Convert PEF to VIPS

The PEF (Pentax Electronic File) is a raw image file format used by Pentax digital cameras. It contains unprocessed data directly from the camera's image sensor, allowing for greater post-processing flexibility and higher-quality images. Introduced by Pentax, this format retains more image information compared to compressed formats like JPEG, making it popular among professional photographers. PEF files can be opened and edited with various software, including Adobe Photoshop and Pentax's own Digital Camera Utility.

The VIPS (Virtual Image Processing System) file format, developed by the libvips library, is designed for high-performance image processing with low memory usage. It supports arbitrary metadata and is optimized for command-line operations. Although not widely supported by other programs, it serves as an efficient intermediate format for tasks like image inversion and gamma correction. The format includes a 64-byte header with basic fields such as image width and a set of band-interleaved scanlines for the image data.