PDF processing in Photoshop (feedback please)

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PDF processing in Photoshop (feedback please)

Postby Silere » Wed Jun 21, 2017 8:35 pm


A few days ago I got eye fatigue from studying the Rachmaninoff's Piano Trio No. 1. I used the only available edition on IMSLP at the time. To rest, I decided to edit the score with the software I already got on my computer.

Since I could not find a method that I liked, I created my own and recorded a tutorial for YouTube:
Tutorial - Fix a scanned music score with Photoshop

I would like to share my method and have feedback from this community to make it better. I would like an algorithm to completely remove the noise in a scanned music score and do not require any human intervention.

First a comparison:
After noise reduction

The problem with the original score is the high amount of noise on the scan.

The algorithm I used to greatly remove the noise is:

  1. Convert the image to grayscale mode
  2. Duplicate layer
  3. Apply Dust & Scrtches filter
  4. Set the filtered layer to lighten
  5. Convert the image to bitmap mode
  6. Save as a PDF Grayscale with no compression

For me, the advantage over the method documented in IMSLP that uses Photoline software, is that I didn't have to install any extra software in my computer. Also, once I had the algorithm, I could just use Batch processing to filter the whole score in seconds (as shown at the end of the tutorial).

The original score is 2.13 MB in size. The resulting one ended in 1.66 MB. I think the reduced size, with no apparent loss in quality, is also really valuable.

Please feel free to download and critique the processed version I uploaded on the Piano Trio page

(Also, I would be glad if someone corrected my grammar in "Misc. Notes". I could not find how to edit the page)

Thank you.

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