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Formation of 2D images using X-rays
object-detector distance (ODD) by the equation SOD + ODD = SDD. Geometric unsharpness is caused by the X-ray generator not creating X-rays from a single point
Projectional_radiography
Image sharpening technique
Unsharp masking (USM) is an image sharpening technique, first implemented in darkroom photography, but now commonly used in digital image processing software
Unsharp_masking
Loss of spatial resolution in a radiographic image
types of unsharpness: geometric unsharpness, motion unsharpness and photographic or system unsharpness. Motion unsharpness is caused by movement of the patient
Unsharpness
Perception of image sharpness that is unrelated to actual resolution
negative (high acutance developers), or by optical means in printing (unsharp masking). In digital photography, onboard camera software and image postprocessing
Acutance
Distance between the nearest and the furthest objects that are in focus in an image
position, maintaining that slight unsharpness in foreground objects is usually more disturbing than slight unsharpness in distant parts of a scene. Some
Depth_of_field
Multimedia framework
detection (edgedetect) Sobel Filter (sobel) Prewitt Filter (prewitt) Unsharp masking (unsharp) Denoising (atadenoise, bitplanenoise, dctdnoiz, owdenoise, removegrain)
FFmpeg
Protecting a selected area from change during production
contrast masking is unsharp masking, an unusual term for a process intended to increase the apparent sharpness (acutance) of an image. Unsharp masking uses a
Masking_(art)
Medical imaging procedure
higher-resolution images, while lower doses lead to increased image noise and unsharp images. However, increased dosage raises the adverse side effects, including
CT_scan
Matrix used in image processing to alter an image
&1\\4&16&24&16&4\\6&24&36&24&6\\4&16&24&16&4\\1&4&6&4&1\end{bmatrix}}} Unsharp masking 5 × 5 Based on Gaussian blur with amount as 1 and threshold as
Kernel_(image_processing)
Open source raster graphics editor
The unsharp mask tool is used to sharpen an image selectively – it sharpens only those areas of an image that are sufficiently detailed. The Unsharp Mask
GIMP
Photographic printing process
masks to produce three contrast reducing and color correction unsharp masks. The unsharp masks were made with an oblique light source (and a clear film
Dye-transfer_process
Physics experiment
1103/RevModPhys.71.S288. P. Mittelstaedt; A. Prieur; R. Schieder (1987). "Unsharp particle-wave duality in a photon split-beam experiment". Foundations of
Double-slit_experiment
Foundational principle in quantum physics
}\right|} The two simultaneous measurements on A and B are necessarily unsharp or weak. It is also possible to derive an uncertainty relation that, as
Uncertainty_principle
Type of electronic circuit or optical filter
designs done in either the spatial domain or the frequency domain. The unsharp masking, or sharpening, operation used in image editing software is a high-boost
High-pass_filter
Varying application boundaries
"vagueness connotes insufficient specificity, whereas fuzziness connotes unsharpness of class boundaries". Not all scholars agree. With increasing academic
Fuzzy_concept
When a signal or function exceeds its target
Overshoot (bottom of image), caused by using unsharp masking to sharpen an image
Overshoot_(signal)
Digital painting and 2D animation software
channel, top/left/bottom/right edge detection, sobel, sharpen, mean removal, unsharp mask, gaussian noise removal, wavelet noise reducer, emboss horizontal
Krita
Image processing technique
compressed) and applies unsharp masking with a large radius, which increases local contrast rather than sharpening. See unsharp masking: local contrast
Tone_mapping
Measurement of a quantum system which minimally disturbs it
measurement is low. In the literature weak measurements are also known as unsharp, fuzzy, dull, noisy, approximate, and gentle measurements. Additionally
Weak_measurement
Automatic analysis of video
enhancement technologies such as video denoising, image stabilization, unsharp masking, and super-resolution.[citation needed] Several articles provide
Video_content_analysis
Photographic technique
digitally (focus stacking). Usually this involves the use of software with unsharp masking, a filtering algorithm that removes out-of-focus portions of each
Bracketing
Part of an eye examination
reflecting the light into the eye an optical method for correcting an unsharp image of the fundus Helmholtz called his instrument an Augenspiegel ('eye
Ophthalmoscopy
Image processing methods
(ink, paint, sketch) Shadow mapping Sepia tone Sharpen/unsharpen (texture unsharp mask, LumaSharpen, sharpen, sharpen complex 1/2, adaptive-sharpen) Sobel
Video_post-processing
Reduced-size versions of images or videos
pixels in the long dimension, or smaller 75×75 pixels. It also applies unsharp mask to them. Picasa automatically produces thumbnails that are a maximum
Thumbnail
Processes of altering images
can be used to both sharpen and blur images in a number of ways, such as unsharp masking or deconvolution. Portraits often appear more pleasing when selectively
Image_editing
Video editing software
Mirror, Remap, Deform, Convolution, Linear Blur, Black Restore, Levels, Unsharp Mask, Color Grading, and Timecode Burn filter. Batch Capture with Automatic
Vegas_Pro
Camera technique
selective focus requires a careful choice of what is sharp as well as what is unsharp, as Vincent Laforet has noted. Because the tilt also affects the position
Tilt–shift_photography
Context dependence in quantum measurements
W. (2005-05-31). "Contextuality for preparations, transformations, and unsharp measurements". Physical Review A. 71 (5) 052108. arXiv:quant-ph/0406166
Quantum_contextuality
Hand tool used for turning screws
has a related shank diameter. The driver has a 57° point and tapered, unsharp (rounded) flutes. The #1 and smaller bits come to a blunt point, but the
Screwdriver
Conversion of raster graphics into vector graphics
within the lines. The pencil lines also have interior defects due to the roughness (tooth) of the paper. The scan also has some unsharp masking artifacts.
