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| − | Please add the entry alphabetically to the list. | + | <!-- Please don't add entries here. Instead use the Glossary template on the respective page. For Details please see [[Category:Glossary]] --> |
| − | {{compactTOC}}
| + | __NOEDITSECTION__ |
| − | | + | {{CompactTOC}} |
| − | | + | {{GlossaryParagraph|A}} |
| − | == A ==
| + | {{GlossaryParagraph|B}} |
| − | '''[[Aliasing]]''' - less than optimal resampling that causes "jaggies" and Moire effects.
| + | {{GlossaryParagraph|C}} |
| − | | + | {{GlossaryParagraph|D}} |
| − | '''[[Alpha channel]]''' - an image channel containing a mask or selection.
| + | {{GlossaryParagraph|E}} |
| − | | + | {{GlossaryParagraph|F}} |
| − | '''[[Field_of_View|Angle of View]]''' The angle in degrees that a projection covers.
| + | {{GlossaryParagraph|G}} |
| − | | + | {{GlossaryParagraph|H}} |
| − | '''[[Aspect Ratio]]''' - the ratio (proportion) between height and width of an image.
| + | {{GlossaryParagraph|I}} |
| − | | + | {{GlossaryParagraph|J}} |
| − | == B ==
| + | {{GlossaryParagraph|K}} |
| − | | + | {{GlossaryParagraph|L}} |
| − | '''[[Banding]]''' Visible steps in smooth gradients.
| + | {{GlossaryParagraph|M}} |
| − | | + | {{GlossaryParagraph|N}} |
| − | '''[[Barrel distortion]]''' A distortion produced by the lens itself which causes straight lines to be bent outwards.
| + | {{GlossaryParagraph|O}} |
| − | | + | {{GlossaryParagraph|P}} |
| − | == C ==
| + | {{GlossaryParagraph|Q}} |
| − | '''[[CCD]]''' A type of image sensor used in digital cameras.
| + | {{GlossaryParagraph|R}} |
| − | | + | {{GlossaryParagraph|S}} |
| − | '''[[Chromatic aberration]]''' A type of lens error generating colored fringes.
| + | {{GlossaryParagraph|T}} |
| − | | + | {{GlossaryParagraph|U}} |
| − | '''[[Contrast Blending]]''' A technique to blend several exposure bracketed images in one image
| + | {{GlossaryParagraph|V}} |
| − | | + | {{GlossaryParagraph|W}} |
| − | '''[[Control points]]''' are used to identify matching features in adjacent images.
| + | {{GlossaryParagraph|X}} |
| − | | + | {{GlossaryParagraph|Y}} |
| − | '''[[Cropped TIFF]]''' TIFF flavor where the image canvas includes a smaller image at an offset within the larger area.
| + | {{GlossaryParagraph|Z}} |
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| − | '''[[Cubic Projection]]''' A subcase of the [[Rectilinear Projection]] used as the input source projection for some fully spherical panorama viewers.
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| − | '''[[Cylindrical panorama]]''' A panoramic image in [[Cylindrical Projection]]
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| − | '''[[Cylindrical Projection]]''' A projection capable of mapping 360 degrees horizontally by roughly 120 degrees vertically with acceptable distortion.
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| − | == D ==
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| − | '''[[Depth of Field]]''' The distance in front of and behind the focus distance where the image blur is not recognizable.
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| − | '''[[DPI]]''' Dots Per Inch - Pixel density when printing images.
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| − | '''[[DSLR spherical resolution]]''' What [[spherical]] panorama resolution can I obtain from a certain [[fisheyes|fisheye]]/camera combination.
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| − | '''[[Dynamic range]]''' The ratio in brightness of the brightest highlight to the darkest shadow that are accurately captured in a scene.
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| − | == E ==
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| − | '''[[Entrance pupil]]''' The special point that you have to rotate your camera around, to avoid parallax errors. Commonly referred to as the [[Nodal Point]] or better [[no-parallax point]], which see for more information.
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| − | '''[[Equirectangular Projection]]''' A projection capable of mapping the entire sphere to a rectangle with 2:1 aspect ratio.
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| − | '''[[EXIF]]''' Exchangeable Image File Format. EXIF data allows camera, lens, exposure information, image description, copyright, etc. to be embedded in an image file.
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| − | == F ==
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| − | '''[[Field of View]]''' The angle in degrees that a projection covers.
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| − | '''[[Fisheye Projection]]''' A projection where the distance from the centre of the image to a point is proportional to the equivalent spatial angle.
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| − | '''[[FJPG]]''' is a [[JPEG]] flavor that supports display of high [[dynamic range]] images for [[PTViewer]] 3.x introduced by [[Helmut Dersch]].
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| − | '''[[Focal Length]]''' the physical property of a lens which together with the sensor size determines the [[Field of View]]
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| − | == G ==
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| − | '''[[Gamma]]''' The relation between pixel values and visible brightness.
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| − | '''[[GIF]]''' Graphics Interchange Format. An [[Image format]] introduced by compuserve.
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| − | == H ==
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| − | '''[[Halo]]''' Bright or dark areas along hard contrast edges introduced by certain image manipulations.
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| − | '''[[HDR]]''' High [[dynamic range|Dynamic Range]]
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| − | '''[[HDR compression]]''' The compression of the [[dynamic range|Dynamic Range]] in order to be displayed on a low dynamic range device like monitor or printer.
