some resized images are in the wrong orientation about imagesharp HOT 4 CLOSED

You could call .AutoOrient on the image before you resize it. This will rotate the image to the "correct" orientation.

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@dj-nitehawk I can confirm, based on your test image, that .AutoOrient() is all you need to do to fix your issue.

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@dlemstra @tocsoft Thanks.. That answer does the trick but...

@dj-nitehawk It's best to also explain why ImageSharp is actually doing the right thing without AutoRotate

ImageSharp is actually correctly resizing those images.

Jpeg files have specific values in something called the Start of Frame marker which defines the width and height of the image. ImageSharp, like any other library (e.g System.Drawing) will read those values to determine the correct dimensions and layout of the byte array to store that image data.

The EXIF metadata contained within the image is additional, unrelated data that is sometimes used to determine how the image is displayed (i.e. rotation).

This data does not determine how the width and height of an image is calculated. Software like Photoshop might (I haven't tested) present the image in a rotated fashion with the dimensions swapped to make it less confusing for the end user but a graphics library will not.

I hope that makes sense

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thanks guys!

.AutoOrient() does the job perfectly...

appreciate the super-fast support :-)

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