Thresholding (image processing): Difference between revisions

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* '''Spatial''' methods [that] use higher-order probability distribution and/or correlation between pixels
* '''Local''' methods adapt the threshold value on each pixel to the local image characteristics. In these methods, a different T is selected for each pixel in the image.
*'''Hybrid''' methods use both global and local threshold value and adapt each pixel value based on both local and global image characteristics.<ref>{{Citation|last=Sokratis|first=Vavilis|title=A Hybrid Binarization Technique for Document Images|date=2011|url=http://dx.doi.org/10.1007/978-3-642-22913-8_8|work=Learning Structure and Schemas from Documents|pages=165–179|publisher=Springer Berlin Heidelberg|isbn=9783642229121|access-date=2019-04-28|last2=Kavallieratou|first2=Ergina|last3=Paredes|first3=Roberto|last4=Sotiropoulos|first4=Kostas}}</ref>
 
==Multiband thresholding==