User Manual - Topaz Labs

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User ManualGlossaryTopaz DeJPEGAchromatic - Without color.Algorithm - Any bit of code or programming that definesa process.Artifact- Any undesired alteration in data introducedduring its digital processing.Blur - Make or become unclear or less distinct.made up of a specific primary color. In a typical digitalphoto, the primary colors of red, green and blue(from the RGB color model) create all the colors inthat photo, which may be represented by three colorchannels, each of red, green or blue.Color Noise – A type of digital noise in which coloredges are blurred or the image is unevenly coloredand filled with spots.Brightness - The degree to which a color sample appearsto reflect light.Color Profile - defines the range of colors that can appearin a digital photo.Checkerboarding – A type of distortion that shows upas abnormally large pixel blocks in the image; tends toshow up in areas with lots of information; usually onlyoccurs with highly-compressed images.Chroma - Purity or intensity of color. The differenceof a color against the brightness of another color thatappears white under similar viewing conditions.Clean Color – A parameter that controls the amountof color noise to reduce.CMYK - Cyan, magenta, yellow, and black. A colormodel commonly used for 4-color printing by printersto define and mix all of the colors they are capable ofoutputting.Color - The human perceptual response to differentwavelengths of light impinging on the photo receptorsin the retina.Color channel - The visual component of a color digitalimage that represents all the pixels in that pictureCompression - The process of encoding digital informationusing fewer bits.Compression Artifacts – Fuzziness or distortion ina compressed image or sequence of video imagescaused by lossy compression, i.e., into a JPEG format.Download - The process of transmitting or transferringdata from one device to another.Edge Artifacts – The “ringing” artifacts or distortionsfound around image edges.Export - Outbound data transfer in a format that canbe used by other programs.Grain –Lightly speckled noise that is used to apply amore natural look to an image.HDR (High Dynamic Range) - Allows a greater dynamicrange of luminances between the lightest and darkestareas of an image than standard digital imaging techniquesor photographic methods. This wider dynamic42
User ManualGlossaryTopaz DeJPEGrange allows HDR images to more accurately representthe wide range of intensity levels found in realscenes, ranging from direct sunlight to faint starlight.Image - An array of pixels that make up a digital picture.Import - Inbound data transfer into a file or document.ISO - The amount of sensitivity of a digital camera sensor.A higher ISO enables faster shutter speeds and/or better performance in low light, but is more susceptibleto experiencing increased noise.Lossless Compression - A reversible way of reducingthe size of data while preserving it.Lossy - Computing of or relating to data compressionin which unnecessary information is discarded.Lossy Compression - An irreversible way of reducingthe size of data by approximating it.Luma (Luminance) - The brightness in an image (the“black” and “white” or achromatic portion of the image).Luma represents the achromatic image withoutany color, while chroma components represent thecolor information.Noise - Visible effects of interference in an image froma digital camera. Often appearing as random coloreddots sprinkled throughout the image or unevencoloration in what should be smoothly-colored areas.It is most likely to show up in the darker or shadowedareas of an image. Noise can be an undesirable effectthat detracts from overall image quality or somethingyou can choose to create artistically.Pan and Zoom - A useful function that allows users tomagnify the captured image in the preview and then,by using the cursor, to move or pan around the image.Typically Pan and Zoom allows users to magnify theimage 2x or 4x time. By magnifying the images andzeroing in on a specific section, you can see detailsnot visible when the entire image is sized to fit thepreview.Parameter - A numerical or other measurable factorforming one of a set that defines a system or sets theconditions of its operation.Photo-editing or Imaging software – Programs inwhich you can alter your photos and / or create digitalimages. Depending on the software, you can improveexposure, color and other attributes of your picture,paint on it, add type, apply special effects, removenoise, resize it, combine it with other pictures, prepareit for e-mail or posting on the web, output it to aprinter, or do any number of other manipulations oredits.Plug-in - A computing feature with the ability to beadded to a system to give extra features or functions.Preset - A pre-defined combination of parameters andsettings that is saved into a folder within Topaz Detail2. Topaz provides default presets. A preview of eachpreset can be seen in the preset preview window locatedat the top left hand side of the interface abovethe preset list.43
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User Manual - Topaz Labs

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