EXIF Orientation tag doesn't yet support mirroring

sylikc / jpegview

Fork of JPEGView by David Kleiner - fast and highly configurable viewer/editor for JPEG, BMP, PNG, WEBP, TGA, GIF and TIFF images with a minimal GUI. Basic on-the-fly image processing is provided - allowing adjusting typical parameters as sharpness, color balance, rotation, perspective, contrast and local under-/overexposure.

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EXIF Orientation tag doesn't yet support mirroring #314

Open sylikc opened 5 months ago

sylikc commented 5 months ago

This is just an FYI issue, right now JPEGView only supports standard pixel rotations

0x0112 - Orientation - IFD0

~1 = Horizontal (normal)~
2 = Mirror horizontal
~3 = Rotate 180~
4 = Mirror vertical
5 = Mirror horizontal and rotate 270 CW
~6 = Rotate 90 CW~
7 = Mirror horizontal and rotate 90 CW
~8 = Rotate 270 CW~

crossed out are supported right now

Details referred to PR https://github.com/sylikc/jpegview/pull/304#issue-2309455462