549 lines
20 KiB
Python
Executable File
549 lines
20 KiB
Python
Executable File
#!/usr/bin/python
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from __future__ import division
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import unittest
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import math
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import os
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import shutil
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#import logging
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#logging.basicConfig(level = logging.DEBUG)
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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 not a list, duplicate it down
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# the other
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def zip_expand(x, y):
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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 TestForeign(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 setUp(self):
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self.matlab_file = "images/sample.mat"
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self.jpeg_file = "images/IMG_4618.jpg"
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self.png_file = "images/sample.png"
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self.tiff_file = "images/sample.tif"
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self.profile_file = "images/sRGB.icm"
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self.analyze_file = "images/t00740_tr1_segm.hdr"
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self.gif_file = "images/cramps.gif"
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self.webp_file = "images/1.webp"
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self.exr_file = "images/sample.exr"
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self.fits_file = "images/WFPC2u5780205r_c0fx.fits"
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self.openslide_file = "images/CMU-1-Small-Region.svs"
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self.pdf_file = "images/ISO_12233-reschart.pdf"
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self.cmyk_pdf_file = "images/cmyktest.pdf"
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self.svg_file = "images/vips-profile.svg"
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self.colour = Vips.Image.jpegload(self.jpeg_file)
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self.mono = self.colour.extract_band(1)
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self.rad = self.colour.float2rad()
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self.cmyk = self.colour.bandjoin(self.mono)
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self.cmyk = self.cmyk.copy(interpretation = Vips.Interpretation.CMYK)
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im = Vips.Image.new_from_file(self.gif_file)
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# some libMagick will load this mono image as RGB, some as mono ... test
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# band 0 to be safe
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self.onebit = im[0] > 128
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# we have test files for formats which have a clear standard
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def file_loader(self, loader, test_file, validate):
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im = Vips.call(loader, test_file)
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validate(self, im)
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im = Vips.Image.new_from_file(test_file)
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validate(self, im)
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def buffer_loader(self, loader, test_file, validate):
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with open(test_file, 'rb') as f:
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buf = f.read()
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im = Vips.call(loader, buf)
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validate(self, im)
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im = Vips.Image.new_from_buffer(buf, "")
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validate(self, im)
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def save_load(self, format, im):
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x = Vips.Image.new_temp_file(format)
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im.write(x)
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self.assertEqual(im.width, x.width)
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self.assertEqual(im.height, x.height)
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self.assertEqual(im.bands, x.bands)
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max_diff = (im - x).abs().max()
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self.assertEqual(max_diff, 0)
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def save_load_file(self, filename, options, im, thresh):
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# yuk!
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# but we can't set format parameters for Vips.Image.new_temp_file()
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im.write_to_file(filename + options)
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x = Vips.Image.new_from_file(filename)
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self.assertEqual(im.width, x.width)
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self.assertEqual(im.height, x.height)
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self.assertEqual(im.bands, x.bands)
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max_diff = (im - x).abs().max()
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self.assertTrue(max_diff <= thresh)
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x = None
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os.unlink(filename)
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def save_load_buffer(self, saver, loader, im, max_diff = 0):
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buf = Vips.call(saver, im)
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x = Vips.call(loader, buf)
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self.assertEqual(im.width, x.width)
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self.assertEqual(im.height, x.height)
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self.assertEqual(im.bands, x.bands)
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self.assertLessEqual((im - x).abs().max(), max_diff)
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def test_vips(self):
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self.save_load_file("test.v", "", self.colour, 0)
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# check we can save and restore metadata
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self.colour.write_to_file("test.v")
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x = Vips.Image.new_from_file("test.v")
