library("rplatypus")
mask_coverage(matrix(c(1, 2, 2, 1), 2), labels = binary_labels) class label pixels fraction
1 1 background 2 0.5
2 2 object 2 0.5
binary_colormap is black background, white foreground: the ordinary two-class problem. voc_colormap is the twenty-one class palette used by Pascal VOC, kept because datasets and other people’s masks still arrive in it.
binary_colormap
binary_labels
voc_colormap
voc_labels
A list of RGB triples, or a character vector of names.
The labels are the matching class names, for figure legends and mask_coverage(). Position in the list is the class index throughout, counting from 1.
library("rplatypus")
mask_coverage(matrix(c(1, 2, 2, 1), 2), labels = binary_labels) class label pixels fraction
1 1 background 2 0.5
2 2 object 2 0.5