Legacy ImageMagick Discussions Archive

Hi. I'm really new to window command prompt and image magick. I am attempting to try to replicate Burny's code here:

for i in {0..2001}; do 

convert GenerationLoss_step$i.jpg -rotate 90 -quality 85 GenerationLoss_step$(($i+1)).jpg

if [ $(($i%100)) -ne 0 ]; then
 rm GenerationLoss_step$i.jpg
fi
#
# (( i % 100 )) && rm GenerationLoss_step$i.jpg

echo -n "."

done

I've gotten it to do one iteration, but no more. I am running this through the command prompt (correct right?). If you have any advice, walkthroughs, or places where I should research, I would be much obliged. Again, apologizing ahead of time for being so noob.

That looks like Unix script to me. Windows isn't Unix. You can install cygwin to run Unix scripts, or you can translate it to Windows.

A translation to Windows BAT is:

Code: Select all

%IM%convert rose: GenerationLoss_step0.jpg

echo off

for /L %%i in (0,1,1999) do (
  set /A NEXT=%%i+1

  %IM%convert GenerationLoss_step%%i.jpg -rotate 90 -quality 85 GenerationLoss_step!NEXT!.jpg

  set /A x = ^(%%i/100^)*100
  if !x!==%%i (
    echo .
  ) else (
    del GenerationLoss_step%%i.jpg
  )
)

echo on

The outputs can be browsed to see the degeneration. It's quite instructive to change the quality setting. "100" gives a vast improvement.

Legacy ImageMagick Discussions Archive

Generation Loss

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Re: Generation Loss