منابع مشابه
THE PHOTOGRAPHIC EYE BY A. HYATT MAYOR Curator of Prints
Though magnifiers, drawing machines, and cameras have been used in making works of art for a long time, their connection with technique and style has received only passing mention. Yet devices that affect the way we see are bound to affect style in art, since style both reflects and conditions ways of seeing. Everybody's seeing is constantly changing. The hat 1/ that startled at Easter looks no...
متن کاملRemoval of Semi-Transparent Blotches in Old Photographic Prints
In this paper a new algorithm to restore semi-transparent blotches (or water blotches) in vintage photographic prints is proposed. It works in two steps: the first stage is based on an additive/multiplicative model the optimal parameters of which are searched for around the area to be restored. The second one performs an interpolation along the gradient direction on the contour. The results obt...
متن کاملOn the detection of cracks in photographic prints
A method for the detection of cracks in old paper photographs is presented. Cracks in photographic prints usually result from a folding of the paper support of the photograph; they often extend across the entire image, along a preferred orientation. A first clue we exploit for crack detection is the fact that old prints have a characteristic sepia hue, due to aging and to the type of processing...
متن کاملVirtual restoration of vintage photographic prints affected by foxing and water blotches
We propose a new algorithm to digitally restore vintage photographic prints affected by foxing and water blotches. It semiautomatically recovers the defects utilizing the features of the stains. The restoration process enhances the residual image information still present in the area. It is composed of three different steps: inpainting, additive-multiplicative (A-M) modeling, and interpolation....
متن کاملReflection Density in Photographic Color Prints : Generalizations of the Williams – Clapper Transform
above-mentioned approximate expressions with certain values in the expression taken as free parameters. 4 A third line of research has been the modification of the Williams–Clapper transformation by adding an additional empirical term to the reflectance that controls the maximum reflection density. 3–8 This term is usually attributed to light reflected off the first-surface (gelatin– air interf...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific American
سال: 1918
ISSN: 0036-8733
DOI: 10.1038/scientificamerican11231918-326supp