Rendered JPEG appears rotated. about imaging HOT 5 CLOSED

Since imaging v1.5.0 there's an AutoOrientation decode option that transforms the image depending on the EXIF orientation flag (if present), e.g.:

img, err := imaging.Open("test.jpg", imaging.AutoOrientation(true))

from imaging.

Hello,

Your example images both appear landscape-mode to me, but you're right about the exif info. Go's image package does not support exif info loading/saving. The image/jpeg package doesn't take the exif info into consideration when loading images.

You can try using some other package to read/write the exif data separately or just to read the orientation exif tag from jpeg and fix the image orientation after loading using imaging flip and rotate functions.

See also: #30

from imaging.

OK, I will check that. Are you thinking about providing that functionality as well? If you click the images, you see what I mean (apparently GitHub doesn't support resized EXIF'd pictures as well! Maybe they're using your lib? ;) )

from imaging.

I don't want to change the behavior of the imaging.Open function as a simple wrapper around image.Decode.

But this functionality can be implemented in a separate function. I didn't think about it yet. Probably I will look into it later. Also I would like not to introduce another external dependency.

from imaging.

Fixed this with instruction from #30

from imaging.