Pixelwise Estimation of Signal-Dependent Image Noise Using Deep Residual Learning

Figure 2

Image processing pipeline (ISP). In the ISP, light signals are converted to the raw image through a color filter array (CFA) and then go through white balancing and demosaicing to result in a linear RGB image. This linear RGB image further goes through denoising, color space conversion, and finally nonlinear gamma correction to produce the final sRGB image.