446 lines
16 KiB
Python
Executable File
446 lines
16 KiB
Python
Executable File
#!/usr/bin/python
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import unittest
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import math
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#import logging
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#logging.basicConfig(level = logging.DEBUG)
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import gi
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gi.require_version('Vips', '8.0')
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from gi.repository import Vips
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Vips.leak_set(True)
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# an expanding zip ... if either of the args is a scalar or a one-element list,
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# duplicate it down the other side
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def zip_expand(x, y):
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# handle singleton list case
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if isinstance(x, list) and len(x) == 1:
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x = x[0]
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if isinstance(y, list) and len(y) == 1:
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y = y[0]
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if isinstance(x, list) and isinstance(y, list):
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return list(zip(x, y))
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elif isinstance(x, list):
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return [[i, y] for i in x]
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elif isinstance(y, list):
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return [[x, j] for j in y]
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else:
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return [[x, y]]
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class TestCreate(unittest.TestCase):
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# test a pair of things which can be lists for approx. equality
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def assertAlmostEqualObjects(self, a, b, places = 4, msg = ''):
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# print 'assertAlmostEqualObjects %s = %s' % (a, b)
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for x, y in zip_expand(a, b):
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self.assertAlmostEqual(x, y, places = places, msg = msg)
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def test_black(self):
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im = Vips.Image.black(100, 100)
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self.assertEqual(im.width, 100)
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self.assertEqual(im.height, 100)
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self.assertEqual(im.format, Vips.BandFormat.UCHAR)
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self.assertEqual(im.bands, 1)
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for i in range (0, 100):
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pixel = im(i, i)
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self.assertEqual(len(pixel), 1)
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self.assertEqual(pixel[0], 0)
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im = Vips.Image.black(100, 100, bands = 3)
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self.assertEqual(im.width, 100)
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self.assertEqual(im.height, 100)
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self.assertEqual(im.format, Vips.BandFormat.UCHAR)
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self.assertEqual(im.bands, 3)
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for i in range (0, 100):
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pixel = im(i, i)
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self.assertEqual(len(pixel), 3)
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self.assertAlmostEqualObjects(pixel, [0, 0, 0])
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def test_buildlut(self):
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M = Vips.Image.new_from_array([[0, 0],
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[255, 100]])
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lut = M.buildlut()
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self.assertEqual(lut.width, 256)
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self.assertEqual(lut.height, 1)
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self.assertEqual(lut.bands, 1)
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p = lut(0, 0)
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self.assertEqual(p[0], 0.0)
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p = lut(255, 0)
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self.assertEqual(p[0], 100.0)
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p = lut(10, 0)
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self.assertEqual(p[0], 100 * 10.0 / 255.0)
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M = Vips.Image.new_from_array([[0, 0, 100],
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[255, 100, 0],
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[128, 10, 90]])
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lut = M.buildlut()
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self.assertEqual(lut.width, 256)
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self.assertEqual(lut.height, 1)
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self.assertEqual(lut.bands, 2)
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p = lut(0, 0)
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self.assertAlmostEqualObjects(p, [0.0, 100.0])
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p = lut(64, 0)
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self.assertAlmostEqualObjects(p, [5.0, 95.0])
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def test_eye(self):
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im = Vips.Image.eye(100, 90)
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self.assertEqual(im.width, 100)
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self.assertEqual(im.height, 90)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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self.assertEqual(im.max(), 1.0)
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self.assertEqual(im.min(), -1.0)
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im = Vips.Image.eye(100, 90, uchar = True)
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self.assertEqual(im.width, 100)
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self.assertEqual(im.height, 90)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.UCHAR)
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self.assertEqual(im.max(), 255.0)
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self.assertEqual(im.min(), 0.0)
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def test_fractsurf(self):
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im = Vips.Image.fractsurf(100, 90, 2.5)
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self.assertEqual(im.width, 100)
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self.assertEqual(im.height, 90)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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def test_gaussmat(self):
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im = Vips.Image.gaussmat(1, 0.1)
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self.assertEqual(im.width, 5)
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self.assertEqual(im.height, 5)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.DOUBLE)
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self.assertEqual(im.max(), 20)
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total = im.avg() * im.width * im.height
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scale = im.get("scale")
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self.assertEqual(total, scale)
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p = im(im.width / 2, im.height / 2)
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self.assertEqual(p[0], 20.0)
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im = Vips.Image.gaussmat(1, 0.1,
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separable = True, precision = "float")
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self.assertEqual(im.width, 5)
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self.assertEqual(im.height, 1)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.DOUBLE)
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self.assertEqual(im.max(), 1.0)
