1 RGB to Y CbCr for SD&HD video input ...

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1 RGB to Y CbCr for SD&HD video input for floating point surfaces, ebook
 
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// (C) 2011 Jan-Willem Krans (janwillem32 <at> hotmail.com)// This file is part of Video pixel shader pack.// This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.// This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.// You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.// RGB to Y'CbCr for SD&HD video input for floating point surfaces// This shader should not be run as a screen space pixel shader.// If possible, avoid compiling with the software emulation modes (ps_?_sw). Pixel shaders require a lot of processing power to run in real-time software mode.// This shader will change BT.709 [HD] or BT.601 [SD] derived RGB to Y'CbCr of an image.sampler s0;float2 c0;float4 main(float2 tex : TEXCOORD0) : COLOR{float3 s1 = tex2D(s0, tex).rgb;// original pixelif(c0.x < 1120 && c0.y < 630) return float3(dot(float3(.299, .587, .114), s1), dot(float3(-.1495/.886, -.2935/.886, .5), s1), dot(float3(.5, -.2935/.701, -.057/.701), s1)).xyzz;// SD RGB to Y'CbCr outputreturn float3(dot(float3(.2126, .7152, .0722), s1), dot(float3(-.1063/.9278, -.3576/.9278, .5), s1), dot(float3(.5, -.3576/.7874, -.0361/.7874), s1)).xyzz;// HD RGB to Y'CbCr output} [ Pobierz całość w formacie PDF ]
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