Unable to read Orientation exif information from webp

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saurabheights
Posts: 8
Joined: 2016-09-24T05:16:10-07:00
Authentication code: 1151

Unable to read Orientation exif information from webp

Post by saurabheights » 2016-10-24T01:09:37-07:00

IM Info:-
Version: ImageMagick 7.0.3-0 Q16 x86_64 2016-09-09 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2016 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Features: Cipher DPC HDRI OpenMP
Delegates (built-in): bzlib djvu fftw fontconfig freetype jbig jng jpeg lcms lqr lzma openexr pangocairo png tiff webp wmf x xml zlib

I am creating webp from jpeg while preserving exif metadata using cwebp tool. When I try to read Orientation metadata, IM is not able to read it, but exiftool shows its there.

Code: Select all


$ identify  -format '%[exif:orientation]\n' AllExifOrientationValues/Orientation5.jpeg
5
$ cwebp -metadata exif AllExifOrientationValues/Orientation5.jpeg -o WebpOrientation/Orientation5.webp 
Saving file 'WebpOrientation/Orientation5.webp'
File:      AllExifOrientationValues/Orientation5.jpeg
Dimension: 1920 x 2560
Output:    353554 bytes Y-U-V-All-PSNR 39.65 46.55 45.75   40.95 dB
block count:  intra4: 13670
              intra16: 5530  (-> 28.80%)
              skipped block: 101 (0.53%)
bytes used:  header:            429  (0.1%)
             mode-partition:  49604  (14.0%)
 Residuals bytes  |segment 1|segment 2|segment 3|segment 4|  total
    macroblocks:  |       0%|       4%|      23%|      71%|   19200
      quantizer:  |      36 |      33 |      29 |      24 |
   filter level:  |      11 |       6 |       6 |      10 |
Metadata:
  * EXIF data:        90 bytes
$ identify  -format '%[exif:orientation]\n' WebpOrientation/Orientation5.webp
identify: unknown image property "%[exif:orientation]" @ warning/property.c/InterpretImageProperties/3823.

$ cwebp -version
0.5.1

$ exiftool -G WebpOrientation/Orientation5.webp 
[ExifTool]      ExifTool Version Number         : 9.46
[File]          File Name                       : Orientation5.webp
[File]          Directory                       : WebpOrientation
[File]          File Size                       : 345 kB
[File]          File Modification Date/Time     : 2016:10:24 13:02:32+05:30
[File]          File Access Date/Time           : 2016:10:24 13:02:51+05:30
[File]          File Inode Change Date/Time     : 2016:10:24 13:02:32+05:30
[File]          File Permissions                : rw-rw-r--
[File]          File Type                       : WEBP
[File]          MIME Type                       : image/webp
[File]          Exif Byte Order                 : Big-endian (Motorola, MM)
[RIFF]          VP8 Version                     : 0 (bicubic reconstruction, normal loop)
[RIFF]          Image Width                     : 1920
[RIFF]          Horizontal Scale                : 0
[RIFF]          Image Height                    : 2560
[RIFF]          Vertical Scale                  : 0

[EXIF]          Orientation                     : Mirror horizontal and rotate 270 CW

[EXIF]          X Resolution                    : 1
[EXIF]          Y Resolution                    : 1
[EXIF]          Resolution Unit                 : None
[EXIF]          Y Cb Cr Positioning             : Centered
[Composite]     Image Size                      : 1920x2560

$ exiftool -ver
9.46

$ identify -verbose WebpOrientation/Orientation5.webp
Image: WebpOrientation/Orientation5.webp
  Format: WEBP (WebP Image Format)
  Mime type: image/webp
  Class: DirectClass
  Geometry: 1920x2560+0+0
  Units: Undefined
  Type: TrueColor
  Endianess: Undefined
  Colorspace: sRGB
  Depth: 8-bit
  Channel depth:
    Red: 8-bit
    Green: 8-bit
    Blue: 8-bit
  Channel statistics:
    Pixels: 4915200
    Red:
      min: 0 (0)
      max: 255 (1)
      mean: 134.862 (0.528869)
      standard deviation: 55.6515 (0.218241)
      kurtosis: -0.760559
      skewness: -0.458743
      entropy: 0.948789
    Green:
      min: 0 (0)
      max: 255 (1)
      mean: 94.5574 (0.370813)
      standard deviation: 61.4918 (0.241144)
      kurtosis: -1.15862
      skewness: 0.328752
      entropy: 0.934995
    Blue:
      min: 0 (0)
      max: 255 (1)
      mean: 85.4911 (0.335259)
      standard deviation: 59.7074 (0.234147)
      kurtosis: -0.559961
      skewness: 0.65232
      entropy: 0.938899
  Image statistics:
    Overall:
      min: 0 (0)
      max: 255 (1)
      mean: 104.97 (0.411647)
      standard deviation: 59.0008 (0.231376)
      kurtosis: -0.70326
      skewness: 0.17154
      entropy: 0.940894
  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)
  Alpha color: grey74
  Background color: white
  Border color: srgb(223,223,223)
  Transparent color: none
  Interlace: None
  Intensity: Undefined
  Compose: Over
  Page geometry: 1920x2560+0+0
  Dispose: Undefined
  Iterations: 0
  Compression: Undefined
  Orientation: Undefined
  Properties:
    date:create: 2016-10-24T13:02:32+06:00
    date:modify: 2016-10-24T13:02:32+06:00
    signature: 1a7afe32d76cc7beccbc5a8d798344c7dac7fc4d5ebb5aa0d84ff46d8e7669c2
  Artifacts:
    verbose: true
  Tainted: False
  Filesize: 354KB
  Number pixels: 4.915M
  Pixels per second: 37.81MB
  User time: 0.130u
  Elapsed time: 0:01.129
  Version: ImageMagick 7.0.3-0 Q16 x86_64 2016-09-09 http://www.imagemagick.org

Image Link: https://s16.postimg.org/576u48hwl/Orientation5.jpg

Please let me know if there is any other information I should provide. Thank you.

User avatar
fmw42
Posts: 25016
Joined: 2007-07-02T17:14:51-07:00
Authentication code: 1152
Location: Sunnyvale, California, USA

Re: Unable to read Orientation exif information from webp

Post by fmw42 » 2016-10-24T09:51:24-07:00


saurabheights
Posts: 8
Joined: 2016-09-24T05:16:10-07:00
Authentication code: 1151

Re: Unable to read Orientation exif information from webp

Post by saurabheights » 2016-11-06T22:51:57-07:00

Hi,
Sorry, I was away for too long.

Thank you for the issue link.

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