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before_exif = self.colour.get_value("exif-data")
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after_exif = x.get_value("exif-data")
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self.assertEqual(len(before_exif), len(after_exif))
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for i in range(len(before_exif)):
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self.assertEqual(before_exif[i], after_exif[i])
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x = None
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os.unlink("test.v")
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def test_jpeg(self):
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x = Vips.type_find("VipsForeign", "jpegload")
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if not x.is_instantiatable():
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print("no jpeg support in this vips, skipping test")
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return
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def jpeg_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqualObjects(a, [6, 5, 3])
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profile = im.get_value("icc-profile-data")
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self.assertEqual(len(profile), 1352)
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self.assertEqual(im.width, 1024)
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self.assertEqual(im.height, 768)
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self.assertEqual(im.bands, 3)
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self.file_loader("jpegload", self.jpeg_file, jpeg_valid)
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self.buffer_loader("jpegload_buffer", self.jpeg_file, jpeg_valid)
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self.save_load_buffer("jpegsave_buffer", "jpegload_buffer", self.colour,
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60)
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self.save_load("%s.jpg", self.mono)
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self.save_load("%s.jpg", self.colour)
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# see if we have exif parsing
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have_exif = False
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x = Vips.Image.new_from_file(self.jpeg_file)
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try:
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# our test image does have this field
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y = x.get_value("exif-ifd0-Orientation")
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have_exif = True
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except:
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pass
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if have_exif:
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# we need a copy of the image to set the new metadata on
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# otherwise we get caching problems
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x = x.copy()
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x.set_value("exif-ifd0-Orientation", "2")
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x.write_to_file("test.jpg")
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x = Vips.Image.new_from_file("test.jpg")
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y = x.get_value("exif-ifd0-Orientation")
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self.assertEqual(y[0], "2")
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os.unlink("test.jpg")
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def test_png(self):
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x = Vips.type_find("VipsForeign", "pngload")
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if not x.is_instantiatable():
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print("no png support in this vips, skipping test")
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return
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def png_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqualObjects(a, [38671.0, 33914.0, 26762.0])
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self.assertEqual(im.width, 290)
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self.assertEqual(im.height, 442)
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self.assertEqual(im.bands, 3)
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self.file_loader("pngload", self.png_file, png_valid)
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self.buffer_loader("pngload_buffer", self.png_file, png_valid)
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self.save_load_buffer("pngsave_buffer", "pngload_buffer", self.colour)
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self.save_load("%s.png", self.mono)
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self.save_load("%s.png", self.colour)
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def test_tiff(self):
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x = Vips.type_find("VipsForeign", "tiffload")
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if not x.is_instantiatable():
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print("no tiff support in this vips, skipping test")
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return
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def tiff_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqualObjects(a, [38671.0, 33914.0, 26762.0])
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self.assertEqual(im.width, 290)
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self.assertEqual(im.height, 442)
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self.assertEqual(im.bands, 3)
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self.file_loader("tiffload", self.tiff_file, tiff_valid)
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self.buffer_loader("tiffload_buffer", self.tiff_file, tiff_valid)
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self.save_load("%s.tif", self.mono)
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self.save_load("%s.tif", self.colour)
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self.save_load("%s.tif", self.cmyk)
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self.save_load("%s.tif", self.onebit)
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self.save_load_file("test-1.tif", "[squash]", self.onebit, 0)
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self.save_load_file("test-2.tif", "[miniswhite]", self.onebit, 0)
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self.save_load_file("test-3.tif", "[squash,miniswhite]", self.onebit, 0)
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self.save_load_file("test-4.tif",
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"[profile=images/sRGB.icm]",
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self.colour, 0)
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self.save_load_file("test-5.tif", "[tile]", self.colour, 0)
