Legacy ImageMagick Discussions Archive

Hello, I'm having a problem figuring out the syntax for padding 10-99. Everything else in the program works fine so I want to focus in on just this part of the code. Below is a snippet of the code that I am having problems with. I appreciate all the help I can get. Thank you.

The script basically takes an image and adds the convert charcoal filter and spits out a sequence the user specifies. Problem is if the frame goes over 100...the padding is thrown off since 100 is set for greater than or equal to, where 10-99 needs to be specified to a limit before 100.

I seen a for loop where it uses {10..99} like so...

for i in {10..99} etc... but that will not work, it only prints 10 through 99. Please help...

Code: Select all

                ##no problem here

                if [ $count -lt 10 ]; then 
		convert ${IMGDIR}${IMG} -charcoal $count ${OUTDIR}${OUT}.000$count.jpg
		fi


		##cant figure out the arithmatic here! 

	        if [ $count -ge 10 > 99 ]; then 
		convert ${IMGDIR}${IMG} -charcoal $count ${OUTDIR}${OUT}.00$count.jpg
		fi


		##no problems here.

		if [ $count -ge 100 ] ; then
		convert ${IMGDIR}${IMG} -charcoal $count ${OUTDIR}${OUT}.0$count.jpg
		fi

I am not exactly following though I have an idea.

Can you give a breif examples of of the file names?

Are that
1 2 3 ... 10 11 .. 99 100 101 ...
or are they padded like
001 002 .... 099 100 101

You have two solutions in that case.

In shell use

Code: Select all

   for count in `seq %05d 999`
        convert ....  ${OUTDIR}${OUT}.$count.jpg
   done

which will result in 5 digit padded numbers being stored in the $count variable
You can have teh sheel pad a number

Code: Select all

  for count in {1,.999}
      padded=`printf  %05d $count`
        convert ....  ${OUTDIR}${OUT}.$padded.jpg
   done

Or you can get IM to do the padding

Code: Select all

    convert  .....    -scene %count filename_%05d.jpg

the %05d inserts the 5 digit number with zero padding

See IM Examples...
File Handling, Writing a Multi-Image Sequence
http://www.imagemagick.org/Usage/files/#write_seq

NOTE -scenes is used for input -scene is used for output!

Hey thanks for that info. I actually got what I wanted using an if statement. The file name would be specified by $OUT by the user and the directory of OUT by $OUTDIR.

Code: Select all

	echo
	echo "2. Input what you would like to name your output files?"
	read OUT
	echo "the output name is now:" $OUT

Code: Select all

if [ $count -ge 10 ] && [ $count -le 99 ]; then
		convert ${IMGDIR}${IMG} -charcoal $count ${OUTDIR}${OUT}.00$count.jpg
fi

Legacy ImageMagick Discussions Archive

Imagemagick File Padding Issue

Imagemagick File Padding Issue

Re: Imagemagick File Padding Issue