Figure 1

(A) Feature extraction schematic diagram to build a feature array for each CXR image using the Texture, FFT, Wavelet, GLCM, and GLDM methods (See method section for the description of the features). (B) A schematic diagram of creating a feature pool for 420 CXR images and applying a feature reduction method. (C,D) Correlation analysis of features. The heat map (C) and histogram representation (D) of the Pearson correlation coefficients.