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Add test cases for colors support for gen_image_ops.draw_bounding_box_v2

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Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This commit is contained in:
Yong Tang 2018-01-01 23:52:07 +00:00
parent 8e6475f3fe
commit 777534ff7e
1 changed files with 30 additions and 7 deletions
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35
tensorflow/python/kernel_tests/draw_bounding_box_op_test.py
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@ -23,6 +23,7 @@ import numpy as np
from tensorflow.python.framework import dtypes
from tensorflow.python.framework import ops
from tensorflow.python.ops import array_ops
from tensorflow.python.ops import gen_image_ops
from tensorflow.python.ops import image_ops
from tensorflow.python.ops import image_ops_impl
from tensorflow.python.ops import math_ops
@ -54,17 +55,21 @@ class DrawBoundingBoxOpTest(test.TestCase):
image[height - 1, 0:width, 0:depth] = color
return image
def _testDrawBoundingBoxColorCycling(self, img):
def _testDrawBoundingBoxColorCycling(self, img, colors=None):
"""Tests if cycling works appropriately.
Args:
img: 3-D numpy image on which to draw.
"""
# THIS TABLE MUST MATCH draw_bounding_box_op.cc
color_table = np.asarray([[1, 1, 0, 1], [0, 0, 1, 1], [1, 0, 0, 1],
[0, 1, 0, 1], [0.5, 0, 0.5, 1], [0.5, 0.5, 0, 1],
[0.5, 0, 0, 1], [0, 0, 0.5, 1], [0, 1, 1, 1],
[1, 0, 1, 1]])
default_color_table = np.asarray([[1, 1, 0, 1], [0, 0, 1, 1],
[1, 0, 0, 1], [0, 1, 0, 1],
[0.5, 0, 0.5, 1], [0.5, 0.5, 0, 1],
[0.5, 0, 0, 1], [0, 0, 0.5, 1],
[0, 1, 1, 1], [1, 0, 1, 1]])
color_table = default_color_table
if colors is not None:
color_table = colors
assert len(img.shape) == 3
depth = img.shape[2]
assert depth <= color_table.shape[1]
@ -85,9 +90,12 @@ class DrawBoundingBoxOpTest(test.TestCase):
image = ops.convert_to_tensor(image)
image = image_ops_impl.convert_image_dtype(image, dtypes.float32)
image = array_ops.expand_dims(image, 0)
if colors is None:
image = image_ops.draw_bounding_boxes(image, bboxes)
else:
image = gen_image_ops.draw_bounding_boxes_v2(image, bboxes, colors)
with self.cached_session(use_gpu=False) as sess:
op_drawn_image = np.squeeze(self.evaluate(image), 0)
op_drawn_image = np.squeeze(sess.run(image), 0)
self.assertAllEqual(test_drawn_image, op_drawn_image)
def testDrawBoundingBoxRGBColorCycling(self):
@ -105,6 +113,21 @@ class DrawBoundingBoxOpTest(test.TestCase):
image = np.zeros([4, 4, 1], "float32")
self._testDrawBoundingBoxColorCycling(image)
def testDrawBoundingBoxRGBColorCyclingWithColors(self):
"""Test if RGB color cycling works correctly with provided colors."""
image = np.zeros([10, 10, 3], "float32")
colors = np.asarray([[1, 1, 0, 1], [0, 0, 1, 1],
[0.5, 0, 0.5, 1], [0.5, 0.5, 0, 1],
[0, 1, 1, 1], [1, 0, 1, 1]])
self._testDrawBoundingBoxColorCycling(image, colors=colors)
def testDrawBoundingBoxRGBAColorCyclingWithColors(self):
"""Test if RGBA color cycling works correctly with provided colors."""
image = np.zeros([10, 10, 4], "float32")
colors = np.asarray([[0.5, 0, 0.5, 1], [0.5, 0.5, 0, 1],
[0.5, 0, 0, 1], [0, 0, 0.5, 1]])
self._testDrawBoundingBoxColorCycling(image, colors=colors)
if __name__ == "__main__":
test.main()