Fig. 6
From: Innovative colorimetric thermal study of methylcellulose hydrogel via smartphone imaging
Histograms of pixel intensity for the blue channel upon heating at selected temperatures. Subplots 1,2 \(\:(23.4\left[{C}^{o}\right],\:54.9\left[{C}^{o}\right]\), Subplot 3 \(\:(56.6\left[{C}^{o}\right]\), Subplot 4 \(\:(61.7\left[{C}^{o}\right]\), Subplot 5 \(\:\left(68.3\left[{C}^{o}\right]\right)\), and Subplot 6 \(\:\left(75.4\left[{C}^{o}\right]\right)\).
