3.1. Digitization
In the traditional animation process, animators begin by
drawing sequences of animation on a paper with pencils,
one picture or ”frame” at a time. The pipeline’s input data
are images made by the traditional cel animation production
process. Those images are scanned from cel by a digital
process. It is assumed that original drawings contain homogeneous, non-textured lines drawn onto a white background
having black outlines. These requirements make the images
cleaning process easier because, in the final step, it will also
have black line drawings in a white background.
After the scanning process, each cel has registration
holes. Those small holes allow the cel to be placed on
pegs to ensure each cel aligns with the one before it. If
the cells are not aligned in such a manner, the animation,
when played at full speed, will look ”jittery.”