File:Seven Coloured Pencils (rg-switch sRGB).jpg

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English: A spectrum of seven coloured pencils. Photographed in sunlight. Processed by Lightroom to lower the gamut (saturation mainly) so that the colours fit into sRGB colourspace. Then exported using a custom colour profile (rg-switch sRGB).
This colourspace was created with Photoshop. An image was edited and the "Convert to Profile" edit menu selected. Rather than a standard colour profile, the "Custom RGB..." option is chosen. This presents a dialog based around a simplified sRGB colour profile. I swapped the red and green primaries. Then saved the image. Using the Argyll CMS tool "extracticc", I removed this profile from the image and installed it on my PC. That then allows it to be used when exporting an image in Lightroom.
The purpose of this image is to clearly demonstrate when a browser is not colour managed. The colours should follow a spectrum with green in the middle and red on the right.
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Source Own work
Author Colin

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I, the copyright holder of this work, hereby publish it under the following license:
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Date/TimeThumbnailDimensionsUserComment
current21:27, 12 July 2015Thumbnail for version as of 21:27, 12 July 20151,024 × 1,024 (436 KB)Colin (talk | contribs)User created page with UploadWizard

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