Edge Detection

Last time around we were able to detect edges and link them in order to detect stems and serifs. In the meantime I have made another nice picture of the glyph ‘C’ with its segments:

The last thing we need to do before we can actually hint our glyphs is to detect edges. Edges are sets of 1 or more segments that are positioned (approximately) at the same position. For the vertical direction and the glyph ‘M’ this would look like this (every edge marked with another color):

These edges are then associated with our Blue Zones (where possible). Later we will move these edges around to fit on the grid (rather than moving single points).

Next time it will become interesting: Then we will start the actual grid-fitting process.

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