Figure 10 | Scientific Reports

Figure 10

From: Tomographic Particle Image Velocimetry using Smartphones and Colored Shadows

Figure 10

Steps for preprocessing of the raw image file, showing the same region as in Fig. 9(b). (a) The raw image from the Bayer filter array in gray-scale intensity. (bd) Separation of the color channels based on pixel location in the array, with other pixels filled by zeros. (ef) Resulting images after demosaic interpolation (Malvar et al.29). (hj) Final images for each color after background subtraction and filtering by local standard deviation levels.

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