Took the scanner camera down to Pikes market during one of their festivals. This was the first time I had the camera outside, and the results were encouraging. You can see all the pics here:

A couple things to note:

I turn off course, fine, light and dark calibration. I use the alt calibration option. I think the per-pixel calibration that is stored in DRAM during the alt calibration is a bit off for the pixles near the top of the image. for example, see this image:

You can see the light band of pixels at the top of the image. This gets significantly better when stiwching from grayscale to color images. The color images come out very very grey. There are two things that I want to look into further:

• Better understanding/knowledge of the calibration. I think this will significantly improve image quality.
• Ensure that I’m operating the scanner ship in 14 bit mode, and that I’m getting out all 14 bits. If the chip is in 14 bit mode then there is no calibration data stored in DRAM (the space is used for pixel data.

Matt

Categories: Scanner Camera
6 Comments »