Python PIL.Image.core() Examples
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code examples of PIL.Image.core().
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Example #1
Source File: Image.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 6 votes |
def blend(im1, im2, alpha): """ Creates a new image by interpolating between two input images, using a constant alpha.:: out = image1 * (1.0 - alpha) + image2 * alpha :param im1: The first image. :param im2: The second image. Must have the same mode and size as the first image. :param alpha: The interpolation alpha factor. If alpha is 0.0, a copy of the first image is returned. If alpha is 1.0, a copy of the second image is returned. There are no restrictions on the alpha value. If necessary, the result is clipped to fit into the allowed output range. :returns: An :py:class:`~PIL.Image.Image` object. """ im1.load() im2.load() return im1._new(core.blend(im1.im, im2.im, alpha))
Example #2
Source File: Image.py From teleport with Apache License 2.0 | 6 votes |
def _getdecoder(mode, decoder_name, args, extra=()): # tweak arguments if args is None: args = () elif not isinstance(args, tuple): args = (args,) try: decoder = DECODERS[decoder_name] except KeyError: pass else: return decoder(mode, *args + extra) try: # get decoder decoder = getattr(core, decoder_name + "_decoder") except AttributeError: raise OSError("decoder %s not available" % decoder_name) return decoder(mode, *args + extra)
Example #3
Source File: Image.py From teleport with Apache License 2.0 | 6 votes |
def blend(im1, im2, alpha): """ Creates a new image by interpolating between two input images, using a constant alpha.:: out = image1 * (1.0 - alpha) + image2 * alpha :param im1: The first image. :param im2: The second image. Must have the same mode and size as the first image. :param alpha: The interpolation alpha factor. If alpha is 0.0, a copy of the first image is returned. If alpha is 1.0, a copy of the second image is returned. There are no restrictions on the alpha value. If necessary, the result is clipped to fit into the allowed output range. :returns: An :py:class:`~PIL.Image.Image` object. """ im1.load() im2.load() return im1._new(core.blend(im1.im, im2.im, alpha))
Example #4
Source File: Image.py From FODI with GNU General Public License v3.0 | 6 votes |
def blend(im1, im2, alpha): """ Creates a new image by interpolating between two input images, using a constant alpha.:: out = image1 * (1.0 - alpha) + image2 * alpha :param im1: The first image. :param im2: The second image. Must have the same mode and size as the first image. :param alpha: The interpolation alpha factor. If alpha is 0.0, a copy of the first image is returned. If alpha is 1.0, a copy of the second image is returned. There are no restrictions on the alpha value. If necessary, the result is clipped to fit into the allowed output range. :returns: An :py:class:`~PIL.Image.Image` object. """ im1.load() im2.load() return im1._new(core.blend(im1.im, im2.im, alpha))
Example #5
Source File: Image.py From teleport with Apache License 2.0 | 6 votes |
def _crop(self, im, box): """ Returns a rectangular region from the core image object im. This is equivalent to calling im.crop((x0, y0, x1, y1)), but includes additional sanity checks. :param im: a core image object :param box: The crop rectangle, as a (left, upper, right, lower)-tuple. :returns: A core image object. """ x0, y0, x1, y1 = map(int, map(round, box)) absolute_values = (abs(x1 - x0), abs(y1 - y0)) _decompression_bomb_check(absolute_values) return im.crop((x0, y0, x1, y1))
Example #6
Source File: Image.py From FODI with GNU General Public License v3.0 | 6 votes |
def _crop(self, im, box): """ Returns a rectangular region from the core image object im. This is equivalent to calling im.crop((x0, y0, x1, y1)), but includes additional sanity checks. :param im: a core image object :param box: The crop rectangle, as a (left, upper, right, lower)-tuple. :returns: A core image object. """ x0, y0, x1, y1 = map(int, map(round, box)) absolute_values = (abs(x1 - x0), abs(y1 - y0)) _decompression_bomb_check(absolute_values) return im.crop((x0, y0, x1, y1))
Example #7
Source File: Image.py From teleport with Apache License 2.0 | 6 votes |
def _getencoder(mode, encoder_name, args, extra=()): # tweak arguments if args is None: args = () elif not isinstance(args, tuple): args = (args,) try: encoder = ENCODERS[encoder_name] except KeyError: pass else: return encoder(mode, *args + extra) try: # get encoder encoder = getattr(core, encoder_name + "_encoder") except AttributeError: raise OSError("encoder %s not available" % encoder_name) return encoder(mode, *args + extra) # -------------------------------------------------------------------- # Simple expression analyzer
