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ICIP
2008
IEEE
14 years 6 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
14 years 6 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