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A Secret-Sharing-Based Method for Authentication of Grayscale Document Images via the Use of the PNG Image With a Data Repair Capability.
Che-Wei Lee
Wen-Hsiang Tsai
Published in:
IEEE Trans. Image Process. (2012)
Keyphrases
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gray scale
image data
document images
scanned images
inverse halftoning
test images
template matching
scanned documents
pixel values
gray level
edge detection
grayscale images
gray value
multiscale
binary images
digital images
high quality
mathematical morphology
halftone images
high resolution