Page 1 of 2
Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-16T09:10:33-07:00
by The Guy from CGN
How can I preserve the EXIF while converting from TIF to TIF and TIF to JPG?
I tried to extract the EXIF into a separate file and add it while final conversation
Code: Select all
convert input.tif exif:input.exif
mogrify -set profile exif:input.exif pagoda_sm.tif
but I get this message:
convert: no APP1 data is available `input.exif' @ error/meta.c/WriteMETAImage/2422.
Even copy'n'paste into a search engine was not helpful for this error message. What is APP1?
Is there a possibility to keep the EXIF? If yes, what is the command?
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-16T11:50:55-07:00
by fmw42
I was under the impression that it would be copied on an simple convert. Can you post an example TIF? Did you try?
or
mogrify is old and less functional that the magick command. It replaces convert when using IM 7.
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-17T00:03:11-07:00
by The Guy from CGN
I have uploaded an example TIF:
https://my.hidrive.com/lnk/Cg4k1owW
I tried magick as well as convert. In both cases the EXIF will be removed. I also tried:
Code: Select all
magick input.tif -define tiff:exif-properties=true output.tif
but the EXIF will be still removed.
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-17T08:28:51-07:00
by fmw42
Your file does not list any EXIF properties.
Verbose information.
Code: Select all
Image: input.tif
Format: TIFF (Tagged Image File Format)
Mime type: image/tiff
Class: DirectClass
Geometry: 738x766+0+0
Resolution: 300x300
Print size: 2.46x2.55333
Units: PixelsPerInch
Colorspace: sRGB
Type: TrueColor
Endianess: LSB
Depth: 8-bit
Channel depth:
red: 8-bit
green: 8-bit
blue: 8-bit
Channel statistics:
Pixels: 565308
Red:
min: 0 (0)
max: 222 (0.870588)
mean: 64.0168 (0.251046)
standard deviation: 28.7652 (0.112805)
kurtosis: 1.44355
skewness: 1.09352
entropy: 0.864703
Green:
min: 6 (0.0235294)
max: 195 (0.764706)
mean: 73.1449 (0.286843)
standard deviation: 22.227 (0.0871648)
kurtosis: 0.775626
skewness: 0.495986
entropy: 0.857878
Blue:
min: 0 (0)
max: 97 (0.380392)
mean: 5.36054 (0.0210217)
standard deviation: 7.9438 (0.0311521)
kurtosis: 5.26293
skewness: 2.05755
entropy: 0.556688
Image statistics:
Overall:
min: 0 (0)
max: 222 (0.870588)
mean: 47.5074 (0.186304)
standard deviation: 19.6453 (0.0770406)
kurtosis: -0.537545
skewness: 0.330918
entropy: 0.759756
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: srgb(223,223,223)
Matte color: grey74
Transparent color: black
Interlace: None
Intensity: Undefined
Compose: Over
Page geometry: 738x766+0+0
Dispose: Undefined
Iterations: 0
Compression: None
Orientation: TopLeft
Properties:
date:create: 2019-07-17T15:27:12+00:00
date:modify: 2019-07-17T15:27:12+00:00
icc:copyright: Copyright (c) 1998 Hewlett-Packard Company
icc:description: sRGB IEC61966-2.1
icc:manufacturer: IEC http://www.iec.ch
icc:model: IEC 61966-2.1 Default RGB colour space - sRGB
signature: a57e1e05f38b0e6bc4489b8efea8a6d656d6730e7fd8ac4940c96c49f20ec92d
tiff:alpha: unspecified
tiff:artist: Rene Toepfer
tiff:copyright: Copyright 2019 Rene Toepfer - www.rene-toepfer.de - Alle Rechte vorbehalten/All rights reserved
tiff:endian: lsb
tiff:photometric: RGB
tiff:rows-per-strip: 3
Profiles:
Profile-8bim: 20176 bytes
Profile-icc: 3144 bytes
Profile-iptc: 172 bytes
City[1,90]: 0x00000000: 254700 -%
unknown[2,0]:
Byline[2,80]: Rene Toepfer
Byline Title[2,85]: Dipl.-Ing. (FH), Fotograf, Grafi
Copyright String[2,116]: Copyright 2019 Rene Toepfer - www.rene-toepfer.de - Alle Rechte vorbehalten/All rights reserved
Profile-xmp: 6010 bytes
Artifacts:
filename: input.tif
verbose: true
Tainted: False
Filesize: 1.6459MiB
Number pixels: 565308
Pixels per second: 30.0378MB
User time: 0.000u
Elapsed time: 0:01.018
Version: ImageMagick 6.9.10-53 Q16 x86_64 2019-07-06 https://imagemagick.org
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-17T08:47:17-07:00
by The Guy from CGN
IrfanView shows me as EXIF what also is shown by identify:
Code: Select all
tiff:artist: Rene Toepfer
tiff:copyright: Copyright 2019 Rene Toepfer - www.rene-toepfer.de - Alle Rechte vorbehalten/All rights reserved
This what I want to have also in the output.tif/output.jpg.
