This app was created in 2014 and employs Single Linear Correlation technics for univariate analysis, Principal Component Analysis (PCA) and HCA for multivariate exploratory analysis and Partial Least Squares (PLS) for multivariate calibration. The image data are acquired using the device main camera and converted in RGB histograms. In addition, apart color channels of RGB, HSV, HSL and HSI systems are used during the univariate and multivariate processing. It is possible to send by e-mail the im