Odd image bleed when using convert under CentOS in a script.

[peter]

I'm having a strange problem where I get funny "bleed" at the bottom of the images.

I'm doing a basic resize operation on a host of images, the convert command line looks like:

/usr/bin/convert $image -resize ${size}x${size} $OUTDIR/$image

I'm taking in an 888x888 and making it into 420x420, 150x150, 100x100, and 50x50.

The original jpg is compressed, and I seem to be hitting a bug in conversion.

I can give examples if necessary, the behavior is consistent.

Peter

[fmw42]

does it happen with other image types (gif, png, tif)?

is it jpeg2000?

what version of IM?

what version of jpeg delegate library?

can you post an example image?

[peter]

does it happen with other image types (gif, png, tif)?

is it jpeg2000?

what version of IM?

what version of jpeg delegate library?

can you post an example image?

1. Don't know about other image types, I've never tried, and I don't have any other image source types. The behavior is not consistent with all images, just a handful so far, it *might* be consistent with all, but I haven't checked them all yet. I know it consistently happens with a few that I've found, maybe 5 out of 100.

2. Not sure if it's jpeg2000 or not, how would I know? file reports:

2a. Original 888:
[pserwe@pythagoras 888]$ file 7310012519753.jpg
7310012519753.jpg: JPEG image data, JFIF standard 1.02

2b. Converted 420:

[pserwe@pythagoras 420]$ file 7310012519753.jpg
7310012519753.jpg: JPEG image data, JFIF standard 1.01

All of the other converted images also show JFIF standard 1.01

3. IM version:

[pserwe@pythagoras 150]$ convert --version
Version: ImageMagick 6.2.8 04/17/08 Q16 file:/usr/share/ImageMagick-6.2.8/doc/index.html
Copyright: Copyright (C) 1999-2006 ImageMagick Studio LLC


4. jpeg library, do you mean libjpeg?:

libjpeg.i386 6b-37 installed
libjpeg.x86_64 6b-37 installed
libjpeg-devel.i386 6b-37 installed
libjpeg-devel.x86_64 6b-37 installed

5. Example images:







The first one is the original source image (888x888), the second through the 5th are the converted output.

Peter

[peter]

Interestingly, the images don't show corruption via this venue.

They are being posted in a storefront. I need to try and determine why the storefront host shows image corruption when I don't see it via apache on the box I'm converting on.

Peter

[fmw42]

I don't see any bleed? Can you point that out better? Or provide another example where it is more prominent?

You do have rather old IM. Perhaps you should upgrade that and look and see if there is a more current libjpg as well.

[peter]

I went ahead and upgraded the IM and libjpeg to the latest source tarballs, removed the old ones, built and installed the new.

One issue I'm having that I cannot seem to figure out when I started trying to test the new one, was:

[pserwe@pythagoras ~]$ /usr/local/bin/convert imgimport/in/888/7310012519753.jpg -resize 420x420 imgimport/out/420/7310012519753.jpg
convert: missing an image filename `imgimport/out/420/7310012519753.jpg' @ convert.c/ConvertImageCommand/2822.
[pserwe@pythagoras ~]$

Basically echoes the exact same command line I've been using for weeks with the older CentOS-version of convert.

Did something change dramatically? I can't even get this version to work at all at this point.

Peter

[peter]

[pserwe@pythagoras ~]$ /usr/local/bin/convert --version
Version: ImageMagick 6.5.6-9 2009-10-06 Q16 OpenMP http://www.imagemagick.org
Copyright: Copyright (C) 1999-2009 ImageMagick Studio LLC

