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Image MIME Reference
BTIF

Bank Telecommunications Image Format

image/prs.btif
VS

High Efficiency Image File Format Sequence

image/heif-sequence
HEIF-Sequence

A complete technical comparison of Bank Telecommunications Image Format and High Efficiency Image File Format Sequence — covering compression, feature support, browser compatibility, magic bytes, and when to choose each format.

Equal browser support

Feature Support

Feature BTIF HEIF-Sequence
Transparency (Alpha) ✕ No Yes
Animation Support ✕ No Yes
Progressive Loading ✕ No ✕ No
HDR Support ✕ No Yes
EXIF Metadata ✕ No Yes
ICC Color Profile ✕ No Yes
Bank Telecommunications Image Format
image/prs.btif
Extension
.btif.btf
Container Proprietary Check Image Container
Compression Lossy (JPEG-based) / Lossless (TIFF-based)
Algorithm
JPEGTIFF-variant
Color Depth 1-bit (B&W), 8-bit (Grayscale)
Developed by NationsBank (Bank of America) / Ben Simon
Released 1998
Magic Bytes
Unknown (Proprietary container)
Full BTIF reference →
High Efficiency Image File Format Sequence
image/heif-sequence
Extension
.heifs.heif.hif
Container HEIF / ISOBMFF (ISO/IEC 14496-12)
Compression Lossy / Lossless
Algorithm
Codec Agnostic (HEVC, AVC, JPEG, AV1)
Color Depth 8-bit, 10-bit, 12-bit, 16-bit
Developed by Moving Picture Experts Group (MPEG)
Released 2015
Magic Bytes
XX XX XX XX 66 74 79 70 6D 73 66 31
Full HEIF-Sequence reference →

Browser Support Comparison

Browser BTIF HEIF-Sequence
Chrome Chrome
✕ ✕
Firefox Firefox
✕ ✕
Safari Safari
✕ ✕
Edge Edge
✕ ✕
IE IE (Legacy)
✕ ✕
BTIF

BTIF Strengths

  • Allowed early digital archiving and web-based transmission of cleared bank checks
  • Encapsulated both image data and ASCII transaction metadata in a single file
Limitations
  • Completely proprietary and obsolete format
  • Lacks native support in modern operating systems and image viewers
  • Requires legacy plugins or specialized bio-format readers (like ImageC) to decode
HEIF-Sequence

HEIF-Sequence Strengths

  • Codec-agnostic container allows for extreme flexibility when storing multi-frame photographic data
  • Maintains the space-saving benefits of ISOBMFF shared frame data blocks
  • Excellent for archiving computational photography workloads like exposure brackets or focal stacks
Limitations
  • Codec ambiguity means a decoder might be able to parse the container but fail to decode the underlying pixels
  • Zero native web browser support
  • Complex container structure requires specialized parsing libraries to extract individual frames

When to choose which format

BTIF
Use BTIF when…
  • Bank Check Archiving (Legacy)
  • Financial Transaction Records
HEIF-Sequence
Use HEIF-Sequence when…
  • Burst Photography
  • Focal Stacking
  • Exposure Bracketing
  • Time-Lapse Data

More comparisons

BTIF vs ACES → HEIF-Sequence vs ACES → BTIF vs APNG → HEIF-Sequence vs APNG → BTIF vs AVCI → HEIF-Sequence vs AVCI → BTIF vs AVCS → HEIF-Sequence vs AVCS → BTIF vs AVIF → HEIF-Sequence vs AVIF → All comparisons →
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