Alpha v1.7

Added 2 Level Mode TwoLvFilter() in file MusicScoreProc.py, which can better process grayscale printings. The principles are similar to StrongEnhance().

Added corresponding function in the main program LoadScanPDFMain.py.

Alpha v1.6

v1.6 alpha

Added reset_dpi.py program, which can despeckle and reset dpi 0/1 bitmap PNG files in batch.

The following changes are made regarding LoadScanPDFMain.pyandMusicScoreProc.py:

• Check for Temp folder and Output folder before running program, making deleting them unecessary. If files in folders don't meet requirements, exit the program with error message. The process is listed below:
  

1. When Temp folder exists, and contians all .jpgfiles needed (actually only detecting first and last file), do not read PDF.
2. If either folder exists, and is empty, don't create the folder again.
3. If either folder exists, but does not meet requirement above, exit with error.

• Added a operating mode in RotateByStraightLine function。2is text mode, which is slower, but better for pure text. 0is the default mode in previous versions. 1is automatic, will run text mode if angle is 0after default mode. It is recommended to use2 after confirming pages with texts. It is not recommended to use1.
• Default resolution is no longer 4000x5400, and is changed to4500x6000. This can fit larger scores, but will leave wider margins for regular scores. Added a High Resolution preset，in which DPI and resolution are 1.5times the new default. (Therefore both can fit to the same PDF) This is better for full score, but will result in larger file size. There's no need to use such preset for regular piano score.

Alpha v1.5

The following changes are made regarding LoadScanPDFMain.pyandMusicScoreProc.py:

• Added an input DPI function. For A4 or 8.5x11in scans that are not 600dpi, adjust this number.
• Added an alternative hough line detection for RotateByStraightLine. If input resolution is too low, do not scale down. Decrease start_resolution and minLineLength.
• Added an rotation option for odd/even page.
• Added a Pre-crop function for scanners with pre-exsisting white edge.
• Other changes that improve readability. (E.g. Merging StrongEnhance() into MusicScoreProc.py, removing some comments etc.)
  The following changes are made regarding RemoveFingeringToolkit.py:
  
• Added a GenerateEraseMask() function. Currently not used in the main program. It will mark all numbers except 1, which can help erase fingering. Merging into the main program will happen in a later update.

Alpha v1.4

The following changes are made regarding RemoveFingeringMain.py:

• Previously, thumbnail is changed and these changes are reflected to the original image. This will cause the final image to be inaccurate. Now, no direct changes are made to the thumbnail. The original image is changed, and the thumbnail is updated.
• The thumbnail will automatically fit the size of screen (Under DPI Aware in Windows)
• Refresh rate is changed for window display . Previously, the image refreshes every 10 ms. Now, the image only refreshes when a change is made.

Alpha v1.3

• Added a strong enhance feature to partially restore blurry scans.
• Added a new program RemoveFingeringMain.py to allow users manually remove fingering.
• Also 2 abandoned files of testing new functionality. They are uploaded for backup purpose, and are not recomended to use.

v 1.2 Alpha

Significantly improve the efficiency of rotation and despeckle.
Now there's no need to worry about disabling despeckle for runtime.
Special thanks to Flrrr https://github.com/Flrrr?tab=repositories
for implementing most part of the new despeckle function.

Also imported PIL just to change final DPI to 600. This cannot be done with OpenCV

Alpha v1

Basic functionality included.
See more in project description