Example #8
Source File: Image.py From FODI with GNU General Public License v3.0 | 6 votes |
def _getencoder(mode, encoder_name, args, extra=()): # tweak arguments if args is None: args = () elif not isinstance(args, tuple): args = (args,) try: encoder = ENCODERS[encoder_name] except KeyError: pass else: return encoder(mode, *args + extra) try: # get encoder encoder = getattr(core, encoder_name + "_encoder") except AttributeError: raise OSError("encoder %s not available" % encoder_name) return encoder(mode, *args + extra) # -------------------------------------------------------------------- # Simple expression analyzer
Example #9
Source File: Image.py From teleport with Apache License 2.0 | 6 votes |
def _crop(self, im, box): """ Returns a rectangular region from the core image object im. This is equivalent to calling im.crop((x0, y0, x1, y1)), but includes additional sanity checks. :param im: a core image object :param box: The crop rectangle, as a (left, upper, right, lower)-tuple. :returns: A core image object. """ x0, y0, x1, y1 = map(int, map(round, box)) absolute_values = (abs(x1 - x0), abs(y1 - y0)) _decompression_bomb_check(absolute_values) return im.crop((x0, y0, x1, y1))
Example #10
Source File: Image.py From FODI with GNU General Public License v3.0 | 6 votes |
def _getdecoder(mode, decoder_name, args, extra=()): # tweak arguments if args is None: args = () elif not isinstance(args, tuple): args = (args,) try: decoder = DECODERS[decoder_name] except KeyError: pass else: return decoder(mode, *args + extra) try: # get decoder decoder = getattr(core, decoder_name + "_decoder") except AttributeError: raise OSError("decoder %s not available" % decoder_name) return decoder(mode, *args + extra)
Example #11
Source File: test_file_png.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_leak_load(self): with open('Tests/images/hopper.png', 'rb') as f: DATA = BytesIO(f.read(16 * 1024)) ImageFile.LOAD_TRUNCATED_IMAGES = True with Image.open(DATA) as im: im.load() def core(): with Image.open(DATA) as im: im.load() try: self._test_leak(core) finally: ImageFile.LOAD_TRUNCATED_IMAGES = False
Example #12
Source File: test_image_split.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_split_open(self): codecs = dir(Image.core) if 'zip_encoder' in codecs: test_file = self.tempfile("temp.png") else: test_file = self.tempfile("temp.pcx") def split_open(mode): hopper(mode).save(test_file) im = Image.open(test_file) return len(im.split()) self.assertEqual(split_open("1"), 1) self.assertEqual(split_open("L"), 1) self.assertEqual(split_open("P"), 1) self.assertEqual(split_open("RGB"), 3) if 'zip_encoder' in codecs: self.assertEqual(split_open("RGBA"), 4)
Example #13
Source File: test_file_libtiff.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_gimp_tiff(self): # Read TIFF JPEG images from GIMP [@PIL168] codecs = dir(Image.core) if "jpeg_decoder" not in codecs: self.skipTest("jpeg support not available") filename = "Tests/images/pil168.tif" im = Image.open(filename) self.assertEqual(im.mode, "RGB") self.assertEqual(im.size, (256, 256)) self.assertEqual( im.tile, [('jpeg', (0, 0, 256, 256), 0, ('RGB', 'jpeg', False))] ) im.load() self.assert_image_equal_tofile(im, "Tests/images/pil168.png")
Example #14
Source File: Image.py From teleport with Apache License 2.0 | 6 votes |
def _getencoder(mode, encoder_name, args, extra=()): # tweak arguments if args is None: args = () elif not isinstance(args, tuple): args = (args,) try: encoder = ENCODERS[encoder_name] except KeyError: pass else: return encoder(mode, *args + extra) try: # get encoder encoder = getattr(core, encoder_name + "_encoder") except AttributeError: raise OSError("encoder %s not available" % encoder_name) return encoder(mode, *args + extra) # -------------------------------------------------------------------- # Simple expression analyzer
Example #15
Source File: test_file_eps.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_render_scale1(self): # We need png support for these render test codecs = dir(Image.core) if "zip_encoder" not in codecs or "zip_decoder" not in codecs: self.skipTest("zip/deflate support not available") # Zero bounding box image1_scale1 = Image.open(file1) image1_scale1.load() image1_scale1_compare = Image.open(file1_compare).convert("RGB") image1_scale1_compare.load() self.assert_image_similar(image1_scale1, image1_scale1_compare, 5) # Non-Zero bounding box image2_scale1 = Image.open(file2) image2_scale1.load() image2_scale1_compare = Image.open(file2_compare).convert("RGB") image2_scale1_compare.load() self.assert_image_similar(image2_scale1, image2_scale1_compare, 10)
