[magick-users] Re: Magick-users Digest, Vol 51, Issue 8

lalitha bhamidi lalithabhamidi at gmail.com
Mon Apr 16 07:17:55 PDT 2007 

Hai,
I am using Imagemagick 6.3.3 Q16 in C API and i am working on WINDOWS
XP.Iam Trying to display image using MagickDisplayImage().But i am
unable to
know about X server.Actually wat it is and wat we shud give in place of
that.Can u suggest me.i am stuck in that for past 1 week.Thanks in Advance


On 4/11/07, magick-users-request at imagemagick.org <
magick-users-request at imagemagick.org> wrote:
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> Today's Topics:
>
>   1. ImageInfo's setQuality doesnt seems to work (Martin Oligny)
>   2. jpeg2000 (Roman Yaker)
>   3. perlmagick to check jpeg2000 integrity (Roman Yaker)
>   4. Re: JPG compression levels (Yuval Levy)
>   5. -transparent on a range (Christoph P. Kukulies)
>   6. Re: -transparent on a range (omicronpersei8 at imagemagick.org)
>   7. ImageInfo's setQuality doesnt seems to work (Martin Oligny)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 9 Apr 2007 15:16:44 -0400
> From: "Martin Oligny" <MOligny at mediagrif.com>
> Subject: [magick-users] ImageInfo's setQuality doesnt seems to work
> To: <magick-users at imagemagick.org>
> Message-ID:
>        <
> BE2E4FB5FE474F49A9DEA7B72EF201D5035B514D at stimxch1.dev.mediagrif.com>
> Content-Type: text/plain;       charset="us-ascii"
>
> Hi,
>
> I'm using Jmagick for ImageMagick 6.1.8
>
> I'm tryin to lower the quality of a jpg, without altering its size. My
> guess is what i did in that snippet, without success :
>
> wImage = new MagickImage();
>
> wImage.blobToImage( wInfo, wOut.toByteArray() );
>
> wImage.setMagick( wMagick );
>
> wImage.setCompression(CompressionType.JPEGCompression);
>
> wImage.profileImage("*", null);
>
> wImage.enhanceImage();
>
> wInfo.setCompression(CompressionType.JPEGCompression);
>
> wInfo.setQuality(10);
>
> return wImage.imageToBlob( wInfo );
>
>
>
> I've been able to apply many modification to the jpg with success, but
> 'just' setting a different quality doesnt seems to work; The result is
> the same, in file size and human eye analysis.
>
>
>
> Am i doing something wrong? Is the feature bugged? Why setQuality on
> ImageInfo and not on MagickImage?
>
>
>
> Thanks a lot!
>
>
>
> Mart.
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 9 Apr 2007 15:13:12 -0500
> From: "Roman Yaker" <Roman.Yaker at emageon.com>
> Subject: [magick-users] jpeg2000
> To: <magick-users at imagemagick.org>
> Message-ID:
>        <ADD82BC47F060A4F91455E10CBE580D04265EC at Neon.emageon.local>
> Content-Type: text/plain;       charset="us-ascii"
>
> Hi,
>
>
>
> I am trying to verify the integrity of a jpeg2000 lossless file.
>
>
>
> Can this be achieved using perlMagick, and if so, how?
>
>
>
> Thank you in advance,
>
> Roman
>
>
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>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 9 Apr 2007 15:42:18 -0500
> From: "Roman Yaker" <Roman.Yaker at emageon.com>
> Subject: [magick-users] perlmagick to check jpeg2000 integrity
> To: <magick-users at imagemagick.org>
> Message-ID:
>        <ADD82BC47F060A4F91455E10CBE580D04265FD at Neon.emageon.local>
> Content-Type: text/plain;       charset="us-ascii"
>
> I found that there is an attribute in the Get() method, called format.
>
>
>
> This attribute returns the format of the file.
>
>
>
> The format may be jp2, gif, etc.
>
>
>
> I was wondering if anyone knows whether or not it uses the headers or
> meta information to find this out, or whether it actually checks the
> compression itself, which would be more substantial.
>
>
>
> We are seeking to find in a list of files, those that may be corrupt or
> partial jpeg2000's
>
>
>
> Thanks,
>
> Roman
>
>
> This message may contain confidential, proprietary, and/or privileged
> information and is
> intended only for the individual named. If you are not the named or
> intended addressee you
> may not disseminate, distribute or copy this e-mail. Please notify the
> sender immediately
> by e-mail if you have received this e-mail by mistake and delete this
> e-mail from your system.
> E-mail transmission cannot be guaranteed to be secure or error-free as
> information could be
> intercepted, corrupted, lost, destroyed, arrive late or incomplete, or
> contain viruses. The
> sender therefore does not accept liability for any errors or omissions
> related to the
