Panorama solution2 for insta360 images (deprecated)

.gitignore

*.insp
*.jpg

Makefile

.ONESHELL:

FOV ?= 205 
OUTPUT ?= e

WIDTH ?= 2900

B1 ?= 1519
B2 ?= 4559
W ?= 70

batch:
	ffmpeg -y -hide_banner \
		-f image2 \
		-pattern_type glob \
		-i input/'*.insp' \
		-vf "v360=input=dfisheye:$(OUTPUT):ih_fov=$(FOV):iv_fov=$(FOV):yaw=0:pitch=0:roll=90,geq=cb_expr='cb(X,Y)':cr_expr='cr(X,Y)':lum_expr='clip(lum(X,Y)+between(X,$(B1)-$(W),$(B1))*lerp(0,lum($(B1)+1,Y)-lum($(B1),Y),(X-$(B1)+$(W))/$(W))+between(X,$(B2)-$(W),$(B2))*lerp(0,lum($(B2)+1,Y)-lum($(B2),Y),(X-$(B2)+$(W))/$(W)),0,255)'" \
		-threads 8 \
		output/'%03d.jpg'

test:
	ffmpeg -y -i cropped.jpg -vf v360=dfisheye:equirect:ih_fov=$(FOV):iv_fov=$(FOV):yaw=0 output.jpg
	exiftool -UsePanoramaViewer=TRUE -ProjectionType="equirectangular" output.jpg
	which SimplePanoramaViewer 2>/dev/null && SimplePanoramaViewer output.jpg

crop:
	crop=$$(( (3040 - $(WIDTH)) / 2 ))
	convert test.jpg -crop $(WIDTH)x$(WIDTH)+$${crop}+$${crop} -rotate 90  part1.jpg
	convert test.jpg -crop $(WIDTH)x$(WIDTH)+$$(( 3040 + $$crop ))+$${crop} -rotate 270 part2.jpg
	convert +append part{1,2}.jpg cropped.jpg

half:
	ffmpeg -y -i part1.jpg -vf v360=fisheye:equirect:ih_fov=$(FOV):iv_fov=$(FOV):yaw=0 output1.jpg
	ffmpeg -y -i part2.jpg -vf v360=fisheye:equirect:ih_fov=$(FOV):iv_fov=$(FOV):yaw=0 output2.jpg

TODO.md

• Correction for insta360
  • lensfun
  • https://ffmpeg.org/ffmpeg-filters.html
  • https://trac.ffmpeg.org/ticket/8459