[Feature request] thresholdAdjustment in other threshold.

[zvezdochiot]

Hi @vigri , @lightsilverberryfox .

https://github.com/ScanTailor-Advanced/scantailor-advanced/blob/b4d8638bf96c564f434e35803dfd0fc8a432a2c6/src/core/filters/output/BlackWhiteOptions.cpp#L15 :question: Maybe add thresholdAdjustment in other threshold (Sauvola, Wolf, EdgePlus and BlurDiv) as an additional regulator?

https://github.com/ScanTailor-Advanced/scantailor-advanced/blob/b4d8638bf96c564f434e35803dfd0fc8a432a2c6/src/imageproc/Binarize.cpp#L87 to

      if (int(grayLine[x]) < (threshold + m_thresholdAdjustment)) {

https://github.com/ScanTailor-Advanced/scantailor-advanced/blob/b4d8638bf96c564f434e35803dfd0fc8a432a2c6/src/imageproc/Binarize.cpp#L188 to

      if ((grayLine[x] < lowerBound) || ((grayLine[x] <= upperBound) && (int(grayLine[x]) <  (threshold + m_thresholdAdjustment)))) {

and so on...

And add a slider to all widgets of thresholds?

PS: lowerBound and upperBound it is also desirable to use in all thresholds.

Complite BinarizationOptionsWidget for all threshold: BinarizationOptionsWidget.ui.gz

[vigri]

@zvezdochiot can I close this one? As to my understanding, this is "fixed" with #48

[zvezdochiot]

https://github.com/ScanTailor-Advanced/scantailor-advanced/commit/b0788fc5055ab8f7f7a6b5d727dd13eea1006212