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4lex4 / scantailor-advanced

ScanTailor Advanced is the version that merges the features of the ScanTailor Featured and ScanTailor Enhanced versions, brings new ones and fixes.
GNU General Public License v3.0
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ImageThresholdBlur #196

Closed zvezdochiot closed 12 months ago

zvezdochiot commented 1 year ago

Hi @4lex4 .

There is an ImageThresholdBlur method that is practically a transition from Otsu (BiMod) to Sauvola {0.0 ... 1.0}: https://github.com/ImageProcessing-ElectronicPublications/stb-image-djvul/blob/main/src/threshold.h .

This method only requires a Gaussian filter, a divide two images operation, and an Otsu threshold (BiMod).

Implementing it would expand the threshold adjustability (slider from 0.0 (BiMod or Otsu) to 1.0 (~Sauvola)).

If necessary, I could adapt the code of this threshold for ScanTailor, but I will not undertake to change the interface and the project file.

leonleon33156 commented 1 year ago

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zvezdochiot commented 12 months ago

Resolved. STEX: 0.2023.07.27: threshold.