Image_tracing
Flat, usually circular disc that encodes binary data
disc is usually recoverable from a defective optical drive by pushing an unsharp needle into the emergency ejection pinhole, and has no point of immediate
Optical_disc
Austronesian ethnic group
villages having their own separate language identity intact. A similarly unsharp language border can also be observed in the northwestern coastal towns
Bugis
Digital camera lens mount model
have a small image circle. Such lenses will give noticeable vignetting or unsharp outer areas if used on a 35mm film or full frame sensor cameras. To a lesser
Canon_EF-S_lens_mount
File format used in digital photography
fringing correction contrast manipulation increasing visual acuity by unsharp masking dynamic range compression – lighten shadow regions without blowing
Raw_image_format
Image processing filter
vary according to a number of properties; the most common algorithm is unsharp masking, which has the following parameters: Amount. This controls the
Edge_enhancement
Device that optically scans images, printed text
in 1-bit monochrome, the on-board processor was capable of halftoning, unsharp masking, contrast adjustment, and anamorphic distortions, among other features
Image_scanner
Implementation of an ambient occlusion illumination in computer graphics
Next Gen – CryEngine 2 Video showing SSAO in action Image Enhancement by Unsharp Masking the Depth Buffer Hardware Accelerated Ambient Occlusion Techniques
Screen space ambient occlusion
Screen_space_ambient_occlusion
Deviation from perfect paraxial optical behavior
reproduction; in unsharp, reproduction, the question of distortion arises if only parts of the object can be recognized in the figure. If, in an unsharp image,
Optical_aberration
Optical illusion
processing systems use edge-detection in a way analogous to the brain, using unsharp masking to clarify edges in photos for example. Acutance Cornsweet illusion
Mach_bands
Reconstruction of a filtered signal
Digital room correction Free deconvolution Point spread function Deblurring Unsharp masking O'Haver, T. "Intro to Signal Processing - Deconvolution". University
Deconvolution
Image viewer software for Windows
correction, red-eye removal, clone brush, curve (tonality), levels, and unsharp mask Side-by-side image comparison Resampling Magnifier lens Batch operations
FastStone_Image_Viewer
Cartridge film format introduced in 1972
110 format is associated with prints that are often rather grainy and unsharp. This has led to the misconception that the cartridge itself is incapable
110_film
Capacity of an excited neuron to reduce activity of its neighbors
contrast between the light and dark creates a sharper image. (Compare unsharp masking in digital processing). This mechanism also creates the Mach band
Lateral_inhibition
Process of making an image with neutrons
The object is placed in the neutron beam. Given increased geometric unsharpness from those found with X-ray systems, the object generally needs to be
Neutron_imaging
Video editing software
2005-01-10 From the change log in the source (selection): "Treshold effect, unsharp mask effect, spherical gradient, motion and rotation tracking, greyscale
Cinelerra
Non-linear digital filtering technique to remove noise
Bilateral filter Average with limited data validity Smoothing Sharpening Unsharp masking High-pass filter Rezaee, Alireza (April 2021). "Partition Fuzzy
Median_filter
Canadian theoretical quantum physicist
W. (2005-05-31). "Contextuality for preparations, transformations, and unsharp measurements". Physical Review A. 71 (5) 052108. arXiv:quant-ph/0406166
Robert_Spekkens
Photography technique
ability to choose the region of sharpness and the amount of blur for the unsharp areas after the photograph has been taken. In addition, digital miniature
Miniature_faking
Type of non-destructive testing
Image quality of indicators (duplex wire type), determination of image unsharpness value EN 584–1, Non-destructive testing – Industrial radiographic film
Industrial_radiography
ISBN 978-0-691-00435-8. Retrieved 17 May 2012. Dalla Chiara, M. L.; Giuntini, R. (1994). "Unsharp quantum logics". Foundations of Physics. 24 (8): 1161–1177. Bibcode:1994FoPh
Timeline_of_quantum_mechanics
Aspect of facial recognition software
represented as a superposition of the global high-resolution image and an “unsharp mask”. In the second step, the interpolated image is decomposed into a
Face_hallucination
2002 American film
But The Class War Production companies GMD Studios Parallax Productions Unsharp Mask Release date January 13, 2002 (2002-01-13) (Slamdance Film Festival)
