Re: How to use 'convert' to change several from png to jpg?

2010-08-10 Thread Brian Cluff 

On 08/10/2010 08:52 AM, Alex Dean wrote:

The imagemagick suite of software comes with a nice utility called
mogrify in a nut shell it does what convert does, but it does it to
the files directly. The best part is, that is takes all the same
arguments as convert.


FYI convert is also part of imagemagick.


Oops, mean to say "The imagemagick suite of software also comes with a 
nice utility called mogrify"


Brian Cluff
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Re: How to use 'convert' to change several from png to jpg?

2010-08-10 Thread Alex Dean 


On Aug 10, 2010, at 1:46 AM, Brian Cluff wrote:

The imagemagick suite of software comes with a nice utility called  
mogrify in a nut shell it does what convert does, but it does it to  
the files directly.  The best part is, that is takes all the same  
arguments as convert.


FYI convert is also part of imagemagick.
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Re: How to use 'convert' to change several from png to jpg?

2010-08-09 Thread Brian Cluff 
The imagemagick suite of software comes with a nice utility called 
mogrify in a nut shell it does what convert does, but it does it to the 
files directly.  The best part is, that is takes all the same arguments 
as convert.


Try simply doing:
mogrify -type jpg -resize 900 -quality 90% *.png

and all your PNGs will become jpgs

You could also do it the brute force method with convert:
for I in *.png; do
convert -resize 900 -quality 90% $I ${I%.*}.png
rm $I
done

Brian Cluff

On 08/09/2010 10:42 PM, j...@actionline.com wrote:


I use the following script to convert a batch of images to a uqiform width
of 900 pixels.  It works fine ... but how do I need to modify it to do the
same task but also convert all the originals that are .png files to .jpg?

mkdir 900
find -type f -maxdepth 1 -print0 | xargs -r -0 -ixxx convert -resize 900
-quality 90% xxx ./900/xxx



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Re: How to use 'convert' to change several from png to jpg?

2010-08-09 Thread Tuna 

On 08/09/2010 10:42 PM, j...@actionline.com wrote:

I use the following script to convert a batch of images to a uniform width
of 900 pixels.  It works fine ... but how do I need to modify it to do the
same task but also convert all the originals that are .png files to .jpg?

mkdir 900
find -type f -maxdepth 1 -print0 | xargs -r -0 -ixxx convert -resize 900
-quality 90% xxx ./900/xxx

   

find -type f -maxdepth 1 -print0 | xargs -r -0 -ixxx convert -resize 900
-quality 90% xxx ./900/$(basename xxx .png).jpg

convert works by file extensions. I haven't tested this, so experiment with it
before destroying all your images. :P



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