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self.save_load_file("test-6.tif", "[tile,pyramid]", self.colour, 0)
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self.save_load_file("test-7.tif",
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"[tile,pyramid,compression=jpeg]", self.colour, 60)
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self.save_load_file("test-8.tif", "[bigtiff]", self.colour, 0)
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self.save_load_file("test-9.tif", "[compression=jpeg]", self.colour, 60)
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self.save_load_file("test-10.tif",
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"[tile,tile-width=256]", self.colour, 10)
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def test_magickload(self):
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x = Vips.type_find("VipsForeign", "magickload")
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if not x.is_instantiatable():
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print("no magick support in this vips, skipping test")
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return
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def gif_valid(self, im):
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a = im(10, 10)
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# some libMagick produce an RGB for this image, some a mono, some
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# rgba :-(
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if len(a) == 4:
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self.assertAlmostEqual(a, [33, 33, 33, 255])
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elif len(a) == 3:
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self.assertAlmostEqual(a, [33, 33, 33])
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else:
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self.assertAlmostEqual(a, [33])
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self.assertEqual(im.bands, len(a))
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self.assertEqual(im.width, 159)
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self.assertEqual(im.height, 203)
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self.file_loader("magickload", self.gif_file, gif_valid)
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self.buffer_loader("magickload_buffer", self.gif_file, gif_valid)
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def test_webp(self):
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x = Vips.type_find("VipsForeign", "webpload")
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if not x.is_instantiatable():
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print("no webp support in this vips, skipping test")
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return
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def webp_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqualObjects(a, [71, 166, 236])
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self.assertEqual(im.width, 550)
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self.assertEqual(im.height, 368)
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self.assertEqual(im.bands, 3)
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self.file_loader("webpload", self.webp_file, webp_valid)
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self.buffer_loader("webpload_buffer", self.webp_file, webp_valid)
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self.save_load_buffer("webpsave_buffer", "webpload_buffer", self.colour,
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50)
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self.save_load("%s.webp", self.colour)
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def test_analyzeload(self):
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x = Vips.type_find("VipsForeign", "analyzeload")
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if not x.is_instantiatable():
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print("no analyze support in this vips, skipping test")
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return
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def analyze_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqual(a[0], 3335)
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self.assertEqual(im.width, 128)
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self.assertEqual(im.height, 8064)
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self.assertEqual(im.bands, 1)
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self.file_loader("analyzeload", self.analyze_file, analyze_valid)
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def test_matload(self):
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x = Vips.type_find("VipsForeign", "matload")
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if not x.is_instantiatable():
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print("no matlab support in this vips, skipping test")
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return
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def matlab_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqualObjects(a, [38671.0, 33914.0, 26762.0])
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self.assertEqual(im.width, 290)
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self.assertEqual(im.height, 442)
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self.assertEqual(im.bands, 3)
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self.file_loader("matload", self.matlab_file, matlab_valid)
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def test_openexrload(self):
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x = Vips.type_find("VipsForeign", "openexrload")
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if not x.is_instantiatable():
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print("no openexr support in this vips, skipping test")
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return
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def exr_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqualObjects(a, [0.124512, 0.159668,
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0.040375, 1.0],
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places = 5)
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self.assertEqual(im.width, 610)
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self.assertEqual(im.height, 406)
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self.assertEqual(im.bands, 4)
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self.file_loader("openexrload", self.exr_file, exr_valid)
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def test_fitsload(self):
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x = Vips.type_find("VipsForeign", "fitsload")
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if not x.is_instantiatable():
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print("no fits support in this vips, skipping test")
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return