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total = im.avg() * im.width * im.height
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scale = im.get("scale")
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self.assertEqual(total, scale)
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p = im(im.width / 2, im.height / 2)
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self.assertEqual(p[0], 1.0)
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def test_gaussnoise(self):
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im = Vips.Image.gaussnoise(100, 90)
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self.assertEqual(im.width, 100)
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self.assertEqual(im.height, 90)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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im = Vips.Image.gaussnoise(100, 90, sigma = 10, mean = 100)
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self.assertEqual(im.width, 100)
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self.assertEqual(im.height, 90)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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sigma = im.deviate()
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mean = im.avg()
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self.assertAlmostEqual(sigma, 10, places = 0)
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self.assertAlmostEqual(mean, 100, places = 0)
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def test_grey(self):
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im = Vips.Image.grey(100, 90)
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self.assertEqual(im.width, 100)
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self.assertEqual(im.height, 90)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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p = im(0, 0)
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self.assertEqual(p[0], 0.0)
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p = im(99, 0)
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self.assertEqual(p[0], 1.0)
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p = im(0, 89)
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self.assertEqual(p[0], 0.0)
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p = im(99, 89)
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self.assertEqual(p[0], 1.0)
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im = Vips.Image.grey(100, 90, uchar = True)
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self.assertEqual(im.width, 100)
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self.assertEqual(im.height, 90)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.UCHAR)
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p = im(0, 0)
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self.assertEqual(p[0], 0)
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p = im(99, 0)
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self.assertEqual(p[0], 255)
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p = im(0, 89)
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self.assertEqual(p[0], 0)
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p = im(99, 89)
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self.assertEqual(p[0], 255)
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def test_identity(self):
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im = Vips.Image.identity()
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self.assertEqual(im.width, 256)
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self.assertEqual(im.height, 1)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.UCHAR)
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p = im(0, 0)
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self.assertEqual(p[0], 0.0)
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p = im(255, 0)
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self.assertEqual(p[0], 255.0)
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p = im(128, 0)
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self.assertEqual(p[0], 128.0)
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im = Vips.Image.identity(ushort = True)
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self.assertEqual(im.width, 65536)
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self.assertEqual(im.height, 1)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.USHORT)
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p = im(0, 0)
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self.assertEqual(p[0], 0)
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p = im(99, 0)
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self.assertEqual(p[0], 99)
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p = im(65535, 0)
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self.assertEqual(p[0], 65535)
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def test_invertlut(self):
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lut = Vips.Image.new_from_array([[0.1, 0.2, 0.3, 0.1],
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[0.2, 0.4, 0.4, 0.2],
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[0.7, 0.5, 0.6, 0.3]])
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im = lut.invertlut()
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self.assertEqual(im.width, 256)
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self.assertEqual(im.height, 1)
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self.assertEqual(im.bands, 3)
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self.assertEqual(im.format, Vips.BandFormat.DOUBLE)
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p = im(0, 0)
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self.assertAlmostEqualObjects(p, [0, 0, 0])
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p = im(255, 0)
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self.assertAlmostEqualObjects(p, [1, 1, 1])
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p = im(0.2 * 255, 0)
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self.assertAlmostEqual(p[0], 0.1, places = 2)
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p = im(0.3 * 255, 0)
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self.assertAlmostEqual(p[1], 0.1, places = 2)
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p = im(0.1 * 255, 0)
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self.assertAlmostEqual(p[2], 0.1, places = 2)
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def test_logmat(self):
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im = Vips.Image.logmat(1, 0.1)
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self.assertEqual(im.width, 7)
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self.assertEqual(im.height, 7)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.DOUBLE)
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self.assertEqual(im.max(), 20)
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total = im.avg() * im.width * im.height
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scale = im.get("scale")
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self.assertEqual(total, scale)
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p = im(im.width / 2, im.height / 2)
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self.assertEqual(p[0], 20.0)
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im = Vips.Image.logmat(1, 0.1,
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separable = True, precision = "float")
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self.assertEqual(im.width, 7)
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self.assertEqual(im.height, 1)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.DOUBLE)
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self.assertEqual(im.max(), 1.0)
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total = im.avg() * im.width * im.height
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scale = im.get("scale")
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self.assertEqual(total, scale)
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p = im(im.width / 2, im.height / 2)
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self.assertEqual(p[0], 1.0)
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def test_mask_butterworth_band(self):
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im = Vips.Image.mask_butterworth_band(128, 128, 2, 0.5, 0.5, 0.7, 0.1)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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self.assertAlmostEqual(im.max(), 1, places = 2)
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p = im(32, 32)
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self.assertEqual(p[0], 1.0)
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im = Vips.Image.mask_butterworth_band(128, 128, 2, 0.5, 0.5, 0.7, 0.1,
