Fig. 4.

(1) We start with pictures as processed for perimetric complexity (i.e., white on black, pnm format, square pictures of 500 by 500 pixels). (2) These pictures are split vertically into two halves (of 250 by 500 pixels). (3) They are padded on the side on which the character is cut – i.e., the “inner side” of the initial picture, to a final size of 300 by 500 pixels. All other steps required for the pictures to be fitted for algorithmic complexity measurement were then applied (i.e., reversing colors so that the character is in black on a white background, applying the potrace algorithm for vectorization). This figure illustrates the process by using character 1E90F from the Adlam [Adlm] script.