PBM — Netpbm Test Image (P4)
A 256×256 fruit still-life image as binary Netpbm P4 (1-bit bitmap) — the minimal, header-plus-raw-pixels family used across Unix imaging tools. For testing Netpbm parsers and conversion.
Rendered preview of the pbm file (8 KB). Download above for the original.
Specifications
- Format
- Netpbm P4
- Width
- 256
- Height
- 256
- Mode
- 1
- Depth
- 1-bit bitmap
- Encoding
- binary
What is a .pbm file?
PBM (Portable Bitmap) is the simplest Netpbm format, storing 1-bit black-and-white images as ASCII or packed binary bits after a short text header. It uses no compression and represents each pixel as a single on or off value. It is used for bilevel masks and toolchain intermediates.
How to use this file
Use an example PBM to test bilevel image parsing, bit-packing handling, and pipelines that produce or consume black-and-white masks.
Related files
- apngAPNG — Animated SpinnerA 12-frame animated PNG (APNG) of a rotating arc — a lossless, alpha-capable alternative to animated GIF. Useful for testing APNG support, frame extraction, and GIF↔APNG conversion.
- icoICO — Multi-Resolution App IconA Windows ICO containing four square sizes (16/32/48/64 px) of a simple app glyph — the classic favicon/desktop-icon container. Handy for testing icon extraction and multi-size rendering.
- pgmPGM — Netpbm Test Image (P5)A 256×256 fruit still-life image as binary Netpbm P5 (8-bit greyscale) — the minimal, header-plus-raw-pixels family used across Unix imaging tools. For testing Netpbm parsers and conversion.
- ppmPPM — Netpbm Test Image (P6)A 256×256 fruit still-life image as binary Netpbm P6 (24-bit colour) — the minimal, header-plus-raw-pixels family used across Unix imaging tools. For testing Netpbm parsers and conversion.
- tgaTGA — Truevision Test ImageA 256×256 fruit still-life image saved as uncompressed Truevision TGA — a format common in games and 3D texturing. For testing TGA decoders and conversion to modern formats.
- png16-bit Grayscale PNG (deep colour)A 16-bit (deep-colour) grayscale PNG holding a smooth 0–65535 gradient — for testing high-bit-depth support and spotting banding when a tool truncates to 8-bit.
Generated by generation/images_formats2.py. Free for any use, no attribution required — license.