Digitising CDs (a.k.a. using your phone as an image scanner)

9 JNRowe 2 7/28/2025, 4:47:46 AM hadess.net ↗

Comments (2)

dvh · 17m ago
I recently used ffmpeg to undo perspective from the image you just provide 4 corners coordinates and it produced straightened image:

    ffmpeg -i input.jpg -vf "perspective=x0=784:y0=396:x1=2396:y1=397:x2=684:y2=2479:x3=2610:y3=2467" output.jpg
voidUpdate · 3m ago
Is there anything FFMPEG cant do?