Re: Fwd: [darktable-user] .jpg file verifier

Sun, 04 Apr 2021 22:46:18 -0700 

One of the disadvantages of clipping is that you lose context. Here is
the original post:

    is there a linux program that will verify the contents of a jpg file
    independent of darktable?

It doesn't sound like he's on Windows :-).

Michael <[email protected]> wrote:

> isn't that a linux thing? He's probab;y on windows which means he will
> need to install cygwin or something similar first.
>      https://itsfoss.com/run-linux-commands-in-windows/
> then figure out how to install convert
> 
> On Sat, Apr 3, 2021 at 5:56 PM KOVÁCS István <[email protected]> wrote:
> >
> > One way to 'verify' the data is to decode the file. The following
> > command will try to convert the JPG into PNM, but will not actually
> > write the output file. If an error occurs, it'll be printed. E.g. for
> > an intentionally corrupted file:
> > kofa@eagle:~$ convert /tmp/test.jpg -format pnm - >/dev/null
> > convert-im6.q16: Corrupt JPEG data: premature end of data segment
> > `/tmp/test.jpg' @ warning/jpeg.c/JPEGWarningHandler/386.
> >
> > You can get 'convert' from ImageMagick or from GraphicsMagick.
> >
> > Kofa
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> >
> 
> 
> --
> :-)~MIKE~(-:
> 
> 
> --
> :-)~MIKE~(-:
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-- 
Bill Wohler <[email protected]> aka <[email protected]>
http://www.newt.com/wohler/, GnuPG ID:610BD9AD
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