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+**Document Scanner**
 ------------------------------------
-*Document Scanner"
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+
+**How to use**
+
+1. Put images into images folder.
+2. Run Open_CV Scanner.ipynb.
+3. Choose O X whether to use mouse input.
+4. After drag blue points, use spacebar to confirm.
+5. Images will be in modified folder.
+
+----------------------------------------------
+
+
+--------------------------------------------