The character size of the camera module software can also be determined by the size based on the character font

Display specifications and anti aliasing specifications are calculated to determine.

1 rising line

2 Downline

3 cap line

4 baseline

H character height

W character width

Smin minimum stroke width

Maximum stroke width of Smax

P minimum character distance; for adjacent characters with parallel lines, P  sminwmin spacing; lowercase letter width "O"

M minimum perceptible distance, m  0.5  smint text line space, t  0.5  (smin  Smax)

Note: use formula (a.1), (A.2) or (A.3) to convert dimension h to angle value. The linear values of character height, h, character width W and stroke width s are used to obtain the following derived quantities:

⎯ average stroke width: savg = 0.5 * (smin + Smax)

⎯ character aspect ratio: w / h

⎯ stroke width according to character height ratio: S / h