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VX6953CB датащи(PDF) 53 Page - STMicroelectronics |
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VX6953CB датащи(HTML) 53 Page - STMicroelectronics |
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53 / 107 page ![]() 8209023 Rev 5 53/107 VX6953CB Video timing Figure 16. Scaling modes Scaler quality The scaler supports two options for the spatial sampling of the scaled image data: (see Figure 17): • Bayer sampled scaled image data The sampling point for the scaler for the output Gr value appears to be in the centre of the Gr pixel (i.e. between the 1st and 2nd pixels and between the 1st and 2nd rows of the original input Bayer pixel data). The R (or B) sampling points are similarly in the centre of the R pixel (or B pixel). • co-sited scaled image data The sampling point for the Gr, R. Gb and B vales in each output ‘quad’ are functions of the same colour input array pixels such that the spatial sampling point for all four appears to be in the centre of the ‘quad’ i.e. between the 2nd and 3rd pixels and between the 1st and 2nd rows. The spatial sampling mode is controlled by the spatial_sampling register. Figure 17. Scaler quality Pixel array output scaling_mode register VX6953CB output 0- no scaling 1- horizontal scaling 2- Full scaling (horizontal and vertical) Pixel array output Bayer sampled scaling Co-sited sampling |
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