Thursday, November 28, 2013
Sunday, November 10, 2013
Tip Of The Day (2) : Batch resizing pictures in linux
How to batch resize pictures in Linux (Mint and Ubuntu based distros)
Don't forget to read the other tips:
Tip Of The Day (5) : Batch Script to resize pictures in linux (Nemo)
first install imagemagick :
sudo apt-get install imagemagick
then open in terminal the folder containing your pictures you want to resize, and then type the following :
for file in *.[picture extension]; do convert $file -resize [size you want] [new-name]-$file; done
example, for .JPG files that you want to resize in 800*600 (the file will be sized to fit in a 800*600 frame without destroying ratio)
for file in *.JPG; do convert $file -resize 800x600 resized-$file; done
Your resized pictures are now called resized-*.JPG (original pics are not overwritten) ie :
DSCF2248.JPG is now called resized-DSCF2248.JPG
Now you have forum-ready pics, for fast upload and quick sharing ;)
That's all folks !
Sunday, November 3, 2013
CCFL : some experiments
A while ago i took apart some screens with CCFL backlight, and then did nothing with it.
It's time to change that !
What is used :
here is the result :
It's time to change that !
What is used :
- Old PSU
- CCFL inverter bought in a electronic shop
- Some CCFL took from screens
- some electric wire
- soldering iron
- soldering tin
the CCFL tube is longer than the Inverter can handle, that's why i played with it,with a smaller one i got a geeky desk light.
here is the lighting circuit :
here is the result :
And in the dark now :
Ok, This was pointless ... but that was fun to play with
Libellés / bookmarks :
Electronics/DIY,
else
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