| Extension | .ptif |
| Category | images |
| Description | The PTIF (Portable Tile Image Format) is an image file format designed for storage of large, high-resolution images. It is a derivative of the TIFF (Tagged Image File Format) and is designed to address the limitations of TIFF for the storage of large images. PTIF is based on a tiled structure, which allows for efficient random access to image data and enables efficient access to smaller subsets of the image without requiring the entire image to be loaded into memory. |
| Technical details | The PTIF format supports a range of compression methods, including lossless and lossy compression, which can be applied to individual tiles. This allows for efficient storage of large images while maintaining image quality. The format also supports the use of multiple resolution levels, or pyramids, which enable efficient browsing of large images at different scales.
PTIF is designed to be an open and platform-independent format, which means it can be used with a wide range of software and hardware platforms. It is also designed to be extensible, which means it can be adapted to support new features or compression methods as they become available. |
