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MT9V023 Arkusz danych(PDF) 7 Page - ON Semiconductor |
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MT9V023 Arkusz danych(HTML) 7 Page - ON Semiconductor |
7 / 43 page MT9V023 www.onsemi.com 7 COLOR DEVICE LIMITATIONS The color version of the MT9V023 does not support or offers reduced performance for the following functionalities. Pixel Binning Pixel binning is done on immediate neighbor pixels only, no facility is provided to skip pixels according to a Bayer pattern. Therefore, the result of binning combines pixels of different colors. See “Pixel Binning” for additional information. Interlaced Readout Interlaced readout yields one field consisting only of red and green pixels and another consisting only of blue and green pixels. This is due to the Bayer pattern of the CFA. Automatic Black Level Calibration When the color bit is set (R0x0F[1]=1), the sensor uses black level correction values from one green plane, which are applied to all colors. To use the calibration value based on all dark pixels’ offset values, the color bit should be cleared. Defective Pixel Correction For Defective Pixel Correction to calculate replacement pixel values correctly, for color sensors the color bit must be set (R0x0F[1] = 1). However, the color bit also applies unequal offset to the color planes, and the results might not be acceptable for some applications. Other Limiting Factors Black level correction and row-wise noise correction are applied uniformly to each color. The row-wise noise correction algorithm does not work well in color sensors. Automatic exposure and gain control calculations are made based on all three colors, not just the green channel. High dynamic range does operate in color; however, ON Semiconductor strongly recommends limiting use to linear operation where good color fidelity is required. |
Podobny numer części - MT9V023_17 |
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Podobny opis - MT9V023_17 |
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