Nothing_So_Strange
Raster graphics editor by Microsoft
including emboss, noise reduction, RGB gamma correction options, smudge, and unsharp mask features. The following effects of Photo Editor are not included in
Microsoft Office Picture Manager
Microsoft_Office_Picture_Manager
Epistemic model
teleportation, interference, the no-cloning and no-broadcasting theorems, and unsharp measurements. The toy model cannot, however, reproduce quantum nonlocality
Spekkens_toy_model
Shiny visual appearance of an object
perception of an image reflected in the surface can be degraded by appearing unsharp, or by appearing to be of low contrast. The former is characterised by
Gloss_(optics)
1969 film by Jack Smight
Vincent Canby of The New York Times wrote, "Mr. Kreitsek's screenplay is unsharp, without focus, working into and out of the hallucinations with great awkwardness
The_Illustrated_Man_(film)
video capability. The layer palette received drag-drop capability and unsharp masking got yet another upgrade. Soft proofing with ICC profiles was introduced
Chasys_Photo
Algebraic structure
ISBN 978-0-387-77487-9. Foulis, D. J.; Bennett, M. K. (1994). "Effect algebras and unsharp quantum logics". Foundations of Physics. 24 (10): 1331. Bibcode:1994FoPh
Partial_algebra
Art and practice of creating images by recording light
High-dynamic-range imaging (HDR) Image histogram Scanning Film scanner Unsharp masking Alternative process Bleach bypass Bromoil process Cross processing
Outline_of_photography
deliberately under-correct the spherical aberration of the lens system and render unsharp specular highlights as smoothly fuzzy blobs without affecting focus or
History of photographic lens design
History_of_photographic_lens_design
Character in Beowulf
193–212, pages 205–208 especially. Boenig, Robert (1992), "Very Sharp/Unsharp, Unpeace/Firm Peace: Morphemic Ambiguity in Beowulf", Neophilologus, 76
Unferth
Soviet camera brand and manufacturer
focus to infinity and the rangefinder will not be accurate, resulting in unsharp images. This may be the reason for the sometimes poor reputation of FED
FED_(camera)
Photography method
list (link) Phillips, James. "Unsharp Masking - A beginners primer". Retrieved 22 March 2013. Phillips, James. "Unsharp Masking - A beginners primer"
Darkroom_manipulation
Branch of knowledge concerned with building intuition for quantum theory
Spekkens, R. W. (2005). "Contextuality for preparations, transformations, and unsharp measurements". Physical Review A. 71 (5) 052108. arXiv:quant-ph/0406166
Quantum_foundations
Type of statistical analysis
image of a point source. The PSF is often described as an ellipsoid (with unsharp boundaries) of few hundred nanometers in focus diameter, and almost one
Fluorescence correlation spectroscopy
Fluorescence_correlation_spectroscopy
Video projector using cathode ray tube
Software-based geometry adjustments in digital projectors do not only create an unsharp and scaled picture, it also forces the picture to be electronically buffered
CRT_projector
Mathematical model of quantum mechanics
1989, Roberto Giuntini and Greuling introduced structures for studying unsharp properties, meaning those quantum events whose probability of occurring
Effect_algebra
Sketch BCC Spiral Blur BCC Colorize BCC Two Strip Color BCC Posterize BCC Unsharp Mask BCC Correct Selected Color BCC Vignette BCC Spray Paint Noise BCC
Boris_Continuum_Complete
British-Australian astronomer and photographer (born 1941)
image is re-assembled in the darkroom, where further techniques such as unsharp masking to enhance fine detail might also be applied. In 1986 he discovered
David_Malin
Software suite for image processing
shadows, three-part histogram, gradation curves, selective color correction, unsharp masking, color cast removal slider, color separation, and CMYK-preview
SilverFast
Image processing programming library
operations, where one operation can be constructed from other operations (e.g. unsharp mask is a combination of add, multiply, subtract and gaussian blur ops)
GEGL
Pencil Sketch BCC Spiral Blur BCC Correct Selected Color BCC Posterize BCC Unsharp Mask BCC Hue-Saturation-Lightness BCC Spray Paint Noise BCC Z Blur BCC
Boris_RED
Topics referred to by the same term
of Mind, a studio album by the band Covenant Unlisted Securities Market Unsharp masking, an image processing method United Socialist Movement, UK, 1934-1965
USM
System of logic lacking the excluded middle law
Luisa; Giuntini, Roberto; Greechie, Richard (2004). Reasoning in Quantum Theory: Sharp and Unsharp Quantum Logics. Springer. ISBN 978-1-4020-1978-4.