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uchar = True, optical = True)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.UCHAR)
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self.assertEqual(im.max(), 255)
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p = im(32, 32)
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self.assertEqual(p[0], 255.0)
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p = im(64, 64)
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self.assertEqual(p[0], 255.0)
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im = Vips.Image.mask_butterworth_band(128, 128, 2, 0.5, 0.5, 0.7, 0.1,
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uchar = True, optical = True,
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nodc = True)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.UCHAR)
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self.assertEqual(im.max(), 255)
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p = im(32, 32)
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self.assertEqual(p[0], 255.0)
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p = im(64, 64)
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self.assertNotEqual(p[0], 255)
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def test_mask_butterworth(self):
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im = Vips.Image.mask_butterworth(128, 128, 2, 0.7, 0.1,
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nodc = True)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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self.assertAlmostEqual(im.min(), 0, places = 2)
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p = im(0, 0)
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self.assertEqual(p[0], 0.0)
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v, x, y = im.maxpos()
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self.assertEqual(x, 64)
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self.assertEqual(y, 64)
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im = Vips.Image.mask_butterworth(128, 128, 2, 0.7, 0.1,
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optical = True, uchar = True)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.UCHAR)
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self.assertAlmostEqual(im.min(), 0, places = 2)
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p = im(64, 64)
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self.assertEqual(p[0], 255)
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def test_mask_butterworth_ring(self):
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im = Vips.Image.mask_butterworth_ring(128, 128, 2, 0.7, 0.1, 0.5,
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nodc = True)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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p = im(45, 0)
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self.assertAlmostEqual(p[0], 1.0, places = 4)
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v, x, y = im.minpos()
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self.assertEqual(x, 64)
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self.assertEqual(y, 64)
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def test_mask_fractal(self):
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im = Vips.Image.mask_fractal(128, 128, 2.3)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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def test_mask_gaussian_band(self):
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im = Vips.Image.mask_gaussian_band(128, 128, 0.5, 0.5, 0.7, 0.1)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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self.assertAlmostEqual(im.max(), 1, places = 2)
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p = im(32, 32)
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self.assertEqual(p[0], 1.0)
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def test_mask_gaussian(self):
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im = Vips.Image.mask_gaussian(128, 128, 0.7, 0.1,
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nodc = True)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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self.assertAlmostEqual(im.min(), 0, places = 2)
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p = im(0, 0)
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self.assertEqual(p[0], 0.0)
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def test_mask_gaussian_ring(self):
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im = Vips.Image.mask_gaussian_ring(128, 128, 0.7, 0.1, 0.5,
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nodc = True)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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p = im(45, 0)
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self.assertAlmostEqual(p[0], 1.0, places = 3)
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def test_mask_ideal_band(self):
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im = Vips.Image.mask_ideal_band(128, 128, 0.5, 0.5, 0.7)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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self.assertAlmostEqual(im.max(), 1, places = 2)
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p = im(32, 32)
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self.assertEqual(p[0], 1.0)
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def test_mask_ideal(self):
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im = Vips.Image.mask_ideal(128, 128, 0.7,
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nodc = True)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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self.assertAlmostEqual(im.min(), 0, places = 2)
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p = im(0, 0)
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self.assertEqual(p[0], 0.0)
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def test_mask_gaussian_ring(self):
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im = Vips.Image.mask_ideal_ring(128, 128, 0.7, 0.5,
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nodc = True)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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p = im(45, 0)
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self.assertAlmostEqual(p[0], 1.0, places = 3)
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def test_sines(self):
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im = Vips.Image.sines(128, 128)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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def test_text(self):
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im = Vips.Image.text("Hello, world!")
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self.assertTrue(im.width > 10)
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self.assertTrue(im.height > 10)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.UCHAR)
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self.assertEqual(im.max(), 255)
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self.assertEqual(im.min(), 0)
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def test_tonelut(self):
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im = Vips.Image.tonelut()
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.USHORT)
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self.assertEqual(im.width, 32768)
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self.assertEqual(im.height, 1)
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self.assertTrue(im.hist_ismonotonic())
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def test_xyz(self):
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im = Vips.Image.xyz(128, 128)
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self.assertEqual(im.bands, 2)
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self.assertEqual(im.format, Vips.BandFormat.UINT)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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p = im(45, 35)
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self.assertAlmostEqualObjects(p, [45, 35])
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def test_zone(self):
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im = Vips.Image.zone(128, 128)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 128)
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self.assertEqual(im.bands, 1)
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self.assertEqual(im.format, Vips.BandFormat.FLOAT)
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if __name__ == '__main__':
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unittest.main()
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