| CPC H04N 23/741 (2023.01) [H04N 7/0117 (2013.01)] | 17 Claims |
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1. A video signal conversion method, comprising:
receiving an input signal from a video source;
extracting an image metadata from the input signal;
determining whether the input signal corresponds to a high dynamic range (HDR) imaging format according to at least one format information of the image metadata and determining whether a video receiver supports the high dynamic range imaging format;
generating a conversion command in response to the input signal corresponding to the high dynamic range imaging format and the video receiver being not support the high dynamic range imaging format;
converting, by a video processor, the input signal into an output signal corresponding to a standard dynamic range (SDR) imaging format according to the conversion command which is received by the video processor and the at least one format information, comprising:
setting, by the video processor, a color conversion threshold according to the at least one format information; and
converting, by the video processor, the input signal into the output signal to fit a gamut of the standard dynamic range imaging format according to the color conversion threshold, in order to generate the output signal;
sending, by the video processor, the output signal to the video receiver; and
receiving by the video receiver, the output signal in SDR imaging format.
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