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| − | '''[[Depth of Field#Hyperfocal_distance|Hyperfocal distance]]''' The distance on which you have to focus your lens if you want the [[Depth of Field]] to stretch to infinity.
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| − | == I ==
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| − | '''[[Interpolation]]''' A mathematical way to estimate a value in beetween two values. In image processing: The pixel color and brightness in between two pixels.
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| − | == J ==
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| − | '''[[JAR]]''' A file format for distributing [[Java]] software
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| − | '''[[Java]]''' A programming language, program execution environment and executable program format
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| − | '''[[JPEG]]''' Joint Photographic Experts Group widely used [[Image format]]
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| − | == K ==
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| − | == L ==
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| − | '''[[Landscape]]''' Image orientation with the longer side in horizontal direction.
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| − | '''[[Lens correction model]]''' A mathematical model that allows the correction of some [[Lens distortion|lens distortions]]
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| − | '''[[Lens distortion]]''' A distortion produced by the lens itself which causes straight lines to be bent in some way.
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| − | == M ==
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| − | == N ==
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| − | '''[[Nadir]]''' The point directly below
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| − | '''[[No-parallax point]]''' Better name for 'Nodal Point' (see below).
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| − | | + | |
| − | '''[[Nodal Point]]''' The special point that you have to rotate your camera around, to avoid [[parallax]] errors. Also called "entrance pupil". Click the term for more info.
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| − | == O ==
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| − | '''[[Object Movie]]''' "Inverted panorama" where you can move around an object.
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| − | '''[[Optical axis]]''' The center longitudinal axis of an optical system.
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| − | == P ==
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| − | '''[[Panorama]]''' An image of a very wide or even surround scene or with a typical [[Aspect Ratio]]
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| − | '''[[Parallax]]''' Foreground shift in two images shot from the same scene but from different points
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| − | '''[[Philosphere]]''' A way to map a spherical panorama on the outside of an approximated sphere invented by [http://www.philohome.com/ Philo]
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| − | '''[[Perspective distortion]]''' Image distortion caused by the fact that a 3-dimensional world is mapped to a 2-dimensional image.
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| − | '''[[Pincushion distortion]]''' A [[lens distortion]] which causes straight lines outside the image center to be bent inwards (like a pincushion).
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| − | '''[[Pitch]]''' Angle up-and-down (above and below horizon). See also "[[Roll]]" and "[[Yaw]]".
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| − | '''[[PNG]]''' Portable Network Graphics [[Image format]]
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| − | '''[[Portrait]]''' Image orientation with the longer side in vertical direction.
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| − | '''[[Projections]]''' Different possibilities to get a two-dimensional image of the three-dimensional world around us.
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| − | '''[[PSD]]''' Photoshop Document format. A proprietary [[Image format]] used by Adobe [[Photoshop]]
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| − | '''[[PTblender]]''' A command-line tool that implements just the colour and brightness correction
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| − | functionality of [[PTmender]] (a replacement for [[PTStitcher]]).
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| − | '''[[PTmender]]''' An Open Source replacement for [[Helmut Dersch]]'s [[PTStitcher]]
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| − | '''[[PTOptimizer]]''' Panorama tools image position and correction parameters optimizer. Script driven.
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| − | '''[[PTStitcher]]''' Main panorama tools stitcher application. Script driven.
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| − | '''[[PTV]]''' PTViewer [[Image format]], supported by [[PTViewer]] version 2.8 from [[Fulvio Senore]]
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| − | == Q ==
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| − | '''[[Quicktime]]''' Apples multimedia technologie.
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| − | '''[[QTVR]]''' '''QuickTime Virtual Reality''' A subset of the functionality of Apple [[Quicktime]]
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| − | == R ==
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| − | '''[[RAW]]''' A group of some hundred proprietary [[image format|image formats]] containg unprocessed sensor data from digital cameras.
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| − | '''[[Rectilinear Projection]]''' A projection in which every straight line in the world stays straight in the image.
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| − | '''[[Reflection mapping]]''' Simulating a complex mirroring surface by means of a ([[spherical]]) panorama.
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| − | '''[[Roll]]''' Rotation angle around the lens axis. See also "[[Pitch]]" and "[[Yaw]]".
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| − | == S ==
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| − | '''[[Spherical]]''' is a panorama format that can contain the whole sphere around the viewer.
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| − | '''[[DSLR spherical resolution|Spherical Resolution]]''' What resolution can I obtain from a certain fisheye/camera combination.
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| − | == T ==
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| − | '''[[TIFF]]''' Tagged Image File Format. A widely used [[Image format]] for storage and exchange of image files.
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| − | '''[[Tone mapping]]''' Technique for reproducing the appearance of images having a higher [[dynamic range]] than the reproducing media (e.g. prints or standard monitors).
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| − | == U ==
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| − | == V ==
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| − | '''[[Vignetting]]''' Light fall-off in the corners of images
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| − | == W ==
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| − | '''[[Wavy distortion]]''' A distortion produced by the lens itself which causes straight lines to be bent in waves.
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| − | == X ==
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| − | == Y ==
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| − | '''[[Yaw]]''' Panning angle, left-and-right. See also "[[Pitch]]" and "[[Roll]]".
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| − | == Z ==
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| − | '''[[Zenith]]''' The point directly above.
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| − | == 0 - 9 ==
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| − | == others ==
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| − | [[Category:Glossary]]
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