| Augmentation | image augmentations of a matrix, data frame, array or a list... |
| average_hash | calculation of the 'average hash' of an image |
| convolution | convolution |
| cropImage | crop an image |
| crop_image_secondary | crop an image in R [ for RGB or grey images ] |
| delationErosion | Delation or Erosion of an image |
| dhash | calculation of the 'dhash' of an image |
| dilationErosion | Dilation or Erosion of an image |
| down_sample_image | downsampling an image ( by a factor ) using gaussian blur |
| edge_detection | edge detection (Frei_chen, LoG, Prewitt, Roberts_cross,... |
| flipImage | flip image horizontally or vertically |
| func_chech_range | function to check the range of values of an image or... |
| func_transform | secondary function for HOG_apply |
| GaborFeatureExtract | Gabor Feature Extraction |
| gamma_correction | Gamma correction |
| gaussian_kernel | gaussian-kernel |
| getAffineTransform | Get Affine Transform |
| hash_apply | calculate the binary or the hexadecimal hash for a matrix,... |
| HOG | calculate the HOG (Histogram of oriented gradients) for an... |
| HOG_apply | calculate the HOG (Histogram of oriented gradients) for a... |
| imageShow | display an image |
| image_thresholding | image thresholding |
| invariant_hash | invariant hashing (caclulation of the hamming or the... |
| laplacian_kernels | laplacian kernels |
| List_2_Array | convert a list of matrices to an array of matrices |
| load_binary | loads either 2- or 3-dimensional data (where the third... |
| MinMaxObject | minimum and maximum values of vector, matrix, data frame or... |
| NormalizeObject | normalize a vector, matrix or array (in the range between 0... |
| norm_matrix_range | Normalize a matrix to specific range of values |
| padding | Padding of matrices or n-dimensional arrays with a user... |
| phash | calculation of the 'phash' of an image |
| readImage | this function reads various types of images |
| resizeImage | resize an image using the 'nearest neighbors' or the... |
| rgb_2gray | convert an RGB image to Gray |
| RGB_to_HSV | Conversion of RGB to HSV colour type |
| RGB_to_Lab | Conversion of RGB to Lab colour type |
| rotateFixed | Rotate an image by 90, 180, 270 degrees |
| rotateImage | Rotate an image using the 'nearest' or 'bilinear' method |
| runUI | launcher for the shiny application |
| sec_gaus_bl | secondary function for downsampling |
| sec_resiz_array | secondary function for 'resizeImage' [ array ] |
| superpixel_bbox | Bounding box for the superpixel labels |
| superpixel_bbox_subset | Bounding box for a subset of superpixel labels |
| superpixels | SLIC and SLICO superpixel implementations |
| switch_filter | secondary function for edge_detection function |
| switch_hashing | if-else function for hashing |
| switch_invariant | secondary function for invariant_hash |
| translation | image translation |
| uniform_filter | uniform filter (convolution with uniform kernel) |
| verify_image_extension | Verify that the input image extension is valid |
| warpAffine | Warp Affine |
| writeImage | This function writes 2- or 3-dimensional image (where the... |
| ZCAwhiten | zca whiten of an image |
