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convert -identify without copying image?

Posted: 2012-08-11T04:47:04-07:00
by capncrunch9834
Is there a way to use convert -identify without copying the image to another file? It seems like I saw a post that discussed this but I can't find it anywhere.

On the windows cmd line I have something like this...

convert "imageIN.jpg" -verbose -identify "imageOUT.jpg" > info.txt

but what I am shooting for is something like...

convert "imageIN.jpg" -verbose -identify nul > info.txt
(or some equivalent)

All I want is the image info piped out to text without converting or copying the input image -- but to do so using convert only.

Re: convert -identify without copying image?

Posted: 2012-08-11T07:06:31-07:00
by Bonzo
Try using -ping

Untested

Code: Select all

identify -ping imageIN.jpg > info.txt

Re: convert -identify without copying image?

Posted: 2012-08-11T08:39:03-07:00
by pipitas
capncrunch9834 wrote:Is there a way to use convert -identify without copying the image to another file? It seems like I saw a post that discussed this but I can't find it anywhere.

On the windows cmd line I have something like this...

convert "imageIN.jpg" -verbose -identify "imageOUT.jpg" > info.txt

but what I am shooting for is something like...

convert "imageIN.jpg" -verbose -identify nul > info.txt
(or some equivalent)

All I want is the image info piped out to text without converting or copying the input image -- but to do so using convert only.
Why can't you simply use

Code: Select all

identify -verbose imageN.jpg > info.txt
?

Re: convert -identify without copying image?

Posted: 2012-08-11T10:44:53-07:00
by fmw42
I believe this is really what you want:


convert yourimage -verbose info: > yourimage_info.txt

see
http://www.imagemagick.org/Usage/files/#info

Re: convert -identify without copying image?

Posted: 2012-08-11T11:54:48-07:00
by capncrunch9834
That's the ticket! Thank you fmw42. As usual, you got it right.

Thanks!

Re: convert -identify without copying image?

Posted: 2012-08-16T18:17:14-07:00
by anthony
But this also works...

Code: Select all

 convert image.png -identify null:
See Identify and its Alternatives in IM Examples, basics
http://www.imagemagick.org/Usage/basics/#identify