Naïve Image Formats

File Format
Name	Naïve Image Formats
Ontology	Electronic File Formats Graphics Naïve Image Formats
Extension(s)	.nie, .nii, .nia
MIME Type(s)	image/nie, image/nii, image/nia
Released	2018 (draft)

The Naïve Image Formats are a set of simple uncompressed raster image and animation file formats. They are loosely associated with Google's Wuffs programming language. As of 2019-12, the specifications are a work in progress.

The formats are potentially usable as intermediate or "neutral" formats, similar to the Netpbm formats or farbfeld.

There are three formats:

• NIE - Still image
• NII - Animated image, out-of-band frames
• NIA - Animated image, in-band frames

Identification

All formats begin with bytes 6e c3 af. The next byte is:

• 0x45 ('E') for NIE
• 0x49 ('I') for NII
• 0x41 ('A') for NIA

Specifications

• nie-spec.md

Software

• Deark

Sample files

• dexvert samples — image/naiveNIA
• dexvert samples — image/naiveNIE

Links

• Naïve Image Formats (NIE, NII, NIA) Related Work