p value, n = 1401 (1C: 393, SC: 1008) | ||||
---|---|---|---|---|
Dense area selection method | ||||
Image feature | (1) Percentile | (2) Entropy | (3) Otsu's method | Technical feature description - all listed features are based on the identified dense area |
F1 | 0.058 | 0.069 | 0.575 | DC coefficient of two-dimensional discrete cosine transform |
F2 | 0.636 | 0.006 | 0.233 | The approximation coefficient of the multilevel discrete two-dimensional wavelet transform |
F3 | 0.002 | 0.660 | 0.006 | The max coefficient of the two-dimensional discrete Fourier transform of the local range filter |
F4 | 0.193 | 0.697 | 0.037 | Kurtosis of the intensity histogram |
F5 | 0.388 | 0.334 | 0.053 | Skewness of the intensity histogram |
F6 | 0.074 | 0.026 | 0.015 | Entropy of the intensity histogram |
F7 | 0.282 | 0.031 | 0.969 | The mean of entropy-filtered selected area |
F8 | 0.467 | 0.036 | 0.793 | Entropy of the complex imaginary part of the convolved selected area with log-Gabor filters |
F9 | 0.624 | 0.045 | 0.969 | Entropy of the complex real part of the convolved selected area with log-Gabor filters |
F10 | 0.582 | 0.025 | 0.676 | Entropy of the magnitude part of the convolved selected area with log-Gabor filters |
F11 | 0.020 | 0.148 | 0.235 | The max coefficient of the two-dimensional discrete Fourier transform |
F12 | 0.995 | 0.026 | 0.234 | Entropy of the normalized co-occurrence matrix |
F14 | 0.600 | 0.751 | 0.326 | The max coefficient of the two-dimensional discrete Fourier transform of the Hessian filter |
F16 | 0.058 | 0.088 | 0.582 | The max coefficient of the log of the magnitude part of the discrete cosine transform |
F17 | 0.020 | 0.146 | 0.235 | The max coefficient of the log of the magnitude part of the discrete Fourier transform |
F18 | 0.111 | 0.078 | 0.443 | The fourth central moment |
F19 | 0.012 | 0.726 | 0.019 | Number of separate blobs |
F20 | 0.312 | 0.015 | 0.129 | Solidity |
F21 | 0.001 | 0.970 | 0.007 | Eccentricity |
F22 | 0.966 | 0.240 | 0.365 | Euler number |
F24 | <0.001 | 0.931 | 0.006 | Skewness of the normalized singular value decomposition/its standard deviation |
F25 | 0.040 | 0.164 | 0.291 | Singular value decomposition |
F26 | 0.062 | 0.269 | 0.795 | Number of holes within the selected area (low intensity surrounded by high intensity) |
F27 | 0.063 | 0.026 | 0.009 | Interquartile range of the intensity histogram |
F33 | 0.225 | 0.317 | 0.322 | Kurtosis of the projection along the Y axis |
F34 | 0.065 | 0.136 | 0.201 | Kurtosis of the projection along the X axis |
F35 | 0.002 | 0.211 | 0.582 | Perimeter of the selected area |
F37 | 0.317 | 0.040 | 0.415 | Mean intensity |
F39 | 0.358 | 0.168 | 0.283 | Median intensity |
F40 | 0.145 | 0.012 | 0.001 | Skewness of the intensity gradient |
F41 | 0.172 | 0.032 | 0.946 | Energy property of the co-occurrence matrix of the selected area - horizontal shift two pixels |
F42 | 0.261 | 0.031 | 0.984 | Energy property of the co-occurrence matrix of the selected area - diagonal shift eight pixels |