[英]Why the view of some photos read by cv2.imread and plt.imread are different?
I have some photos taken by UAV, and I find that the view of some photos read by cv2.imread and plt.imread are different, one of them is upside down (180° rotation), but most photos are the same.我有一些无人机拍摄的照片,我发现 cv2.imread 和 plt.imread 读取的一些照片的视图不同,其中一张是颠倒的(180°旋转),但大多数照片是相同的。
Why?为什么?
Unlike matplotlib (PIL), opencv takes EXIF information into account by default, see documentation :与 matplotlib (PIL) 不同,opencv 默认考虑 EXIF 信息,请参阅文档:
If EXIF information is embedded in the image file, the EXIF orientation will be taken into account and thus the image will be rotated accordingly except if the flags IMREAD_IGNORE_ORIENTATION or IMREAD_UNCHANGED are passed.
如果图像文件中嵌入了 EXIF 信息,则将考虑 EXIF 方向,因此图像将相应地旋转,除非传递了标志 IMREAD_IGNORE_ORIENTATION 或 IMREAD_UNCHANGED。
(to achieve the same with PIL, use exif_transpose ) (要使用 PIL 实现相同的功能,请使用exif_transpose )
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