Rearranging already-rendered ascii characters (the old text-transpose
rotation) ignores non-square character cells and read as visibly
distorted. Instead, crop the raw camera frame to roughly the right
aspect ratio, rotate it (only for PRINTER_A4) with OpenCV, and only
then convert to ascii - so ascii-image-converter picks shading
characters for correctly-oriented pixel data instead of us hacking
around after the fact.
The live curses viewfinder is now a separate, always-upright,
aspect-corrected preview independent of PRINTER_A4; the rotated/resized
version used for printing is computed fresh from the raw frame only at
capture time.
txt2printr.sh gains ALREADY_ROTATED, set automatically by photobooth.py
so it doesn't redundantly apply its own text-rotation on top of the
image-level one. The bash pipeline (webcam2ascii.sh/exec-cycle.sh),
which can't rotate images itself, still falls back to that text
rotation unchanged.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Amir Alexander Abdelbaki
96194f6d77