I scanned a calligraphy using color mode thinking I would capture more details, which I did along with much noise. Now, I would like to remove the background (white) and make it transparent. While doing so, it is difficult to keep some of the details. Appreciate any guidance on how to do this effectively, I have over 60 of these scan to process. Attached one example for illustration purposes.
Please note the details I would like to keep include the thin lines that fades into the supposedly white background. Image reduced for fast upload.