[pserwe@pythagoras ~]$ ldd /usr/local/bin/convert
libMagickCore.so.2 => /usr/local/lib/libMagickCore.so.2 (0x00002acf4f638000)
libMagickWand.so.2 => /usr/local/lib/libMagickWand.so.2 (0x00002acf4fa77000)
libtiff.so.3 => /usr/lib64/libtiff.so.3 (0x0000003447a00000)
libfreetype.so.6 => /usr/lib64/libfreetype.so.6 (0x0000003042c00000)
libjpeg.so.62 => /usr/lib64/libjpeg.so.62 (0x0000003041800000)
libfontconfig.so.1 => /usr/lib64/libfontconfig.so.1 (0x0000003043c00000)
libXext.so.6 => /usr/lib64/libXext.so.6 (0x0000003041c00000)
libXt.so.6 => /usr/lib64/libXt.so.6 (0x000000303b400000)
libbz2.so.1 => /usr/lib64/libbz2.so.1 (0x0000003446a00000)
libz.so.1 => /usr/lib64/libz.so.1 (0x000000303b000000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x000000303a800000)
libdl.so.2 => /lib64/libdl.so.2 (0x000000303a400000)
libSM.so.6 => /usr/lib64/libSM.so.6 (0x0000003046800000)
libICE.so.6 => /usr/lib64/libICE.so.6 (0x0000003047000000)
libX11.so.6 => /usr/lib64/libX11.so.6 (0x0000003041000000)
libgomp.so.1 => /usr/lib64/libgomp.so.1 (0x00002acf4fdb1000)
libm.so.6 => /lib64/libm.so.6 (0x000000303ac00000)
libc.so.6 => /lib64/libc.so.6 (0x000000303a000000)
libjpeg.so.7 => /usr/local/lib/libjpeg.so.7 (0x00002acf4ffba000)
libexpat.so.0 => /lib64/libexpat.so.0 (0x0000003043000000)
libXau.so.6 => /usr/lib64/libXau.so.6 (0x0000003040400000)
/lib64/ld-linux-x86-64.so.2 (0x0000003039c00000)
libXdmcp.so.6 => /usr/lib64/libXdmcp.so.6 (0x0000003040800000)
librt.so.1 => /lib64/librt.so.1 (0x000000303bc00000)
[pserwe@pythagoras ~]$

[fmw42]

if you installed from source, then you need to install all the delegate libraries, such as libjpeg for jpg file type.

see http://www.imagemagick.org/download/delegates/

but I would search the web for more current versions

you can check what IM knows about using

convert -list configure

and looking at the line starting with

DELEGATES

for example for my system, I have

DELEGATES bzlib fftw fontconfig freetype gs jpeg jng jp2 lcms lqr openexr png tiff x11 xml zlib

but you only need install the ones you want to use

You can also do

convert -list type

and see if jpg has rw+ next to it

If you install any delegates now, then I believe you will have to reinstall IM afterwards

P.S. I downloaded your original ...888.jpg and I don't see anything odd about its properties using

identify -verbose image.jpg


where were you viewing them? what browser? could it be an upload problem to your server?

[peter]

Didn't see anything about jpg +rw from convert -list type, I did see jpg in delegates:

[pserwe@pythagoras ~]$ convert -list type
Bilevel
ColorSeparation
ColorSeparationMatte
Grayscale
GrayscaleMatte
Optimize
Palette
PaletteBilevelMatte
PaletteMatte
TrueColorMatte
TrueColor
[pserwe@pythagoras ~]$


DELEGATES bzlib fontconfig freetype jpeg jng png tiff x11 xml zlib

Peter

[fmw42]

sorry,

convert -list format

but looks like you have jpeg from the DELEGATES

[peter]

sorry,

convert -list format

but looks like you have jpeg from the DELEGATES

Yes, one would think so, but it seems I only have rw-, not rw+.

JPEG* JPEG rw- Joint Photographic Experts Group JFIF format (70)
JPG* JPEG rw- Joint Photographic Experts Group JFIF format (70)


I basically only want this tool for jpeg support, but I need to be able to write the files

Peter

[fmw42]

try reinstalling libjpeg (get the most current version), then recompile IM and check again

P.S. I am wrong about the +. On my system I get the same

JPEG* JPEG rw- Joint Photographic Experts Group JFIF format (62)
JPG* JPEG rw- Joint Photographic Experts Group JFIF format (62)

and I can write to jpg. Looking at the bottom of the listing I see + support for multiple images
and JPG does not support multi-frame images, as does gif or png.

So something else is not right and this is beyond me.


Did you check the permissions on the directory you want to write to?

[peter]

So,

It turns out that by looking at the file in photoshop, we can see where it wasn't completely written out.

Obviously, the ancient build of ImageMagick that is provided by CentOS has a problem, so at this point,
I just need to figure out how to build it with rw+ support for jpeg, and everything should be okay.

Peter

[fmw42]

check my post above. you cant have + and it does not matter. you only need rw-

[peter]

try reinstalling libjpeg (get the most current version), then recompile IM and check again

P.S. I am wrong about the +. On my system I get the same

JPEG* JPEG rw- Joint Photographic Experts Group JFIF format (62)
JPG* JPEG rw- Joint Photographic Experts Group JFIF format (62)

and I can write to jpg. Looking at the bottom of the listing I see + support for multiple images
and JPG does not support multi-frame images, as does gif or png.

So something else is not right and this is beyond me.


Did you check the permissions on the directory you want to write to?

Yep, I reinstalled the latest libjpeg and recompiled IM, are there any options to configure on either one of those that I need to be aware of?

Peter