Search found 11 matches

by wumpus
2017-09-12T15:20:39-07:00
Forum: Bugs
Topic: Possible bug: Not copying over all EXIF tags curing TIFF to JPEG conversion
Replies: 11
Views: 11632

Re: Possible bug: Not copying over all EXIF tags curing TIFF to JPEG conversion

Cool. As long as it's been identified. At least I'm not crazy.

I'll use nconvert for now as IrfanView has an issue on how it passes a couple of the other tags through (StripOffsets & StripByteCounts if I remember correctly) and I'll keep checking new ImageMagick versions changelogs.

Thanks, eh?
by wumpus
2017-09-12T14:40:21-07:00
Forum: Bugs
Topic: Possible bug: Not copying over all EXIF tags curing TIFF to JPEG conversion
Replies: 11
Views: 11632

Re: Possible bug: Not copying over all EXIF tags curing TIFF to JPEG conversion

That was a dumb comparison. Sorry. I was just surprised. nconvert from XnView passes the tags through the conversion, as does IrfanView.
by wumpus
2017-09-12T14:08:48-07:00
Forum: Bugs
Topic: Possible bug: Not copying over all EXIF tags curing TIFF to JPEG conversion
Replies: 11
Views: 11632

Re: Possible bug: Not copying over all EXIF tags curing TIFF to JPEG conversion

You're not seeing any exif data... even from the original file? If I upload the exiftool-modified JPEG file to Google Photos, it seems to read the EXIF data fine (as the date is shown correctly). Very odd.
by wumpus
2017-09-12T11:53:52-07:00
Forum: Bugs
Topic: Possible bug: Not copying over all EXIF tags curing TIFF to JPEG conversion
Replies: 11
Views: 11632

Re: Possible bug: Not copying over all EXIF tags curing TIFF to JPEG conversion

dlemstra wrote:
2017-09-12T11:47:34-07:00
Can you add a link to your test image so we can reproduce your issue?
oops. didn't see this. I added it to the top of my post just now. Sorry.
by wumpus
2017-09-11T23:17:42-07:00
Forum: Users
Topic: convert doesn't like some EXIF tags
Replies: 5
Views: 4292

Re: convert doesn't like some EXIF tags

by wumpus
2017-09-11T23:15:15-07:00
Forum: Bugs
Topic: Possible bug: Not copying over all EXIF tags curing TIFF to JPEG conversion
Replies: 11
Views: 11632

Possible bug: Not copying over all EXIF tags curing TIFF to JPEG conversion

I'm adding some standard EXIF tags, using ExifTool, to the TIFF files generated by my scanner tools. The ImageMagick convert tool is not copying the tags over when converting from TIFF to JPEG, namely: DateTime (ModifyDate to exiftool) DateTimeDigitized (CreateDate to exiftool) DateTimeOriginal I ha...
by wumpus
2017-09-11T23:05:37-07:00
Forum: Users
Topic: convert doesn't like some EXIF tags
Replies: 5
Views: 4292

Re: convert doesn't like some EXIF tags

It seems the tag omission during the conversion has nothing to do with the unknown tags. If I don't put the unknown tags in the file, convert still is not copying over some EXIF tags, namely: DateTime (ModifyDate to exiftool) DateTimeDigitized (CreateDate to exiftool) DateTimeOriginal I have a sampl...
by wumpus
2017-09-11T20:56:39-07:00
Forum: Users
Topic: convert doesn't like some EXIF tags
Replies: 5
Views: 4292

Re: convert doesn't like some EXIF tags

Like this?

Code: Select all

C:\TEMP\test>convert -quiet IMG_20170911_0001.tif -quality 95 IMG_20170911_0001.jpg

C:\TEMP\test>
But it still doesn't write the (unknown?) tags to the resultant JPEG file it created.
by wumpus
2017-09-11T19:35:24-07:00
Forum: Users
Topic: convert doesn't like some EXIF tags
Replies: 5
Views: 4292

convert doesn't like some EXIF tags

Why would convert care? It's complaining about some (newer) EXIF tags: OffsetTime, OffsetTimeOriginal and OffsetTimeDigitized. It complains and strips them out when converting from TIFF to JPEG. C:\TEMP\test>convert -quality 95 IMG_20170911_0002.tif IMG_20170911_0002.jpg convert: Unknown field with ...
by wumpus
2016-04-29T17:16:36-07:00
Forum: Users
Topic: Setting JFIF APP0 marker segment values
Replies: 1
Views: 1945

Setting JFIF APP0 marker segment values

Is there a way to use convert CLI to set JFIF APP0 marker segment values? I want to set: Density(BYTE[1]): 01 (inches) Xdensity(BYTE[2]/SHORT): 600 Ydensity(BYTE[2]/SHORT): 600 I'd really like to do it as a batch to all *.jpg files in the directory. I've googled and searched the ImageMagick pages bu...