TI picture file

Revision as of 16:47, 10 January 2021

TI picture file is a family of bi-level raster image formats used with Texas Instruments calculators. A picture file is a kind of TI variable file that contains a variable of type "picture".

There is a version of the format for each model of TI calculator. About three or four of the versions are meaningfully different.

Identification

All TI files begin with an 8 byte ASCII signature that starts with "**TI" and indicates the version or model, for example "**TI92**" or "**TI83F*".

Picture files use a filename extension that ends with the letter "i".

There are also "group" files, whose extension ends with "g". A group file contains multiple variables, one or more of which may be images.

Specifications

• TI Link Protocol Guide (download) - See [TI* → File Formats] and [TI* → Variable Formats → Pictures]

Software

• gp_tipic.tar.gz - GIMP plugin (requires libtifiles from tilibs)
• Konvertor
• XnView (Supports some .92i files, at least)
• Deark
• Tom's Viewer
• Rest7 Online Image Converter
• abydos

Sample files

• ticalc.org archives → [model] → basic → media → images
  • Or sometimes [model] → basic → graphics
• https://telparia.com/fileFormatSamples/image/tiCalc/