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PYTHON480 Datenblatt(PDF) 45 Page - ON Semiconductor |
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PYTHON480 Datenblatt(HTML) 45 Page - ON Semiconductor |
45 / 69 page PYTHON 480 www.onsemi.com 45 Data order: CMOS Interface Mode To read out the image data through the parallel CMOS output, the pixel array is divided in kernels. The kernel size is two pixels in x−direction by one pixel in y−direction. Figure 34 on page 41 indicates how the kernels are organized. The pixel data is transmitted in order. The figures in the following paragraphs represent the data order for a non−mirrored readout (i.e. left−to−right readout). • No Subsampling Figure 40 shows the pixel sequence of a kernel which is read out over the single CMOS output channel. The pixels are transmitted in order or ascending for a normal readout and descending for a mirrored readout. Figure 40. CMOS Mode: Data Output Order without Subsampling kernel N−2 kernel N+1 kernel N kernel N−1 0 1 pixel # • Subsampling On Monochrome Sensor To read out the image data with subsampling enabled on a monochrome sensor, two neighboring kernels are combined to a single kernel of 4 pixels in the x−direction and one pixel in the y−direction. Only the pixels at the even pixel positions inside that kernel are read out. Figure 41 shows the data order. Figure 41. CMOS Mode: Data Output Order with Subsampling on a Monochrome Sensor kernel N−2 kernel N+1 kernel N kernel N−1 0 2 pixel # • Subsampling On Color Sensor To read out the image data with subsampling enabled on a color sensor, two neighboring kernels are combined to a single kernel of 4 pixels in the x−direction and one pixel in the y−direction. Figure 42 shows the data order. Figure 42. CMOS Mode: Data Output Order with Subsampling on a Color Sensor kernel N−4 kernel N+2 kernel N kernel N−2 0 1 pixel # |
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