Type-in from the July 1990 issue of Amstrad Action.
The program is Listed in the video.
From AA (courtesy of CPCPOWER):
"Eyes down for excellent results with this handy image compressor and decompressor. Run the program, insert your own piccies and follow the menu to choose your options. It will take about four minutes if you want to compress, and two for decompressing, so be patient, it works."
https://dai.ly/x8mgi79
Best viewed on a large screen at 720p (Dailymotion player setting)
Not emulated - original hardware and software.
Please note that the aspect ratio for this video is 16:9 but the CPC monitor has
an aspect ratio of 4:3 so you may wish to adjust your viewing device accordingly.