zhreshold closed pull request #9496: Draw labels name
URL: https://github.com/apache/incubator-mxnet/pull/9496
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diff --git a/python/mxnet/image/detection.py b/python/mxnet/image/detection.py
index caaa4006302..3b9f64e1220 100644
--- a/python/mxnet/image/detection.py
+++ b/python/mxnet/image/detection.py
@@ -803,7 +803,7 @@ def check_label_shape(self, label_shape):
raise ValueError(msg)
def draw_next(self, color=None, thickness=2, mean=None, std=None,
clip=True,
- waitKey=None, window_name='draw_next'):
+ waitKey=None, window_name='draw_next', id2labels=None):
"""Display next image with bounding boxes drawn.
Parameters
@@ -822,6 +822,8 @@ def draw_next(self, color=None, thickness=2, mean=None,
std=None, clip=True,
Hold the window for waitKey milliseconds if set, skip ploting if
None
window_name : str
Plot window name if waitKey is set.
+ id2labels : dict
+ Mapping of labels id to labels name.
Returns
-------
@@ -889,6 +891,17 @@ def draw_next(self, color=None, thickness=2, mean=None,
std=None, clip=True,
y2 = int(label[i, 4] * height)
bc = np.random.rand(3) * 255 if not color else color
cv2.rectangle(image, (x1, y1), (x2, y2), bc, thickness)
+ if id2labels is not None:
+ cls_id = int(label[i, 0])
+ if cls_id in id2labels:
+ cls_name = id2labels[cls_id]
+ text = "{:s}".format(cls_name)
+ font = cv2.FONT_HERSHEY_SIMPLEX
+ font_scale = 0.5
+ text_height = cv2.getTextSize(text, font,
font_scale, 2)[0][1]
+ tc = (255, 255, 255)
+ tpos = (x1 + 5, y1 + text_height + 5)
+ cv2.putText(image, text, tpos, font, font_scale,
tc, 2)
if waitKey is not None:
cv2.imshow(window_name, image)
cv2.waitKey(waitKey)
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