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def fits_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqualObjects(a, [-0.165013, -0.148553, 1.09122,
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-0.942242],
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places = 5)
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self.assertEqual(im.width, 200)
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self.assertEqual(im.height, 200)
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self.assertEqual(im.bands, 4)
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self.file_loader("fitsload", self.fits_file, fits_valid)
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self.save_load("%s.fits", self.mono)
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def test_openslideload(self):
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x = Vips.type_find("VipsForeign", "openslideload")
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if not x.is_instantiatable():
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print("no openslide support in this vips, skipping test")
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return
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def openslide_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqualObjects(a, [244, 250, 243, 255])
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self.assertEqual(im.width, 2220)
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self.assertEqual(im.height, 2967)
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self.assertEqual(im.bands, 4)
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self.file_loader("openslideload", self.openslide_file, openslide_valid)
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def test_pdfload(self):
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x = Vips.type_find("VipsForeign", "pdfload")
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if not x.is_instantiatable():
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print("no pdf support in this vips, skipping test")
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return
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def pdf_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqualObjects(a, [35, 31, 32, 255])
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self.assertEqual(im.width, 1133)
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self.assertEqual(im.height, 680)
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self.assertEqual(im.bands, 4)
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self.file_loader("pdfload", self.pdf_file, pdf_valid)
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self.buffer_loader("pdfload_buffer", self.pdf_file, pdf_valid)
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im = Vips.Image.new_from_file(self.pdf_file)
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x = Vips.Image.new_from_file(self.pdf_file, scale = 2)
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self.assertLess(abs(im.width * 2 - x.width), 2)
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self.assertLess(abs(im.height * 2 - x.height), 2)
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im = Vips.Image.new_from_file(self.pdf_file)
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x = Vips.Image.new_from_file(self.pdf_file, dpi = 144)
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self.assertLess(abs(im.width * 2 - x.width), 2)
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self.assertLess(abs(im.height * 2 - x.height), 2)
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def test_gifload(self):
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x = Vips.type_find("VipsForeign", "gifload")
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if not x.is_instantiatable():
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print("no gif support in this vips, skipping test")
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return
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def gif_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqualObjects(a, [33, 33, 33, 255])
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self.assertEqual(im.width, 159)
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self.assertEqual(im.height, 203)
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self.assertEqual(im.bands, 4)
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self.file_loader("gifload", self.gif_file, gif_valid)
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self.buffer_loader("gifload_buffer", self.gif_file, gif_valid)
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def test_svgload(self):
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x = Vips.type_find("VipsForeign", "svgload")
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if not x.is_instantiatable():
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print("no svg support in this vips, skipping test")
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return
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def svg_valid(self, im):
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a = im(10, 10)
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self.assertAlmostEqualObjects(a, [0, 0, 77, 255])
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self.assertEqual(im.width, 360)
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self.assertEqual(im.height, 588)
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self.assertEqual(im.bands, 4)
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self.file_loader("svgload", self.svg_file, svg_valid)
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self.buffer_loader("svgload_buffer", self.svg_file, svg_valid)
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im = Vips.Image.new_from_file(self.svg_file)
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x = Vips.Image.new_from_file(self.svg_file, scale = 2)
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self.assertLess(abs(im.width * 2 - x.width), 2)
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self.assertLess(abs(im.height * 2 - x.height), 2)
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im = Vips.Image.new_from_file(self.svg_file)
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x = Vips.Image.new_from_file(self.svg_file, dpi = 144)
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self.assertLess(abs(im.width * 2 - x.width), 2)
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self.assertLess(abs(im.height * 2 - x.height), 2)
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def test_csv(self):
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self.save_load("%s.csv", self.mono)
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def test_matrix(self):
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self.save_load("%s.mat", self.mono)
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def test_ppm(self):
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x = Vips.type_find("VipsForeign", "ppmload")
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if not x.is_instantiatable():
