yvonne (viewer for Atari 8-bit image formats)

Yvonne is an Atari picture viewer. For interlaced or split images,
Yvonne emulates the result by mixing colours and displaying bigger
pixels. You can save the pictures in PC formats such as: BMP, JPG,
PNG, and XPM.

Supported Atari formats: AP3, APC, APV, AP3, BG9, CIN, G09, GR8, GR9,
HPM, INP (partially), INT, MIC, PLM.