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MediaPortal 1
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VMR9 Incorrect Brightness / Gamma for Video
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<blockquote data-quote="javers" data-source="post: 19881" data-attributes="member: 13358"><p>Hi Oren,</p><p></p><p>What your experiencing could be this:</p><p></p><p>Computers use 8 bits of data for each of the primary colours (RGB), so each channel can have a value from 0 - 255. Black being at RGB 0,0,0 and white being at RGB 255,255,255. </p><p></p><p>However studio (film and TV) colour only range from 16 to 235 (black being at RGB 16,16,16 and white being at RGB 235,235,235. When you view video footage via overlay it stretches out the values from 16 - 235 so they fit the computer colour scheme of 0 - 255 which makes blacks look correct but is ultimatly showing you incorrect and inaccurate colours.</p><p></p><p>VMR 9 however keeps its colours at their correct values of 16 - 235 giving a more accurate colour range. However on a device set to display computer colours, it makes blacks look grey and whites not brilliant white. Therefore the only way to display VMR9 properly is to turn down the brightness and turn up the contrast of your TV / Monitor.</p><p></p><p>Jon</p></blockquote><p></p>
[QUOTE="javers, post: 19881, member: 13358"] Hi Oren, What your experiencing could be this: Computers use 8 bits of data for each of the primary colours (RGB), so each channel can have a value from 0 - 255. Black being at RGB 0,0,0 and white being at RGB 255,255,255. However studio (film and TV) colour only range from 16 to 235 (black being at RGB 16,16,16 and white being at RGB 235,235,235. When you view video footage via overlay it stretches out the values from 16 - 235 so they fit the computer colour scheme of 0 - 255 which makes blacks look correct but is ultimatly showing you incorrect and inaccurate colours. VMR 9 however keeps its colours at their correct values of 16 - 235 giving a more accurate colour range. However on a device set to display computer colours, it makes blacks look grey and whites not brilliant white. Therefore the only way to display VMR9 properly is to turn down the brightness and turn up the contrast of your TV / Monitor. Jon [/QUOTE]
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VMR9 Incorrect Brightness / Gamma for Video
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