Luckily I was able to acquire this and it was on sale. I bought my door viewer a couple days ago but I was quite busy to do any of this because of summer class. I also decided to use the IR hacked camera I did a while back due to the lovely effects it can do. However in my case I used a digital point-and-shoot camera, since I want to see the outcome immediately. We would only need to cover up the lens of the camera with a size compatible peephole door viewer. You can choose old analogue cameras because the process of achieving the effect is applicable to both analogue and digital. However, that is how image resampling has to be performed.WHAT YOU NEED? 1) Any old, obsolete digital or analogue camera. Note that deriving the inverse fisheye transformation might be a little tricky, depending on the equations. with the next integer pixel coordinates, until the intensity of all pixels of the fisheye image have been found. Use Bilinear Interpolation to estimate the intensity Is at coordinates (xs,ys), based on the intensity of the 4 closest integer pixel coordinates in the "starting" image (e.g.You obtain floating-point pixel coordinates (xs,ys) in the "starting" image (e.g. Find the corresponding point in the "starting" image, by mapping (xf,yf) into the "starting" image using the inverse fisheye transformation. You want to estimate the intensity If associated to these coordinates.
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