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Re: Writing PNG file in pure IDL with metadata [message #92145 is a reply to message #92144]

Tue, 20 October 2015 04:23

Mark[1]
Messages: 66
Registered: February 2008

Member

On Tuesday, 20 October 2015 20:39:13 UTC+13, andrew...@gmail.com wrote:
> Hi All,
>
> I have a bunch of Canon RAW .CR2 files that I'd like to transmogrify
> into PNG files with nice informative metadata embedded in them.
>
> Unfortunately IDL's inbuilt READ_PNG and WRITE_PNG don't know that PNG files can take metadata, and it looks like I'll be old, fat and bald before they do.
> Wait, I am old, fat and bald... :-(
>
> Anyway, I wondering if anyone has invented this particular wheel before.
> I'd be happy to work with a pure IDL write routine, or some method of Spawning off a command to a 3rd party program.
>
> TIA,
>
> Andrew

ImageMagick should do this:

http://www.imagemagick.org/Usage/basics/#attributes

It's available on Linux, obviously, and on Windows via Cygwin. I haven't used ImageMagick for this purpose but I do regularly use it from IDL for format conversion (usually on windows via Cygwin).

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[Message index]

		Writing PNG file in pure IDL with metadata By: andrewcool777 on Tue, 20 October 2015 00:39
		Re: Writing PNG file in pure IDL with metadata By: Mark[1] on Tue, 20 October 2015 04:23
		Re: Writing PNG file in pure IDL with metadata By: andrewcool777 on Tue, 20 October 2015 04:28
		Re: Writing PNG file in pure IDL with metadata By: Jim Pendleton on Wed, 21 October 2015 10:13
		Re: Writing PNG file in pure IDL with metadata By: andrewcool777 on Mon, 07 December 2015 19:16
		Re: Writing PNG file in pure IDL with metadata By: MarioIncandenza on Tue, 08 December 2015 13:52
		Re: Writing PNG file in pure IDL with metadata By: andrewcool777 on Sat, 12 December 2015 23:53
		Re: Writing PNG file in pure IDL with metadata By: mick.mitanirc3 on Fri, 11 December 2015 13:25

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