Example #16
Source File: Image.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 6 votes |
def _crop(self, im, box): """ Returns a rectangular region from the core image object im. This is equivalent to calling im.crop((x0, y0, x1, y1)), but includes additional sanity checks. :param im: a core image object :param box: The crop rectangle, as a (left, upper, right, lower)-tuple. :returns: A core image object. """ x0, y0, x1, y1 = map(int, map(round, box)) absolute_values = (abs(x1 - x0), abs(y1 - y0)) _decompression_bomb_check(absolute_values) return im.crop((x0, y0, x1, y1))
Example #17
Source File: test_file_eps.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_render_scale2(self): # We need png support for these render test codecs = dir(Image.core) if "zip_encoder" not in codecs or "zip_decoder" not in codecs: self.skipTest("zip/deflate support not available") # Zero bounding box image1_scale2 = Image.open(file1) image1_scale2.load(scale=2) image1_scale2_compare = Image.open(file1_compare_scale2).convert("RGB") image1_scale2_compare.load() self.assert_image_similar(image1_scale2, image1_scale2_compare, 5) # Non-Zero bounding box image2_scale2 = Image.open(file2) image2_scale2.load(scale=2) image2_scale2_compare = Image.open(file2_compare_scale2).convert("RGB") image2_scale2_compare.load() self.assert_image_similar(image2_scale2, image2_scale2_compare, 10)
Example #18
Source File: Image.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 6 votes |
def _getencoder(mode, encoder_name, args, extra=()): # tweak arguments if args is None: args = () elif not isinstance(args, tuple): args = (args,) try: encoder = ENCODERS[encoder_name] return encoder(mode, *args + extra) except KeyError: pass try: # get encoder encoder = getattr(core, encoder_name + "_encoder") return encoder(mode, *args + extra) except AttributeError: raise IOError("encoder %s not available" % encoder_name) # -------------------------------------------------------------------- # Simple expression analyzer
Example #19
Source File: Image.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 6 votes |
def _getdecoder(mode, decoder_name, args, extra=()): # tweak arguments if args is None: args = () elif not isinstance(args, tuple): args = (args,) try: decoder = DECODERS[decoder_name] return decoder(mode, *args + extra) except KeyError: pass try: # get decoder decoder = getattr(core, decoder_name + "_decoder") return decoder(mode, *args + extra) except AttributeError: raise IOError("decoder %s not available" % decoder_name)
Example #20
Source File: inference.py From sagemaker-tensorflow-serving-container with Apache License 2.0 | 6 votes |
def handler(data, context): """Handle request. Args: data (obj): the request data context (Context): an object containing request and configuration details Returns: (bytes, string): data to return to client, (optional) response content type """ # use the imported library print('pillow: {}\n{}'.format(PIL.__version__, dir(_imaging))) processed_input = _process_input(data, context) response = requests.post(context.rest_uri, data=processed_input) return _process_output(response, context)
Example #21
Source File: test_tiff_ifdrational.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_ifd_rational_save(self): methods = (True, False) if 'libtiff_encoder' not in dir(Image.core): methods = (False,) for libtiff in methods: TiffImagePlugin.WRITE_LIBTIFF = libtiff im = hopper() out = self.tempfile('temp.tiff') res = IFDRational(301, 1) im.save(out, dpi=(res, res), compression='raw') reloaded = Image.open(out) self.assertEqual(float(IFDRational(301, 1)), float(reloaded.tag_v2[282]))
Example #22
Source File: test_file_wmf.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 6 votes |
def test_load_raw(self): # Test basic EMF open and rendering im = Image.open('Tests/images/drawing.emf') if hasattr(Image.core, "drawwmf"): # Currently, support for WMF/EMF is Windows-only im.load() # Compare to reference rendering imref = Image.open('Tests/images/drawing_emf_ref.png') imref.load() self.assert_image_similar(im, imref, 0) # Test basic WMF open and rendering im = Image.open('Tests/images/drawing.wmf') if hasattr(Image.core, "drawwmf"): # Currently, support for WMF/EMF is Windows-only im.load() # Compare to reference rendering imref = Image.open('Tests/images/drawing_wmf_ref.png') imref.load() self.assert_image_similar(im, imref, 2.0)
