Research
How Offline Stroke Validation Works, Stroke by Stroke
Checking a handwritten character needs no cloud or neural net. Geometry, stroke order, direction, bounding box, centroid, does the job on-device and offline.
Lawrence Arya··6 min
Essays
Can an App Validate Yan-Style Calligraphy?
Can software grade your calligraphy against a master's style like Yan Zhenqing's? It can check correct form, but style conformity is a connoisseur's judgment.
Lawrence Arya··5 min
Essays
Do Apps Wrongly Penalize Natural Running Strokes?
Fluent native writing connects strokes the way running script does, and rigid apps flag that as an error. A good tool should grade stroke order and structure, not demand robotic separation.
Lawrence Arya··5 min
Essays
What Should a Writing App Validate? Offline and On-Device
Useful validation checks that you produced the character correctly from memory, stroke order and structure, not that you traced a nice shape. And it can do that on-device, offline.
Lawrence Arya··5 min