Added EXIF support for PNG#3674
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hugovk merged 2 commits intopython-pillow:masterfrom Mar 11, 2019
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Please can you also add release notes?
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Okay, done. Also, in docs/handbook/image-file-formats.rst I've added a version string and adjusted the wording of my new paragraph. |
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Thanks! |
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Resolves #3644
The new image for the test suite is taken from #3557. PNG's
_openmethod only reads up until the first IDAT chunk. In that image, the eXIf chunk appears after that, meaning that the EXIF data will not be read until theloadmethod is called.Rather than loading the whole image in
_open, I suggest that_getexifloads the image if the EXIF chunk is not yet present. The downside of this is thatim.info["exif"]is unreliable if the image has not been loaded, but as this is a new feature, that unreliability is not a step backwards at least.