Figure 2From: Unsupervised estimation of signal-dependent CCD camera noiseOriginal piecewise-smooth test image taken from [[5]]: (a) noise-free original; (b) corrupted with simulated optoelectronic noise (77% photon, 23% electronic, SNR=17 dB); (c) variance-to-mean scatterplot of original; (d) variance-to-mean scatterplot of noisy version.Back to article page