Fall sky

The original images were over exposed and the blue sky that I saw did not exist. GIMP’s Auto Levels wouldn’t make the images much better either. ImageMagicks’ Auto Levels script in RGB mode worked out great. However it took at least an hour of conversion job.
autolevel [-c colormode] [-m midrange] infile outfile

Original image
DCIM100GOPRO

Color mode result:

brightness
DCIM100GOPRO

average
DCIM100GOPRO

gray
DCIM100GOPRO

intensity
DCIM100GOPRO

magnitude
DCIM100GOPRO

lightness
DCIM100GOPRO

rgb
DCIM100GOPRO

The final values I applied all 327 images are rgb mode and 0.75 for gamma correction.
DCIM100GOPRO

About janpenguin

Email: janpenguin [at] riseup [dot] net Every content on the blog is made by Free and Open Source Software in GNU/Linux.
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