Man pages for tsuda16k/pictplot
Image processing functions
| angle_distribution | Analyze edge distribution |
| apply_oval_mask | Add an oval mask to an image |
| as.data.frame.nimg | nimg to data frame conversion |
| box_blur | Box blur |
| box_variance | Box variance |
| CIELAB_visualize | Visualize CIELAB image |
| cimg2nimg | cimg to nimg conversion |
| circular_color_stat | Circular color statistics |
| clamping | Clamp values to a minimum and maximum value |
| colorder | change the column order of a data frame |
| color_dodge | Color dodge |
| create_dead_leaves | Create a 'dead-leaves' image |
| cubic_spline | Calculate a cubic spline |
| DBC | Calculate the fractal dimension of an image using 3D box... |
| edge_canny | Apply the Canny edge detection |
| edge_density | Edge density of an image |
| edge_diff | Edge detection by finite differences |
| edge_maxmin | Edge detection by Max-Min method |
| edge_prewitt | Prewitt edge detection |
| edge_sobel | Sobel edge detection |
| edge_variance | Edge detection by variance method |
| eucdist | Calculate the Euclidean distance between two points |
| fade_border | Add a fading border to an image |
| fade_mask | Add a fading border to an image region |
| fft_amplitude | Calculate fft amplitude |
| fft_angular_mask | Create fft angular mask |
| fft_filter | Apply fft filter |
| fft_lowpass_kernel | Get lowpass kernel |
| fft_noise | Generate a white noise image |
| fft_phase | Calculate fft phase |
| fft_phase_scramble | fft phase scrambling |
| fft_shift | Shift fft image |
| fft_slope | Calculate orientation-averaged amplitude |
| fft_spectrum | Calculate fft amplitude and phase |
| filter_v1 | Apply V1 filters to an image |
| find_circle | Find the circle passing through three points |
| for_fft | forward fft |
| Fractal2D | Calculate the fractal dimension of an image using the... |
| gabor_kernel | Create a gabor filter kernel |
| gauss_kernel | Create a Gaussian kernel |
| get_A | Extract the Alpha channel from an image |
| get_alpha | Extract the alpha channel from an image |
| get_arc_mask | Create an arc mask image |
| get_B | Extract the Blue channel from an image |
| get_channel | Extract a color channel from an image |
| get_circular_mask | Create a circular mask image |
| get_G | Extract the Green channel from an image |
| get_gradient | Get a gradient image |
| get_hog | Calculate PHOG descriptor |
| get_L | Get L channel of CIELAB color space |
| get_moments | Get moment statistics of a vector/array |
| get_oval_mask | Create a oval mask image |
| get_R | Extract the Red channel from an image |
| guided_filter | Apply the guided filter |
| im_blend | Alpha blending of two images |
| im_blur | Blur an image |
| im_combine | Combine images |
| im_conv | Convolve an image |
| im_coord | Get pixel coordinates for an image, as an image |
| im_crop | Image cropping |
| im_crop_square | Make an image square shaped |
| im_cx | X coordinate of image center |
| im_cy | Y coordinate of image center |
| im_diagonal | Get the diagonal length of an image |
| im_diff | Mean squared error between two images |
| im_distribute | Shift and scale the distribution of pixel values |
| im_flip | Flip an image |
| im_flip_position | Flip an image |
| im_get | Image cropping |
| im_gray | Convert to grayscale |
| im_height | Get image height |
| im_load | Load image from file or URL |
| im_load_dir | Load all images in a directory and return them as a list |
| im_moments | Get moment statistics of an image |
| im_mono | Create a monotone image |
| im_nc | The number of color channel of an image |
| im_nchannel | The number of color channel of an image |
| im_noise | Create a white noise image |
| im_npix | Total number of pixels of an image |
| im_pad | Pad image with n pixels |
| im_pile | Pile two images |
| im_pixelate | Apply a mosaic effect |
| im_raise | Raise pixel values |
| im_randomize | Apply a pixel randomization effect |
| im_random_pixelate | Apply a mosaic effect followed by position randomization |
| im_rep | Replicate a channel along color dimension |
| im_resize | Resize image |
| im_resize_limit | Resize image |
| im_resize_limit_min | Resize image |
| im_resize_scale | Resize image by a scale factor |
| im_reverse | Reverse pixel values |
| im_rotate | Rotate an image |
| im_save | Save an image to disk |
| im_serialize | Convert an image to a numeric vector Pixel values of R... |
| im_serialize_inv | Convert a serialized image to an image |
| im_shift | Image shift operation |
| im_size | Get image width and height |
| im_symmetry | Analyze image symmetry |
| im_threshold | Threshold grayscale image |
| im_tricolored | Force an image to have three and only three color channels |
| im_width | Get image width |
| inv_fft | inverse fft |
| is_inside_ellipse | Check if a point is inside or outside an ellipse |
| is.nimg | Check if an object is a nimg object |
| Lab2RGB | Lab to RGB conversion |
| Lab2sRGB | Lab to sRGB conversion |
| Lab2XYZ | Lab to XYZ conversion |
| logspace | Generates a logarithmically spaced sequence |
| merge_color | Merge a list of images into an image |
| MinMax | Calculate the range of values |
| nimg | Create a nimg object |
| nimg2cimg | nimg to cimg conversion |
| paint_arc | Draw an arc to an image |
| paint_circle | Draw a circle to an image |
| palette_extract | Extract the color palette of an image This function performs... |
| palette_visualize | Visualize the color palette of an image |
| PHOG_descriptor | Calculate PHOG descriptor |
| PHOG_features | Calculate PHOG features |
| pipe | Pipe operator |
| plot.nimg | Display an image |
| pow | Power operation |
| pplot | Display an image |
| ramp_threshold | Apply a thresholding function |
| regatta | An image. |
| remove_alpha | Remove alpha channel from an image |
| remove_channel | Remove a channel(s) from an image |
| rescaling | Rescale numeric vector to have a specified range |
| rescaling01 | Rescale numeric vector to have a range between 0 to 1 |
| RGB2Lab | RGB to Lab conversion |
| RGB2sRGB | linear RGB to sRGB conversion |
| RGB2XYZ | RGB to XYZ conversion |
| RGB2YUV | RGB to YUV conversion |
| smart.round | Round floats to integers while preserving their sum ref.... |
| split_color | Split color channel |
| sRGB2HSL | sRGB to HSL conversion |
| sRGB2Lab | sRGB to Lab conversion |
| sRGB2RGB | sRGB to linear RGB conversion |
| sRGB2XYZ | sRGB to XYZ conversion |
| sRGB2YUV | sRGB to YUV conversion |
| stat_filter | Apply statistical filter |
| v1_kernels | Create a Gabor filter bank |
| V1_params | Get V1 filter parameters |
| vec_shift | Shift operation |
| XYZ2Lab | XYZ to Lab conversion |
| XYZ2RGB | XYZ to RGB conversion |
| XYZ2sRGB | XYZ to sRGB conversion |
| YUV2RGB | YUV to RGB conversion |
| YUV2sRGB | YUV to sRGB conversion |
