JPEG Image Quality - how good is it?

IMagick is a native PHP extension to create and modify images using the ImageMagick API. ImageMagick Studio LLC did not write nor does it maintain the IMagick extension, however, IMagick users are welcome to discuss the extension here.
Fubster

Re: JPEG Image Quality - how good is it?

Post by Fubster »

Checked to be sure:

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# /usr/local/bin/convert -list
-bash: /usr/local/bin/convert: No such file or directory

root@superbad [~]# /usr/bin/convert -list
Version: ImageMagick 5.5.1 10/20/02 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 2002 ImageMagick Studio LLC...
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fmw42
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Re: JPEG Image Quality - how good is it?

Post by fmw42 »

to get the IM version the command is

convert -version

identify -version


convert -list option

needs an option, such as

convert -list list
or
convert -list type
etc
Fubster

Re: JPEG Image Quality - how good is it?

Post by Fubster »

Thanks, rans that command to be sure, and it returned the same info:

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# convert -version
Version: ImageMagick 5.5.1 10/20/02 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 2002 ImageMagick Studio LLC
And I ran this again, just to be sure:

Code: Select all

# convert -list list
convert: Invalid list type (list).
I guess version 5.5.1 does not support "list" as an option. However, it did return a font list for "convert -list type"

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# convert -list type
Path: /usr/lib/ImageMagick-5.5.1/type-ghostscript.mgk

Name                             Family                  Style   Stretch  Weight
--------------------------------------------------------------------------------
AvantGarde-Book                  AvantGarde              normal  normal    400
AvantGarde-BookOblique           AvantGarde              oblique normal    400
AvantGarde-Demi                  AvantGarde              normal  normal    600
AvantGarde-DemiOblique   [it continues...]
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fmw42
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Re: JPEG Image Quality - how good is it?

Post by fmw42 »

You are probably right as IM 5.x is so very old. You should consider getting an update to at least some version of IM 6
Fubster

Re: JPEG Image Quality - how good is it?

Post by Fubster »

A few questions about installing.
First, should I do a "yum remove ImageMagick"?
This is the response I get when I do it. I have answered no at this point:

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# yum remove ImageMagick
Loaded plugins: fastestmirror
Setting up Remove Process
Resolving Dependencies
--> Running transaction check
---> Package ImageMagick.i386 0:6.2.8.0-4.el5_5.3 set to be erased
--> Processing Dependency: libMagick.so.10 for package: ImageMagick-devel
--> Processing Dependency: libWand.so.10 for package: ImageMagick-devel
--> Processing Dependency: ImageMagick = 6.2.8.0-4.el5_5.3 for package: ImageMagick-devel
--> Running transaction check
---> Package ImageMagick-devel.i386 0:6.2.8.0-4.el5_5.3 set to be erased
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================================================
 Package                        Arch              Version                          Repository              Size
================================================================================================================
Removing:
 ImageMagick                    i386              6.2.8.0-4.el5_5.3                installed               11 M
Removing for dependencies:
 ImageMagick-devel              i386              6.2.8.0-4.el5_5.3                installed              312 k

Transaction Summary
================================================================================================================
Remove        2 Package(s)
Reinstall     0 Package(s)
Downgrade     0 Package(s)

Is this ok [y/N]: n
Exiting on user Command
Complete!
I am confused by the 6.2.8 reported here, since I can only seem to access version 5.5.1.

Second, I have downloaded the latest *.tar.gz version of each of the delegates from the imagemagick ftp site. What do I need to do to install them? For instance, I unzipped jpef-8b, then went into that directory, and ran "./configure make", it replied with

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# ./configure make
configure: WARNING: you should use --build, --host, --target
checking build system type... Invalid configuration `make': machine `make' not recognized
configure: error: /bin/sh ./config.sub make failed
Should I use "./configure build"? So for such noob questions here, I've never installed stuff on a unix/linux machine before.
Will it be the same command for each delegate?

Third, do I need to do any special when making/installing ImageMagick to make it pull-in these delegates?

Fourth, should I be doing all this from any specific directory? I created a /im directory, and doing all this from there...but I can move it if I need to.

As always, I greatly appreciate the help I have received here :)
Bonzo
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Location: Cambridge, England

Re: JPEG Image Quality - how good is it?

Post by Bonzo »

I just did what I said on a previous post to install and it worked OK.

You do have two versions on the server but the problem is finding where the one you want is. Removing the 6.2.8 and reinstalling will probably not help.

Try this and any other variations you can think of:

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<?php 
echo "<pre>"; 
system("/usr/local/bin/convert -version");   
echo "</pre>"; 

echo "<pre>"; 
system("/usr/bin/convert -version");   
echo "</pre>"; 
 
echo "<pre>"; 
system("/usr/local/convert -version");   
echo "</pre>"; 


echo "<pre>"; 
system("convert -version");   
echo "</pre>"; 
?> 
Fubster

Re: JPEG Image Quality - how good is it?

Post by Fubster »

I did all the examples you suggested, and only got a hit on "/usr/bin/convert -version", which reported 5.5.1

Then I did a find (gotta love google):

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# find / -name convert
/usr/bin/convert
/home/username1/public_html/testforum/sources/loginauth/convert
/home/username1/public_html/test/forum/sources/loginauth/convert
/home/username1/public_html/forum/sources/loginauth/convert
/home/cpimins/magick/ImageMagick-5.5.1/utilities/convert
/home/cpimins/magick/ImageMagick-5.5.1/utilities/.libs/convert
First one is the one we know about. Last two both reported version 5.5.1. Middle three responded with "-bash: [whatever] is a directory"

I understand your previous install instructions, and I can follow them...I was simply concerned because that does not address the issue of delegates at all (as far as I can tell). If I am mistaken, please tell me.
Bonzo
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Joined: 2006-05-20T08:08:19-07:00
Location: Cambridge, England

Re: JPEG Image Quality - how good is it?

Post by Bonzo »

Thats funny I am just running "find / -name 'convert'" as well :lol:

Also found it with Google; my result was: /usr/bin/convert
Fubster

Re: JPEG Image Quality - how good is it?

Post by Fubster »

I'm still a noob, even if I can use google. And it doesn't answer any of the questions, since I never found a hit on anything that reported a version other than 5.5.1.
Bonzo
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Joined: 2006-05-20T08:08:19-07:00
Location: Cambridge, England

Re: JPEG Image Quality - how good is it?

Post by Bonzo »

All I can say is it worked for me; not being a Linux user I understood that when you install software it automaticaly installed the depedencies ?

But again if you are going to install over the 6.2.8 version is php going to be able to find it ?
Fubster

Re: JPEG Image Quality - how good is it?

Post by Fubster »

Oh boy, oh boy, I think I'm there! I did the configure, make, make install...then my "find" command found a new one: usr/local/bin/convert. That one reports version 6.6.4-10. And, I accessed it via php:

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echo "<pre>";
system("/usr/local/bin/convert -version");   
echo "</pre>"; 	
As a final test, I converted my Photoshop.jpg using that path......and viola!
Image

Thank you BOTH SO MUCH!!!
Bonzo
Posts: 2971
Joined: 2006-05-20T08:08:19-07:00
Location: Cambridge, England

Re: JPEG Image Quality - how good is it?

Post by Bonzo »

I am glad its sorted - I had my doubts that the new install would work.
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