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US 2006/0125966 A1Published application
Luminance and color separation
AssigneeKoninklijke Philips Electronics N.V.
InventorsGerard De Haan, Claus Cordes
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AssigneeKoninklijke Philips Electronics N.V.
InventorsGerard De Haan, Claus Cordes
Estimating the term…
A luminance and color separation filter unit (300, 400, 500, 600, 700) for extracting a luminance signal (Y) and two color signals (U, V) from a composite color television signal (CVBS), comprising a chrominance (C) signal being modulated on a subcarrier which is located in the high-frequency part of the frequency spectrum of the luminance signal (Y), is disclosed. The filter unit (300, 400, 500, 600, 700) is arranged to compute at least one value of a set of values comprising an output luminance value (Y(x, n)) of a particular output pixel (x), a first color value (U(x, n)) of the particular output pixel (x) and a second color value (V(x, n)) of the particular output pixel (x) on basis of a first (F1), a second (F2) and a third (F3) sample derived from the composite color television signal (CVBS), where the first (F1), the second (F2) and the third (F3) sample have mutually different sub-carrier phases.
A luminance and color separation filter unit (300, 400, 500, 600, 700) for extracting a luminance signal (Y) and two color signals (U, V) from a composite color television signal (CVBS), comprising a chrominance (C) signal being modulated on a sub-carrier which is located in the high-frequency part of the frequency spectrum of the luminance signal (Y), characterized in that the filter unit (300, 400, 500, 600, 700) is arranged to compute at least one value of a set of values comprising an output luminance value (Y({right arrow over (x)},n)) of a particular output pixel ({right arrow over (x)}), a first color value (U({right arrow over (x)}, n)) of the particular output pixel ({right arrow over (x)}) and a second color value (V({right arrow over (x)},n)) of the particular output pixel ({right arrow over (x)}) on basis of a first (F1), a second (F2) and a third (F3) sample derived from the composite color television signal (CVBS), where the first (F1), the second (F2) and the third (F3) sample have mutually different sub-carrier phases.
An image processing apparatus (800) comprising:
A method of extracting a luminance signal and two color signals from a composite color television signal, comprising a chrominance signal being modulated on a sub-carrier which is located in the high-frequency part of the frequency spectrum of the luminance signal, characterized in computing at least one value of a set of values comprising an output luminance value of a particular output pixel, a first color value of the particular output pixel and a second color value of the particular output pixel on basis of a first, a second and a third sample derived from the composite color television signal, where the first, the second and the third sample have mutually different sub-carrier phases.
A computer program product to be loaded by a computer arrangement, comprising instructions to extract a luminance signal and two color signals from a composite color television signal, comprising a chrominance signal being modulated on a sub-carrier which is located in the high-frequency part of the frequency spectrum of the luminance signal, the computer arrangement comprising processing means and a memory, the computer program product, after being loaded, providing said processing means with the capability to carry out:
Dependencies are inferred from the claim text.