Package index • OpenImageR

All functions

Augmentation(): image augmentations of a matrix, data frame, array or a list of 3-dimensional arrays (where the third dimension is equal to 3)
GaborFeatureExtract: Gabor Feature Extraction
HOG(): calculate the HOG (Histogram of oriented gradients) for an image
HOG_apply(): calculate the HOG (Histogram of oriented gradients) for a matrix, array or a folder of images
List_2_Array(): convert a list of matrices to an array of matrices
MinMaxObject(): minimum and maximum values of vector, matrix, data frame or array
NormalizeObject(): normalize a vector, matrix or array (in the range between 0 and 1)
RGB_to_HSV(): Conversion of RGB to HSV colour type
RGB_to_Lab(): Conversion of RGB to Lab colour type
ZCAwhiten(): zca whiten of an image
average_hash(): calculation of the 'average hash' of an image
convolution(): convolution
cropImage(): crop 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, Scharr, Sobel)
flipImage(): flip image horizontally or vertically
gamma_correction(): Gamma correction
getAffineTransform(): Get Affine Transform
hash_apply(): calculate the binary or the hexadecimal hash for a matrix, array or a folder of images for the average_hash, phash or dhash functions
imageShow(): display an image
image_thresholding(): image thresholding
invariant_hash(): invariant hashing (caclulation of the hamming or the levenshtein distance when the image is flipped, rotated or cropped)
load_binary(): loads either 2- or 3-dimensional data (where the third dimension is equal to 3) from a binary file
norm_matrix_range(): Normalize a matrix to specific range of values
padding(): Padding of matrices or n-dimensional arrays with a user specified value
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 'bilinear' method
rgb_2gray(): convert an RGB image to Gray
rotateFixed(): Rotate an image by 90, 180, 270 degrees
rotateImage(): Rotate an image using the 'nearest' or 'bilinear' method
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
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 third dimension is equal to 3) data to a file