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| UK Digital Video (uk.rec.video.digital) For the discussion of all aspects of digital video, including all digital video formats, camera use, editing, post production & all associated equipment, hardware and software. Advertising is prohibited. |
| Tags: corrected , gamma , ycbcr |
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#1
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| On Thu, 3 Jul 2003 12:49:38 +0200, "Dany" wrote: Well, can you tell me where I can find an testing process for my convert application? Without knowing what your application is in detail this would be almost impossible! We were talking about hardware testing. Testing software is a totaly different ball-game. IMHO any writer of software should also include a testing regime in his plan. However - this is somewhat off-topic for this group. grin Regards, Harry. |
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#2
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| I just need the YCbCr value for the full saturred color RGB YCM, for testing my convert process. I have some value in my book Ex for the red color RGB(255,0,0) YCbCr = 65, 100, 212 in 75% YCbCr colors bars I have YCbCr = 81.535, 90.26, 239.945 in 100% YCbCr = 61.1512, 90.26, 239.94 in 75% amplitude and 100% satured. I don't get why my value is so far from those of my book (video demystified) |
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#3
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| On Thu, 3 Jul 2003 17:06:10 +0200, "Dany" wrote: I just need the YCbCr value for the full saturred color RGB YCM, for testing my convert process. I have some value in my book Ex for the red color RGB(255,0,0) YCbCr = 65, 100, 212 in 75% YCbCr colors bars I get the above values. I have YCbCr = 81.535, 90.26, 239.945 in 100% The above agrees with the book. YCbCr = 61.1512, 90.26, 239.94 in 75% amplitude and 100% satured. I don't get why my value is so far from those of my book (video demystified) I have no idea, without seeing your working, of where you get these values from. Although I note that the C values are the same as those for the 100% bars! Regards, Harry. |
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#4
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| Thank you very much for your help. Dany |
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