Digital Chromatics ghi http://www.digitalchromatics.com Creative Ingenuity. Technical Prowess. Wed, 10 Dec 2014 21:25:32 +0000 en-US hourly 1 https://wordpress.org/?v=4.0.38 Gamma http://www.digitalchromatics.com/posts/gamma/ http://www.digitalchromatics.com/posts/gamma/#comments Mon, 07 Apr 2014 17:13:23 +0000 http://www.digitalchromatics.com/?p=2618 Gamma- An encoding technique for handling grayscale in video and HDTV systems. For accommodating extreme highlights and shadows, gamma encoding has been surpassed by Sony S-Log 2 logarithmic encoding and RAW recording.

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Gamma- An encoding technique for handling grayscale in video and HDTV systems. For accommodating extreme highlights and shadows, gamma encoding has been surpassed by Sony S-Log 2 logarithmic encoding and RAW recording.

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]]> http://www.digitalchromatics.com/posts/gamma/feed/ 0 Gamut http://www.digitalchromatics.com/posts/gamut/ http://www.digitalchromatics.com/posts/gamut/#comments Mon, 17 Dec 2012 22:47:20 +0000 http://www.digitalchromatics.com/?p=1485 Gamut - In image media this usually refers to the available range of colors – as in Color Gamut.

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]]> Gamut - In image media this usually refers to the available range of colors – as in Color Gamut.

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]]> http://www.digitalchromatics.com/posts/gamut/feed/ 0 GPU http://www.digitalchromatics.com/posts/gpu/ http://www.digitalchromatics.com/posts/gpu/#comments Mon, 17 Dec 2012 22:40:42 +0000 http://www.digitalchromatics.com/?p=1483 GPU - Graphics processing unit. A chip or digital circuit designed specifically for processing graphics and generally providing the main processing power of a computer graphics card. Having much more graphics power and speed than central processor unit (CPU) chips, GPUs can take over many of complex 2D and 3D processing tasks from the CPU.

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]]> GPU - Graphics processing unit. A chip or digital circuit designed specifically for processing graphics and generally providing the main processing power of a computer graphics card. Having much more graphics power and speed than central processor unit (CPU) chips, GPUs can take over many of complex 2D and 3D processing tasks from the CPU.

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]]> http://www.digitalchromatics.com/posts/gpu/feed/ 0 Grayscale http://www.digitalchromatics.com/posts/grayscale/ http://www.digitalchromatics.com/posts/grayscale/#comments Mon, 17 Dec 2012 22:40:01 +0000 http://www.digitalchromatics.com/?p=2620 Grayscale- The range of possible tones from deepest black to brightest white. Several breakthroughs in digital motion picture cameras and workflow involve improvements in grayscale handling from conventional video gamma encoding to S-Log encoding and ultimately to RAW recording.

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Grayscale- The range of possible tones from deepest black to brightest white. Several breakthroughs in digital motion picture cameras and workflow involve improvements in grayscale handling from conventional video gamma encoding to S-Log encoding and ultimately to RAW recording.

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]]> http://www.digitalchromatics.com/posts/grayscale/feed/ 0 Grading http://www.digitalchromatics.com/posts/grading/ http://www.digitalchromatics.com/posts/grading/#comments Mon, 17 Dec 2012 22:38:58 +0000 http://www.digitalchromatics.com/?p=1481 Grading - Grading is the process of adjusting the color of a clip to get the best out of the material or to match shots perhaps taken at different times or in different lighting conditions. In film, grading was traditionally done when going from internegative to print film by controlling the exposure of the film. In television […]

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]]> Grading - Grading is the process of adjusting the color of a clip to get the best out of the material or to match shots perhaps taken at different times or in different lighting conditions. In film, grading was traditionally done when going from internegative to print film by controlling the exposure of the film. In television it was traditionally done off the telecine for commercials or tape-to-tape for longform programs. Either way, both processes were by their nature linear.

The advent of non-linear grading systems has once again changed the rules for color correction. While there is still a requirement for an initial technical scan for film-originated material, from this point on, grading can – and often does – happen at multiple stages in the post production process. It is now possible to color correct individual layers within composites (which may be shot under different lighting conditions) to ensure that the result is harmonious within itself, and non-linear working means that scene-to-scene comparisons and corrections can be made as the edit unfolds. This eases the final grading process when the finished work is reviewed interactively with the director/client.

Secondary color correction is aimed at controlling a particular color or a narrow range of colors – such as those on a car or product. Here typically the hue, gain and saturation can be changed. There are also several methods available for defining the object, area or ‘window’ of required color correction such as using wipe-pattern shapes, drawing an electronic mask by hand or a combination of automatic and by-hand methods.

See also – Final Color

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]]> http://www.digitalchromatics.com/posts/grading/feed/ 0 H.264 http://www.digitalchromatics.com/posts/h264/ http://www.digitalchromatics.com/posts/h264/#comments Mon, 17 Dec 2012 22:37:56 +0000 http://www.digitalchromatics.com/?p=1342 H.264 – a standard for video compression, and is currently one of the most commonly used formats for the recording, compression, and distribution of high definition video.  

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]]> H.264 – a standard for video compression, and is currently one of the most commonly used formats for the recording, compression, and distribution of high definition video.

 

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]]> http://www.digitalchromatics.com/posts/h264/feed/ 0 High Dynamic Range (HDR) http://www.digitalchromatics.com/posts/hdr/ http://www.digitalchromatics.com/posts/hdr/#comments Mon, 17 Dec 2012 22:35:56 +0000 http://www.digitalchromatics.com/?p=1479 High Dynamic Range - technique that allows a greater dynamic range of exposure than normally possible, with the intention of accurately representing the wide brightness range of real scenes ranging from direct sunlight to shadows. This is sometimes used with computer-generated images or photography (by taking several pictures of a scene over a  range of exposure settings) and […]

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]]> High Dynamic Range - technique that allows a greater dynamic range of exposure than normally possible, with the intention of accurately representing the wide brightness range of real scenes ranging from direct sunlight to shadows. This is sometimes used with computer-generated images or photography (by taking several pictures of a scene over a  range of exposure settings) and it can provide a large amount of headroom for the adjustment of images in post production.

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]]> http://www.digitalchromatics.com/posts/hdr/feed/ 0 Illegal Colors http://www.digitalchromatics.com/posts/illegal-colors/ http://www.digitalchromatics.com/posts/illegal-colors/#comments Mon, 17 Dec 2012 22:26:10 +0000 http://www.digitalchromatics.com/?p=1475 Illegal Colors - Colors that lie outside the limits, or gamut, of a particular color space. These can be generated when moving images from one color space to another, as they all have different boundaries, or as the result of color processing.

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]]> Illegal Colors - Colors that lie outside the limits, or gamut, of a particular color space. These can be generated when moving images from one color space to another, as they all have different boundaries, or as the result of color processing.

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