> transmission of this email or the contents of this email message. If
> verification or receipt
> of delivery is required please request a hard-copy version of this email
> transmission.
> Emageon, 1200 Corporate Drive, Suite 200, Birmingham, AL  35242
> http://www.emageon.com
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 10 Apr 2007 10:04:32 -0400
> From: Yuval Levy <imagemagick07 at sfina.com>
> Subject: Re: [magick-users] JPG compression levels
> To: Wolfgang Hugemann <Auto at Hugemann.de>,       Anthony Thyssen
>        <anthony at griffith.edu.au>
> Cc: magick-users at imagemagick.org
> Message-ID: <461B9970.1020902 at sfina.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Thank you, Anthony and Wolfgang. I solved the issue.
>
> Wolfgang Hugemann wrote:
> > There is a really nice visualisation of the single steps in JPEG Com
> > pression (deplorably only in German, but you'll get through it, I guess)
> > at http://www.spemaus.de/studium/visjpeg/applet.html
>
> wow! amazing! i have not gone through all of it but it is of excellent
> educational value (and it gave me a chance to refresh my Deutsch).
>
>
> Anthony Thyssen wrote:
> > | specifically I would like the edges of an image to not be compressed
> > | at all.
> > |
> > I dodn't even know that was posible with the JPEG format!
> > I doubt IM convert (which calls the libjpeg library) will do that.
>
>
> the solution:
> * produce two versions of the same image with ImageMagick, one at
> quality 100 and the other at quality 60
> * use jpegtran to crop the q60, shaving off 8 pixels on each side
> * use jpegtran to merge the q60 on top of the q100
> * use jpegtran to merge to a stripe
>
> results and details at <http://www.photopla.net/wwp0703/stripes.php>
>
> Greetings from Quebec
> Yuv
>
>
> ------------------------------
>
> Message: 5
> Date: Tue, 10 Apr 2007 16:43:56 +0200
> From: "Christoph P. Kukulies" <kuku at kukulies.org>
> Subject: [magick-users] -transparent on a range
> To: magick-users at imagemagick.org
> Message-ID: <20070410144356.GA80860 at kukulies.org>
> Content-Type: text/plain; charset=iso-8859-1
>
> When making a gif transparent, e.g.
>
> mogrify -transparent white image.gif
>
> it would be sometimes desirable to specify a range for the rgb-value
> to be take for transparency. E.g. you have a jpg which has some
> interpolation
> in the white areas so that #fefeff and #ffffff are there but should be
> counted
> being white. Is there such as an option?
>
> --
> Chris Christoph P. U. Kukulies kuku_at_kukulies.org
>
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 10 Apr 2007 10:08:22 -0700
> From: omicronpersei8 at imagemagick.org
> Subject: Re: [magick-users] -transparent on a range
> To: kuku at kukulies.org, magick-users at imagemagick.org
> Message-ID: <200704101708.l3AH8MW8003266 at studio.imagemagick.org>
>
> > it would be sometimes desirable to specify a range for the rgb-value
>
> Use -fuzz.  The range is about the transparent color you specify.
>
>
> ------------------------------
>
> Message: 7
> Date: Tue, 10 Apr 2007 13:40:35 -0400
> From: "Martin Oligny" <MOligny at mediagrif.com>
> Subject: [magick-users] ImageInfo's setQuality doesnt seems to work
> To: <magick-users at imagemagick.org>
> Message-ID:
>        <
> BE2E4FB5FE474F49A9DEA7B72EF201D5035B514E at stimxch1.dev.mediagrif.com>
> Content-Type: text/plain;       charset="us-ascii"
>
> Hi,
>
> I'm using Jmagick for ImageMagick 6.1.8
>
> I'm tryin to lower the quality of a jpg, without altering its size. My
> guess is what i did in that snippet, without success :
>
> wImage = new MagickImage();
>
> wImage.blobToImage( wInfo, wOut.toByteArray() );
>
> wImage.setMagick( wMagick );
>
> wImage.setCompression(CompressionType.JPEGCompression);
>
> wImage.profileImage("*", null);
>
> wImage.enhanceImage();
>
> wInfo.setCompression(CompressionType.JPEGCompression);
>
> wInfo.setQuality(10);
>
> return wImage.imageToBlob( wInfo );
>
> I've been able to apply many modification to the jpg with success, but
> 'just' setting a different quality doesnt seems to work; The result is
> the same, in file size and human eye analysis.
>
> Am i doing something wrong? Is the feature bugged? Why setQuality on
> ImageInfo and not on MagickImage?
>
> Thanks a lot!
>
> Mart.
>
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> End of Magick-users Digest, Vol 51, Issue 8
> *******************************************
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