IM 6.9.2 crash with some PNG

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kriks
Posts: 114
Joined: 2008-01-04T05:52:03-07:00

IM 6.9.2 crash with some PNG

Post by kriks » 2015-10-07T07:51:47-07:00

Hi

we recently encountered a problem that IM crashes with a command like this

Code: Select all

convert -verbose -background transparent trim.png  +repage -resample 300x300 -density 300 -resize x740 -gravity NorthEast -splice -228.10734463277x50 -gravity SouthWest -splice 50x50 +repage -compress LZW -quality 90 PNG32:out.png
trim.png PNG 3148x4055 3148x4055+0+0 8-bit sRGB 9.158MB 0.000u 0:00.000
Abandon
I cannot give the source file publicly, but I can send it to IM people if needed.
The source PNG is also the result of another convert command.

I've tested it on gentoo and mageia.

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fmw42
Posts: 25274
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Authentication code: 1152
Location: Sunnyvale, California, USA

Re: IM 6.9.2 crash with some PNG

Post by fmw42 » 2015-10-07T09:14:31-07:00

-quality 90
FYI, 90 means something different for PNG than it does for JPG. See http://www.imagemagick.org/script/comma ... hp#quality

Also you may be running out of tmp space. Check your tmp directory to see if it needs cleaning out from old files left behind that were not cleaned up automatically.

snibgo
Posts: 11930
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Location: England, UK

Re: IM 6.9.2 crash with some PNG

Post by snibgo » 2015-10-07T09:53:14-07:00

It just says "Abandon" when it fails? I've never seen that.

What is the density of the input file? "-resample" can try to make very large sizes if the input desity is weird.
snibgo's IM pages: im.snibgo.com

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glennrp
Posts: 1147
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Re: IM 6.9.2 crash with some PNG

Post by glennrp » 2015-10-07T10:34:49-07:00

If you have pngcheck, you can post the output of "pngcheck -v file.png", which should give us enough information to diagnose the problem.

kriks
Posts: 114
Joined: 2008-01-04T05:52:03-07:00

Re: IM 6.9.2 crash with some PNG

Post by kriks » 2015-10-08T04:25:51-07:00

Thank you all for having a look.

For the /tmp, I have 20GB available, it should be enough :)

Here is the pngcheck output :

Code: Select all

# pngcheck -v trim.png 
File: trim.png (9158238 bytes)
  chunk IHDR at offset 0x0000c, length 13
    3148 x 4055 image, 32-bit RGB+alpha, interlaced
  chunk cHRM at offset 0x00025, length 32
    White x = 0.3127 y = 0.329,  Red x = 0.64 y = 0.33
    Green x = 0.3 y = 0.6,  Blue x = 0.15 y = 0.06
  chunk bKGD at offset 0x00051, length 6
    red = 0x00ff, green = 0x00ff, blue = 0x00ff
  chunk pHYs at offset 0x00063, length 9: 47834x47834 pixels/meter (1215 dpi)
  chunk IDAT at offset 0x00078, length 32768
    zlib: deflated, 32K window, maximum compression
    rows per pass: 507, 507, 507, 1014, 1014, 2028, 2027
  chunk IDAT at offset 0x08084, length 32768
  chunk IDAT at offset 0x10090, length 32768
  chunk IDAT at offset 0x1809c, length 32768
  chunk IDAT at offset 0x200a8, length 32768
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  chunk IDAT at offset 0x8b8d8c, length 12478
  chunk IEND at offset 0x8bbe56, length 0
No errors detected in trim.png (285 chunks, 82.1% compression).
here is an identify output

