cci

Cloud Cover Index

CCI is a school project that computes the cloud cover index of any image of the sky using a basic RGB-based cloud segmentation algorithm.

How to use

Build at home

1. Download 1.15 Golang compiler. Instructions here.
2. Build binary with go build -o cci cmd/main.go
3. (optionally) Run and build in the same command go run cmd/main.go

Instructions

Use built binary with the following flags

• -src path to the source image
• -mask path to the mask image
• -s if set, an output file with the segmentation results will be created
• -out path to the output file (will be created for you)

Examples

• Just output cloud cover index:

./cci -src myImage.jpg -mask myMask.png

• Output cloud cover image and segmentation file:

./cci -src myImage.jpg -mask myMask.png -s -out myOutputFile.png

Package structure

• cmd is a command line interface that read input files and parses them into Golang's image pgk abstractions.
• alg is a package that deals with image objects and run segmentation algorithms.

Results

Source Image	Segmentation result	CCI
		0.181054

command: ./cci -src samples/360-1.jpg -mask samples/mask-1350-sq.png -s -out samples/360-1.png

Source Image	Segmentation result	CCI
		0.292510

command: ./cci -src samples/360-2.jpg -mask samples/mask-1350-sq.png -s -out samples/360-2.png

Source Image	Segmentation result	CCI
		0.44803

command: ./cci -src samples/360-3.jpg -mask samples/mask-1350-sq.png -s -out samples/360-3.png

Source Image	Segmentation result	CCI
		0.505722

command: ./cci -src samples/360-4.jpg -mask samples/mask-1350-sq.png -s -out samples/360-4.png

Source Image	Segmentation result	CCI
		0.517248

command: ./cci -src samples/360-5.jpg -mask samples/mask-1350-sq.png -s -out samples/360-5.png

Source Image	Segmentation result	CCI
		0.324765

command: ./cci -src samples/360-6.jpg -mask samples/mask-1350-sq.png -s -out samples/360-6.png

Source Image	Segmentation result	CCI
		0.121358

command: ./cci -src samples/rect-1.jpg -mask samples/mask-1350-sq.png -s -out samples/rect-1-circle-mask.png

Source Image	Segmentation result	CCI
		0.167027

command: ./cci -src samples/rect-1.jpg -mask samples/3264-1831-rect-mask.png -s -out samples/rect-1-rect-full-mask.png

Source Image	Segmentation result	CCI
		0.007702

command: ./cci -src samples/rect-1.jpg -mask samples/3264-1831-happy-mask.png -s -out samples/rect-1-rect-happy-mask.png

Source Image	Segmentation result	CCI
		0.308125

command: ./cci -src samples/small-lots-of-clouds.jpg -mask samples/3264-1831-rect-mask.png -s -out samples/small-lots-of-clouds.png

Contributors

• Pablo Trinidad (@pablotrinidad)
• Diego Jardón (@jardondiego)