By using convert or magick these data will be removed.
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-17T08:55:09-07:00
by fmw42
That is not EXIF data. It is TIFF specific information.
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-17T09:25:33-07:00
by The Guy from CGN
Why shows it IrfanView as EXIF?
But however, how can I get these information into the final JPG as EXIF?
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-17T09:29:03-07:00
by fmw42
Irfanview may be calling everything EXIF. I do not use it, so cannot say for sure what is properly EXIF data or not. Imagemagick will not write or modify EXIF. It only reads it. You can use exiftool to change or add EXIF data. See
https://www.sno.phy.queensu.ca/~phil/exiftool/
What information do you need to preserve?
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-17T09:32:51-07:00
by The Guy from CGN
Even it is not the correct forum: Do the exiftool re-write a JPG/TIFF or will it just add the data?
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-17T09:34:38-07:00
by fmw42
It you want the "artist" and copyright. Then add those to the comments section of the file using Imagemagick. Then it would be copies.
See -comment or -set comment in the docs.
https://imagemagick.org/script/command- ... hp#comment
convert image.tif -set comment "artist: ...." image.tif
I am not sure if this is done without reading and writing the image data.
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-17T09:35:09-07:00
by fmw42
The Guy from CGN wrote: ↑2019-07-17T09:32:51-07:00
Even it is not the correct forum: Do the exiftool re-write a JPG/TIFF or will it just add the data?
I think it just adds the data. But you will have to read their docs to be sure.
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-17T09:48:21-07:00
by fmw42
I have to admit, I am not sure I understand why the tiff: fields that contain artist and copyright are not copies from one tiff file to another with a simple convert. Perhaps it is because these are less used fields and Imagemagick only copies a few tiff fields that are always reported.
I note that exiftool does see those fields in your input image.
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-18T01:19:53-07:00
by The Guy from CGN
I use EXIFTOOL meanwhile. I created an XMP template containing EXIF and IPTC. Prior converting the TIFF into JPG I run EXIFTOOL. While conversation from TIFF to JPG these data will be kept.
These are the codes (I run them automatically as a batch file afterwards Capture1 has convertered my RAW into TIFF):
EXIFTOOL
Code: Select all
exiftool -tagsfromfile "%LOCALAPPDATA%\CaptureOne\_capture1-skripte\exif\exif.xmp" -all:all -overwrite_original %1
Code: Select all
magick %1[0] -quality 95 -sampling-factor 4:2:2 -set filename:ausgabe "%%d\\%%t" %%[filename:ausgabe].jpg
The EXIF and IPTC data will not be shown at Irfanview but with EXIFTOOL and with Photoshop. Therefore it seems to me that Irfanview has a bug.
Thanks for your support! From my point of view this topic is closed.
P.S.: I considered your comment that CONVERT, MOGRIFY etc are only for compatibility reasons and they were replaced by MAGICK.
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-07-18T08:54:56-07:00
by fmw42
Thanks for reporting your success and how to do that with exiftool. It will be helpful to others.
Convert is replaced by magick in IM 7. Magick has new functionality. Mogrify in IM 7 needs to be called as magick mogrify and just uses the old IM 6 mogrify. Nothing new in it. Also mogrify is more limited than convert/magick. So for processing one image, magick is better.
Re: Preserve EXIF while conversation from TIF to TIF/TIF to JPG
Posted: 2019-08-05T06:59:55-07:00
by 246246
The Guy from CGN wrote: ↑2019-07-17T09:25:33-07:00
Why shows it IrfanView as EXIF?
But however, how can I get these information into the final JPG as EXIF?
Accroding to the spec of Exif 2.3
http://www.cipa.jp/std/documents/e/DC-008-2012_E.pdf
4.6.4 TIFF Rev. 6.0 Attribute InformationTable 4 lists the attribute information used in Exif, including the attributes given as mandatory in Baseline TIFF Rev. 6.0 RGB Full Color Images and TIFF Rev. 6.0 Extensions YCbCr Images, as well as the optional TIFF tags used by DSC and other systems. The contents are explained below.
it seems they considered it as a part of Exif. So I suppose exiftool or exiv2 treat them as a Exif.