SAMJHO
Smart Scan paper ka border khud detect karta hai ('Document detected — drag corners to adjust'), par corners hamesha editable hain — final crop wahi hota hai jo aap set karte ho.
FIX (usi screen par):
- Chaaron kono ke handles pakad kar document ke asli kono par drag karo.
- Detection bilkul bhatak gayi ho to 'Reset' dabao — poora frame select ho jayega, phir corners andar khींch lo.
- 'B&W' sirf filter hai (photo→document look) — crop nahi badalta; original chahiye to 'Original' par wapas aao.
ACHHE DETECT KE LIYE (prevention):
- Paper ko DARK/plain background par rakho (table ka gehra hissa, file cover).
- Poora page frame me lo, kona kata hua na ho.
- Shadow aur haath page par na aaye; roshni seedhi ho.
- Mud-tude page ko seedha karke rakho.
EDGE CASES
- 'Auto-detect unavailable — set corners manually' aaye to engine load nahi hua — manual corners phir bhi kaam karte hain.
- Mobile app me bhi yehi screen (same engine) hai — controls same hain.
- Confirm ke baad file normal upload pipeline me jaati hai (compress + GPS/date stamp) — scan se quality kharab nahi hoti.