Example #23
Source File: Image.py From teleport with Apache License 2.0 | 6 votes |
def blend(im1, im2, alpha): """ Creates a new image by interpolating between two input images, using a constant alpha.:: out = image1 * (1.0 - alpha) + image2 * alpha :param im1: The first image. :param im2: The second image. Must have the same mode and size as the first image. :param alpha: The interpolation alpha factor. If alpha is 0.0, a copy of the first image is returned. If alpha is 1.0, a copy of the second image is returned. There are no restrictions on the alpha value. If necessary, the result is clipped to fit into the allowed output range. :returns: An :py:class:`~PIL.Image.Image` object. """ im1.load() im2.load() return im1._new(core.blend(im1.im, im2.im, alpha))
Example #24
Source File: Image.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 5 votes |
def effect_noise(size, sigma): """ Generate Gaussian noise centered around 128. :param size: The requested size in pixels, as a 2-tuple: (width, height). :param sigma: Standard deviation of noise. """ return Image()._new(core.effect_noise(size, sigma))
Example #25
Source File: test_file_jpeg.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_sanity(self): # internal version number self.assertRegex(Image.core.jpeglib_version, r"\d+\.\d+$") im = Image.open(TEST_FILE) im.load() self.assertEqual(im.mode, "RGB") self.assertEqual(im.size, (128, 128)) self.assertEqual(im.format, "JPEG") self.assertEqual(im.get_format_mimetype(), "image/jpeg")
Example #26
Source File: Image.py From FODI with GNU General Public License v3.0 | 5 votes |
def radial_gradient(mode): """ Generate 256x256 radial gradient from black to white, centre to edge. :param mode: Input mode. """ return Image()._new(core.radial_gradient(mode)) # -------------------------------------------------------------------- # Resources
Example #27
Source File: Image.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 5 votes |
def linear_gradient(mode): """ Generate 256x256 linear gradient from black to white, top to bottom. :param mode: Input mode. """ return Image()._new(core.linear_gradient(mode))
Example #28
Source File: Image.py From FODI with GNU General Public License v3.0 | 5 votes |
def close(self): """ Closes the file pointer, if possible. This operation will destroy the image core and release its memory. The image data will be unusable afterward. This function is only required to close images that have not had their file read and closed by the :py:meth:`~PIL.Image.Image.load` method. See :ref:`file-handling` for more information. """ try: if hasattr(self, "_close__fp"): self._close__fp() self.fp.close() self.fp = None except Exception as msg: logger.debug("Error closing: %s", msg) if getattr(self, "map", None): self.map = None # Instead of simply setting to None, we're setting up a # deferred error that will better explain that the core image # object is gone. self.im = deferred_error(ValueError("Operation on closed image"))
Example #29
Source File: Image.py From FODI with GNU General Public License v3.0 | 5 votes |
def _apply_env_variables(env=None): if env is None: env = os.environ for var_name, setter in [ ("PILLOW_ALIGNMENT", core.set_alignment), ("PILLOW_BLOCK_SIZE", core.set_block_size), ("PILLOW_BLOCKS_MAX", core.set_blocks_max), ]: if var_name not in env: continue var = env[var_name].lower() units = 1 for postfix, mul in [("k", 1024), ("m", 1024 * 1024)]: if var.endswith(postfix): units = mul var = var[: -len(postfix)] try: var = int(var) * units except ValueError: warnings.warn("{} is not int".format(var_name)) continue try: setter(var) except ValueError as e: warnings.warn("{}: {}".format(var_name, e))
Example #30
Source File: Image.py From python3_ios with BSD 3-Clause "New" or "Revised" License | 5 votes |
def _apply_env_variables(env=None): if env is None: env = os.environ for var_name, setter in [ ('PILLOW_ALIGNMENT', core.set_alignment), ('PILLOW_BLOCK_SIZE', core.set_block_size), ('PILLOW_BLOCKS_MAX', core.set_blocks_max), ]: if var_name not in env: continue var = env[var_name].lower() units = 1 for postfix, mul in [('k', 1024), ('m', 1024*1024)]: if var.endswith(postfix): units = mul var = var[:-len(postfix)] try: var = int(var) * units except ValueError: warnings.warn("{0} is not int".format(var_name)) continue try: setter(var) except ValueError as e: warnings.warn("{0}: {1}".format(var_name, e))