| area_center_gray | Compute the area and center of gravity of a region in a gray value image. |
| cooc_feature_image | Calculate a co-occurrence matrix and derive gray value features thereof. |
| cooc_feature_matrix | Calculate gray value features from a co-occurrence matrix. |
| elliptic_axis_gray | Compute the orientation and major axes of a region in a gray value image. |
| entropy_gray | Determine the entropy and anisotropy of images. |
| fit_surface_first_order | Calculate gray value moments and approximation by a first order surface (plane). |
| fit_surface_second_order | Calculate gray value moments and approximation by a second order surface. |
| fuzzy_entropy | Determine the fuzzy entropy of regions. |
| fuzzy_perimeter | Calculate the fuzzy perimeter of a region. |
| gen_cooc_matrix | Calculate the co-occurrence matrix of a region in an image. |
| gray_histo | Calculate the gray value distribution. |
| gray_histo_abs | Calculate the gray value distribution. |
| gray_projections | Calculate horizontal and vertical gray-value projections. |
| histo_2dim | Calculate the histogram of two-channel gray value images. |
| intensity | Calculate the mean and deviation of gray values. |
| min_max_gray | Determine the minimum and maximum gray values within regions. |
| moments_gray_plane | Calculate gray value moments and approximation by a plane. |
| plane_deviation | Calculate the deviation of the gray values from the approximating image plane. |
| select_gray | Select regions based on gray value features. |
| shape_histo_all | Determine a histogram of features along all threshold values. |
| shape_histo_point | Determine a histogram of features along all threshold values. |