Code: Select all

# identify -verbose trim.png            
Image: trim.png
  Format: PNG (Portable Network Graphics)
  Mime type: image/png
  Class: DirectClass
  Geometry: 3148x4055+0+0
  Resolution: 478.34x478.34
  Print size: 6.58109x8.47723
  Units: PixelsPerCentimeter
  Type: TrueColorAlpha
  Endianess: Undefined
  Colorspace: sRGB
  Depth: 8-bit
  Channel depth:
    red: 8-bit
    green: 8-bit
    blue: 8-bit
    alpha: 1-bit
  Channel statistics:
    Pixels: 12765140
    Red:
      min: 0 (0)
      max: 255 (1)
      mean: 246.909 (0.968272)
      standard deviation: 27.0745 (0.106174)
      kurtosis: 43.4289
      skewness: -5.99989
      entropy: 0.276577
    Green:
      min: 0 (0)
      max: 255 (1)
      mean: 241.314 (0.946329)
      standard deviation: 35.0938 (0.137623)
      kurtosis: 17.1845
      skewness: -3.74818
      entropy: 0.301701
    Blue:
      min: 0 (0)
      max: 255 (1)
      mean: 230.647 (0.904497)
      standard deviation: 52.4057 (0.205512)
      kurtosis: 4.10558
      skewness: -2.19892
      entropy: 0.318425
    Alpha:
      min: 0 (0)
      max: 255 (1)
      mean: 55.1324 (0.216205)
      standard deviation: 104.972 (0.411656)
      kurtosis: -0.0989223
      skewness: -1.3788
      entropy: 0.0941472
  Image statistics:
    Overall:
      min: 0 (0)
      max: 255 (1)
      mean: 229.684 (0.900723)
      standard deviation: 62.7099 (0.245921)
      kurtosis: 8.26207
      skewness: -3.15189
      entropy: 0.247712
  Alpha: srgba(255,255,255,0)   #FFFFFF00
  Rendering intent: Perceptual
  Gamma: 0.454545
  Chromaticity:
    red primary: (0.64,0.33)
    green primary: (0.3,0.6)
    blue primary: (0.15,0.06)
    white point: (0.3127,0.329)
  Background color: white
  Border color: srgba(223,223,223,1)
  Matte color: grey74
  Transparent color: none
  Interlace: PNG
  Intensity: Undefined
  Compose: Over
  Page geometry: 3148x4055+0+0
  Dispose: Undefined
  Iterations: 0
  Compression: Zip
  Orientation: Undefined
  Properties:
    date:create: 2015-10-01T15:14:19+02:00
    date:modify: 2015-10-01T14:16:41+02:00
    png:bKGD: chunk was found (see Background color, above)
    png:cHRM: chunk was found (see Chromaticity, above)
    png:IHDR.bit-depth-orig: 8
    png:IHDR.bit_depth: 8
    png:IHDR.color-type-orig: 6
    png:IHDR.color_type: 6 (RGBA)
    png:IHDR.interlace_method: 1 (Adam7 method)
    png:IHDR.width,height: 3148, 4055
    png:pHYs: x_res=47834, y_res=47834, units=1
    png:sRGB: intent=0 (Perceptual Intent)
    signature: 1b2de8cdec0f61064251d6460fd8c37c3a77d0903f9179c011b7a2912f9ad6af
  Artifacts:
    filename: trim.png
    verbose: true
  Tainted: False
  Filesize: 9.158MB
  Number pixels: 12.77M
  Pixels per second: 271.6GB
  User time: 0.000u
  Elapsed time: 0:01.000
  Version: ImageMagick 6.9.2-0 Q16 x86_64 2015-10-01 http://www.imagemagick.org

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dlemstra
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Re: IM 6.9.2 crash with some PNG

Post by dlemstra » 2015-10-09T01:09:14-07:00

Thanks for providing the image (too bad we don't get whats on it :) ). We are able to reproduce the issue and just pushed a fix for this to our GIT repository. Your issue will be fixed in the next release of ImageMagick (6.9.2-4) that will be published soon.
.NET + ImageMagick = Magick.NET https://github.com/dlemstra/Magick.NET, @MagickNET, Donate

kriks
Posts: 114
Joined: 2008-01-04T05:52:03-07:00

Re: IM 6.9.2 crash with some PNG

Post by kriks » 2015-10-09T01:17:48-07:00

Thank you very much!
Can you tell me what was the problem ?

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dlemstra
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Re: IM 6.9.2 crash with some PNG

Post by dlemstra » 2015-10-09T03:20:48-07:00

The problem was in the -split operation. It was accessing pixels outside the image and that caused an access violation.
.NET + ImageMagick = Magick.NET https://github.com/dlemstra/Magick.NET, @MagickNET, Donate

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