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- import numpy as np
- from labelme.utils import draw as draw_module
- from labelme.utils import shape as shape_module
- from .util import get_img_and_lbl
- # -----------------------------------------------------------------------------
- def test_label_colormap():
- N = 255
- colormap = draw_module.label_colormap(N=N)
- assert colormap.shape == (N, 3)
- def test_label2rgb():
- img, lbl, label_names = get_img_and_lbl()
- n_labels = len(label_names)
- viz = draw_module.label2rgb(lbl=lbl, n_labels=n_labels)
- assert lbl.shape == viz.shape[:2]
- assert viz.dtype == np.uint8
- viz = draw_module.label2rgb(lbl=lbl, img=img, n_labels=n_labels)
- assert img.shape[:2] == lbl.shape == viz.shape[:2]
- assert viz.dtype == np.uint8
- def test_draw_label():
- img, lbl, label_names = get_img_and_lbl()
- viz = draw_module.draw_label(lbl, img, label_names=label_names)
- assert viz.shape[:2] == img.shape[:2] == lbl.shape[:2]
- assert viz.dtype == np.uint8
- def test_draw_instances():
- img, lbl, label_names = get_img_and_lbl()
- labels_and_masks = {l: lbl == l for l in np.unique(lbl) if l != 0}
- labels, masks = zip(*labels_and_masks.items())
- masks = np.asarray(masks)
- bboxes = shape_module.masks_to_bboxes(masks)
- captions = [label_names[l] for l in labels]
- viz = draw_module.draw_instances(img, bboxes, labels, captions=captions)
- assert viz.shape[:2] == img.shape[:2]
- assert viz.dtype == np.uint8
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