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image_magick_recipes [2012/06/11 16:42] (current)
tkbletsc created
Line 1: Line 1:
 +Rotating hue animation:
 +<​code=bash>​
 +STEP=20
 +DELAY=15
 +echo Hue-shifting images in parallel...
 +for R in `seq -w 0 $STEP 200` ; do
 +  (convert $1 -modulate 100,100,$R TEMP_$R.png ; echo Shift $R done) &
 +done
 +echo Waiting for jobs to finish...
 +wait
 +echo Jobs done, rendering animation...
 +convert -delay $DELAY -loop 0 TEMP_*.png $2
 +rm TEMP_*.png
 +</​code>​
  
 +"​Yospize":​ Bright green edges on dark green fill
 +  convert in.gif -despeckle -edge 2 -channel G -function Polynomial 1,0   ​-channel RB -function Polynomial 0 fg.gif
 +  convert in.gif -colorspace gray   ​-channel G -function Polynomial 0.2,0 -channel RB -function Polynomial 0 bg.gif
 +  convert fg.gif null: bg.gif -compose lighten -layers Composite out.gif
 +
 +Greenify mode (light-on-dark stuff)
 +  convert in.gif -colorspace gray   ​-channel G -function Polynomial 1,0 -channel RB -function Polynomial 0 out.gif
 +
 +Inverse greenify mode (dark-on-light stuff)
 +  convert in.gif -colorspace gray   ​-channel G -function Polynomial 1,0 -channel RB -function Polynomial 0 out.gif
image_magick_recipes.txt ยท Last modified: 2012/06/11 16:42 by tkbletsc