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HP Restores Creased Photos With Flatbed Scanners
An anonymous reader writes "Scientists at HP have developed a technique to detect creases in photographs using standard, unmodified flatbed scanners. Once correctly scanned into a computer, software can determine where the photograph's defect is, and artificially correct it to remove any trace of a crease or fold. The result is a spotless JPEG scan from a creased photo, with absolutely no modified hardware and no technical know-how required on the part of the user." They're using multiple light sources to do this, in a way that reminds me of last year's description of 3D image creation using an ordinary digital camera.
In the article it says that they use an unmodified scanner, but later on they claim to control the lights of the scanner individually... how is this not modifing the hardware?
My memory has just been sold.
Xerox did this already a few years back. And Google does it for their book scanning by projecting a laser grid and determining the 3d surface curvature of the book.