Posted 12 July 2015 - 02:25
hi is someone here who knew to convert a jpg 1920x1080 image to png 1280x720 image, with compression?
I already tried it with libav package and use this code:
avconv -i /tmp/img.jpg -vf scale=1280:720 /tmp/img.png
but the png file is about 2mb, with pngquant about 500kb, but this take really long time to compress
Posted 12 July 2015 - 10:14
Try to add -qscale, -q or -q:v (depending on the version of avconv). 0 is highest quality higher values are lower quality.
* Wavefrontier T90 with 28E/23E/19E/13E via SCR switches 2 x 2 x 6 user bands
I don't read PM -> if you have something to ask or to report, do it in the forum so others can benefit. I don't take freelance jobs.
Ik lees geen PM -> als je iets te vragen of te melden hebt, doe het op het forum, zodat anderen er ook wat aan hebben.
Posted 12 July 2015 - 11:38
In enigma2 - python-image can also do this.
On pc - gimp is easy to use.
Posted 12 July 2015 - 11:45
If you have access to a windows pc/laptop try http://www.filehippo...load_paint.net/ 
Open Vision sources: https://github.com/OpenVisionE2
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