you can see the non-anaglyph stereograms by crossing your eyes. As far as I know, the crappy little gallery I made has the only existing stereo images of The Matrix. :)

1930's Technicolor ®

[cmacd]

The very early Technicolor® process only used two colors, at the time it was hard to get pancromatic film. They shot two strips of film, though color filters and combined them for presentaion.