Articles
Pointing out the right colours
N/A In the old days of PAL and NTSC analogue television, a vectorscope was an essential tool for examining chroma at every part for the programme production and transmission chain. This was because the colour information was carried as a phase and amplitude modulation which could be sensitive to a variety of transmission or recording non-linearities and problems. These could cause colour degradation or be completely wrong. In the digital age, colour information is carried in digits which do not usually get corrupted at each regeneration or link. So why would you want to look the chroma (colour information), portrayed on the same analogue style instrument?
Tags: iss069 | cel-soft | cel-scope 3d | celsoft | celscope | vectorscope | N/A
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Gamut errors: Who cares?
N/A Gamut errors are the most common video signal problems. This is because colour television or cinematography depends on being able to represent every pixel on the screen in terms of red, green and blue. We want to deliver perfect RGB signals representing all the possible colours in our pictures. Virtually all display technologies use RGB primary colours to match the RGB colour sensitivities of the human eye. A gamut error occurs if we process video from a non-RGB colour space which overloads or creates negative value in one of the RGB channels.
Tags: iss065 | soloqc | celsoft | gamut error | real-check | N/A
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Total Articles: 2 [1-2]