I ran into the same issue when working with image processing in Go using libvips. By default, libvips ignores EXIF orientation too, so I had to explicitly read and apply the orientation tag before doing any resize or crop. Otherwise users ended up with upside-down processed images from photos. Glad to see this is getting better in Rust.

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jcupitt 19 hours ago | parent [-]

Hello, libvips author here, the JPEG loader has a flag to do this for you. You can write:

VipsImage *image = vips_image_new_from_file("something.jpg", "autorotate", TRUE, NULL);

and it'll flip it upright for you and remove any EXIF orientation tag. It isn't the default since it has (obviously) a large memory and cpu cost.

For simple resize and crop it's much better to use the exif tag to adjust the resize and crop parameters (the vipsthumbnail command does this).

	▲	vic1102 6 hours ago \| parent [-]
		Thanks so much for the clarification and for the great work on libvips! In my Go project I’m using the Golang library github.com/davidbyttow/govips/v2. Images are loaded via `vips.NewImageFromFile()`, which internally calls `vips_image_new_from_file()`. However, `NewImageFromFile()` doesn't support any flags or options beyond the image path, so for JPEGs I manually call `AutoRotate()` before resizing, which wraps `vips_autorot()` — and that works well. Thanks again!