De_Morgan_algebra
American mathematician
most highly cited of Foulis's research papers is "Effect algebras and unsharp quantum logics" (Foundations of Physics, 1994) which he wrote with his
David_J._Foulis
in 1-bit monochrome, the on-board processor was capable of halftoning, unsharp masking, contrast adjustment, and anamorphic distortions, among other features
Autokon
British writer and photographer
produced photographs with one area of sharp focus while the remainder was unsharp. He vehemently pursued this argument about the nature of seeing and its
Peter_Henry_Emerson
Italian logician and philosopher of science
Giuntini and F. Paoli, Luguori, 2004) Reasoning in Quantum Theory: Sharp and Unsharp Quantum Logics (with R. Giuntini and R. Greechie, Kluwer, 2004) From Quantum
Maria_Luisa_Dalla_Chiara
Digital photograph color expert (born 1951)
replacement, or GCR) to avoid press problems or to make color correction easier. Unsharp masking by channel rather than overall. Emphasizing the darkening function
Dan_Margulis
Free software graphics editor
inverting, grayscale, isometric transformations, edge detect, sharpen, unsharp mask, soften, Gaussian blur, emboss and bacteria mtPaint supports BMP,
MtPaint
Crucial concept of quantum information
1007/978-3-319-43389-9. ISBN 978-3-319-43387-5. Paul, Busch (April 1986). "Unsharp reality and joint measurements for spin observables". Physical Review D
Incompatibility of quantum measurements
Incompatibility_of_quantum_measurements
German Physicist
2019. Retrieved 17 December 2025. "Hans-Christian Hege: Visualization of Unsharp Data – Roads to Sharp Formulations". TU Wien. "Hege, Hans-Christian". Zuse
Hans-Christian_Hege
Indian-American engineer and educator
Ramponi, G.; Mathews, V. J. (March 2000). "Image Enhancement via Adaptive Unsharp Masking". IEEE Trans. Image Process. 9 (3): 505–10. Bibcode:2000ITIP..
V_John_Mathews
2008 studio album by Farin Urlaub Racing Team
herd)) "Nichimgriff" (Notundercontrol) – 2:46 "Unscharf" (Fuzzy, lit. Unsharp) – 2:55 "Gobi Todič" – 2:32 "Seltsam" (Odd) – 2:51 "Krieg" (War) – 3:15
Die_Wahrheit_übers_Lügen
2003 live album by Rosenstolz
less impressed with the video recording on the DVD album, criticizing the unsharp pictures, the editing and the cinematography. By contrast, the DVD album
Live aus Berlin (Rosenstolz album)
Live_aus_Berlin_(Rosenstolz_album)
UNSHARPNESS
UNSHARPNESS
UNSHARPNESS
UNSHARPNESS
Boy/Male
Muslim
Ogle eyed
Female
English
Pet form of English Cherie, CHERETTE means "darling," and other names beginning with Cher-.
Female
Czechoslovakian
, pure.
Girl/Female
Hebrew, Indian, Telugu
Grace
Girl/Female
Indian, Telugu
Goddess of Justice; Glows Forever; Glittering Pearl
Boy/Male
Muslim
Hidden
Girl/Female
Hindu
Boy/Male
English
Brave; Manly. Famous Bearer: Prince Andrew.
Girl/Female
Hindu, Indian, Kannada, Marathi, Sindhi, Tamil, Telugu
Diminutive
Boy/Male
Hindu, Indian
Alias Name of Lord Shiva
UNSHARPNESS
UNSHARPNESS
UNSHARPNESS
UNSHARPNESS
UNSHARPNESS