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ICIP
2008
IEEE
13 years 11 months ago
Supporting range and segment-based hysteresis thresholding in edge detection
One of the important steps in gradient-based edge detection is thresholding, e.g., hysteresis thresholding in the Canny detector. Traditional approaches use gradient magnitude as ...
Lu Wang, Suya You, Ulrich Neumann
ICDAR
2009
IEEE
13 years 11 months ago
Manuscript Bleed-through Removal via Hysteresis Thresholding
Many types of degradation can render ancient manuscripts very hard to read. In bleed-through, the text from the reverse, or verso, side of a page seeps through into the front, or ...
Rolando Estrada, Carlo Tomasi