/cgl/ - Cosplay & EGL

>>10217419
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>>10217903
Camera only has one orientation. When you rotate your device, your screen may rotate with it, but the physical hardware camera is the same rotation. There are two solutions for rotating the image. One is to modify the image so it has the correct orientation. For lossy image containers, every transformation including a rotation brings a loss in quality. The second solution is to keep the image data the same and add an orientation metadata. This keeps the quality intact, but when something strips metadata (for example, uploading to sites sometimes remove metadata to remove location coordinates and such), you lose the orientation metadata and end up with pictures that are sideways or upside down. Most solutions prefer the latter, thus you have sideways and upside down pictures.