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print("no PPM support in this vips, skipping test")
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return
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self.save_load("%s.ppm", self.mono)
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self.save_load("%s.ppm", self.colour)
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def test_rad(self):
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x = Vips.type_find("VipsForeign", "radload")
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if not x.is_instantiatable():
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print("no Radiance support in this vips, skipping test")
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return
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self.save_load("%s.hdr", self.colour)
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def test_dzsave(self):
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x = Vips.type_find("VipsForeign", "dzsave")
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if not x.is_instantiatable():
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print("no dzsave support in this vips, skipping test")
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return
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# dzsave is hard to test, there are so many options
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# test each option separately and hope they all function together
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# correctly
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# default deepzoom layout ... we must use png here, since we want to
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# test the overlap for equality
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self.colour.dzsave("test", suffix = ".png")
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# tes horizontal overlap ... expect 256 step, overlap 1
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x = Vips.Image.new_from_file("test_files/10/0_0.png")
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self.assertEqual(x.width, 255)
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y = Vips.Image.new_from_file("test_files/10/1_0.png")
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self.assertEqual(y.width, 256)
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|
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# the right two columns of x should equal the left two columns of y
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left = x.crop(x.width - 2, 0, 2, x.height)
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right = y.crop(0, 0, 2, y.height)
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self.assertEqual((left - right).abs().max(), 0)
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|
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# test vertical overlap
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self.assertEqual(x.height, 255)
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y = Vips.Image.new_from_file("test_files/10/0_1.png")
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self.assertEqual(y.height, 256)
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|
|
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# the bottom two rows of x should equal the top two rows of y
|
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top = x.crop(0, x.height - 2, x.width, 2)
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bottom = y.crop(0, 0, y.width, 2)
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self.assertEqual((top - bottom).abs().max(), 0)
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|
|
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# there should be a bottom layer
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x = Vips.Image.new_from_file("test_files/0/0_0.png")
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self.assertEqual(x.width, 1)
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self.assertEqual(x.height, 1)
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|
|
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# 10 should be the final layer
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self.assertFalse(os.path.isdir("test_files/11"))
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|
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shutil.rmtree("test_files")
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os.unlink("test.dzi")
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|
|
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# default google layout
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self.colour.dzsave("test", layout = "google")
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|
|
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# test bottom-right tile ... default is 256x256 tiles, overlap 0
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x = Vips.Image.new_from_file("test/2/2/3.jpg")
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self.assertEqual(x.width, 256)
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self.assertEqual(x.height, 256)
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self.assertFalse(os.path.exists("test/2/2/4.jpg"))
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self.assertFalse(os.path.exists("test/3"))
|
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x = Vips.Image.new_from_file("test/blank.png")
|
|
self.assertEqual(x.width, 256)
|
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self.assertEqual(x.height, 256)
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|
|
|
shutil.rmtree("test")
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|
|
|
# default zoomify layout
|
|
self.colour.dzsave("test", layout = "zoomify")
|
|
|
|
# 256x256 tiles, no overlap
|
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self.assertTrue(os.path.exists("test/ImageProperties.xml"))
|
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x = Vips.Image.new_from_file("test/TileGroup0/2-3-2.jpg")
|
|
self.assertEqual(x.width, 256)
|
|
self.assertEqual(x.height, 256)
|
|
|
|
shutil.rmtree("test")
|
|
|
|
# test zip output
|
|
self.colour.dzsave("test.zip")
|
|
self.assertFalse(os.path.exists("test_files"))
|
|
self.assertFalse(os.path.exists("test.dzi"))
|
|
os.unlink("test.zip")
|
|
|
|
# test suffix
|
|
self.colour.dzsave("test", suffix = ".png")
|
|
|
|
x = Vips.Image.new_from_file("test_files/10/0_0.png")
|
|
self.assertEqual(x.width, 255)
|
|
|
|
shutil.rmtree("test_files")
|
|
os.unlink("test.dzi")
|
|
|
|
# test overlap
|
|
self.colour.dzsave("test", overlap = 200)
|
|
|
|
y = Vips.Image.new_from_file("test_files/10/1_1.jpeg")
|
|
self.assertEqual(y.width, 654)
|
|
|
|
shutil.rmtree("test_files")
|
|
os.unlink("test.dzi")
|
|
|
|
# test tile-size
|
|
self.colour.dzsave("test", tile_size = 512)
|
|
|
|
y = Vips.Image.new_from_file("test_files/10/0_0.jpeg")
|
|
self.assertEqual(y.width, 513)
|
|
self.assertEqual(y.height, 513)
|
|
|
|
shutil.rmtree("test_files")
|
|
os.unlink("test.dzi")
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|
|
|