免费在线将文件转换为TIFF64。
我们注重转换质量、使用便捷性和多格式支持。
| 数据类型 | Image |
| MIME 类型 | image/tiff |
| 开发者 | Aldus/Adobe (TIFF); BigTIFF extension designed within the LibTIFF community (based on an Adobe proposal) |
| 主要使用场景 | 超大栅格:全视野切片显微图、超大地理栅格(GeoTIFF)、超高分辨率扫描/档案母版、科学数据 |
TIFF64(BigTIFF)是使用 64 位偏移量的 TIFF 变体,用于突破经典 TIFF 约 4GB 的限制,同时保留基于标签的 TIFF 结构。
| 数据类型 | Image |
| MIME 类型 | image/tiff |
| 压缩 | Optional; same concept as TIFF (compression is defined by tags, varies by file/profile) |
| 色深 | Wide range via tags (BitsPerSample/SampleFormat): from 1-bit bilevel to 8/16-bit integer per channel; 32-bit integer/float and higher are also used in scientific workflows |
| 色彩空间 | Flexible via tags: grayscale, RGB/RGBA, CMYK, YCbCr, Lab, and others depending on PhotometricInterpretation and related tags |
| 透明度支持 | 是 |
| 动画支持 | 否 |
| EXIF 元数据支持 | 是 |
| 元数据 | 与 TIFF 相同的标签式元数据模型(常含 Exif 风格标签)以及 GeoTIFF 等扩展(依工具而定)。BigTIFF 主要改变 offset/count 的位宽。 |
| 结构类型 | Header + one or more IFDs (pages) + image data (strips/tiles) + tag value data; uses 64-bit offsets/counts where applicable |
| 标准 / 规范 | TIFF 6.0 (1992) + BigTIFF design/specification (LibTIFF / BigTIFF documentation) |
| 典型文件大小 | Often multi-gigabyte for large scans/rasters; size depends on resolution, bit depth, number of pages, and compression |
| 推出年份 | 2004 |
TIFF64 文件格式具有多项优势,适用于常见的使用场景。
TIFF64 文件格式存在一些限制,可能会在特定使用场景中产生影响。
TIFF64 图像在大多数设备和平台上都受到广泛支持。
Treat as untrusted input: malformed tags/offsets or crafted compressed data can exploit decoder bugs. Validate dimensions, strip/tile byte counts, and avoid unbounded allocations during parsing/decompression
Openly published specification; widely implemented in common imaging libraries (e.g., LibTIFF) and domain tools