Panorama solution for insta360 images (deprecated)

Makefile

.ONESHELL:

test: xmap.pgm ymap.pgm
	ffmpeg -y -i test.jpg -i xmap.pgm -i ymap.pgm -filter_complex remap out.jpg
	exiftool -UsePanoramaViewer=TRUE -ProjectionType="equirectangular" out.jpg
	which SimplePanoramaViewer 2>/dev/null && SimplePanoramaViewer out.jpg

pgm: dualfisheye2equirectangular
	cd $<
	gcc -o projection projection.c -lm
	./projection \
		-x ../xmap.pgm \
		-y ../ymap.pgm \
		-h 3040 \
		-w 6080 \
		-r 3040 \
		-c 6080 \
		-b $${CROP:-160} \
		-m $${MODE:-thetas}

dualfisheye2equirectangular:
	git clone --depth=1 https://github.com/raboof/dualfisheye2equirectangular