JPEG Image Orientation and Exif

Example images using each of the EXIF orientation flags (0-to-8), in both landscape and portrait orientations. See here for more information. Generating your ...

2020年8月26日 — Investigating how JPEG, WebP, PNG and AVIF store Exif metadata and do web browsers support Exif orientation in all these formats.

The Exif specification defines an Orientation Tag to indicate the orientation of the camera relative to the captured scene. This can be used by the camera ...

2023年5月8日 — Exif (exchangeable image file format) data contains information about the image's parameters (for example, shutter speed, date, time, ...

2019年9月3日 — As you say, there is orientation data in Exif. It defines how the raw pixel data should be transformed before being displayed (rotation, ...

2019年7月31日 — When you are holding the camera with non-upright position, the raw photo you take is stored as a rotated image. The digital device (be a ...

The EXIF orientation tag. JPEG is a standard for compressing and encoding images. However, a .jpg file generally contains information in addition to the image.

EXIF orientation solves this. Auto-rotation. EXIF data is useful information about a JPEG image, hidden inside the file. When images are photographed ...

2008年9月14日 — ... JPEG / Exif Orientation and Rotation。 利用exif_read_data() 讀取EXIF 中Orientation 的資料。 因為GD 沒有鏡像翻轉的函數，所以我改用Imagick 的 ...

2019年1月4日 — ... Exif 信息是镶嵌在JPEG/TIFF 图像文件格式内的一组拍摄参数，需要注意的是EXIF 信息是不支持png,webp 等图片格式的。 对于七牛，可以在图片后面加 ...