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Merge pull request #7135 from n3011/jpg_repr
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commit
a58034b86c
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@ -922,6 +922,19 @@ class TestFileJpeg:
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im.load()
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ImageFile.LOAD_TRUNCATED_IMAGES = False
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def test_repr_jpeg(self):
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im = hopper()
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with Image.open(BytesIO(im._repr_jpeg_())) as repr_jpeg:
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assert repr_jpeg.format == "JPEG"
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assert_image_similar(im, repr_jpeg, 17)
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def test_repr_jpeg_error(self):
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im = hopper("F")
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with pytest.raises(ValueError):
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im._repr_jpeg_()
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@pytest.mark.skipif(not is_win32(), reason="Windows only")
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@skip_unless_feature("jpg")
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@ -160,6 +160,18 @@ TODO
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Other Changes
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=============
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Support display_jpeg() in IPython
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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In addition to ``display()`` and ``display_png``, ``display_jpeg()`` can now
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also be used to display images in IPython::
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from PIL import Image
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from IPython.display import display_jpeg
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im = Image.new("RGB", (100, 100), (255, 0, 0))
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display_jpeg(im)
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Support reading signed 8-bit TIFF images
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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@ -633,19 +633,34 @@ class Image:
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)
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)
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def _repr_png_(self):
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"""iPython display hook support
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def _repr_image(self, image_format):
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"""Helper function for iPython display hook.
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:returns: png version of the image as bytes
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:param image_format: Image format.
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:returns: image as bytes, saved into the given format.
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"""
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b = io.BytesIO()
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try:
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self.save(b, "PNG")
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self.save(b, image_format)
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except Exception as e:
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msg = "Could not save to PNG for display"
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msg = f"Could not save to {image_format} for display"
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raise ValueError(msg) from e
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return b.getvalue()
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def _repr_png_(self):
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"""iPython display hook support for PNG format.
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:returns: PNG version of the image as bytes
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"""
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return self._repr_image("PNG")
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def _repr_jpeg_(self):
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"""iPython display hook support for JPEG format.
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:returns: JPEG version of the image as bytes
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"""
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return self._repr_image("JPEG")
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@property
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def __array_interface__(self):
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# numpy array interface support
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@ -1108,7 +1123,6 @@ class Image:
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Available methods are :data:`Dither.NONE` or :data:`Dither.FLOYDSTEINBERG`
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(default).
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:returns: A new image
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"""
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self.load()
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