How to handle a non-standard exif

Angus · 2007-03-24 01:04

First let me thank you for sharing your wonderful program. It is well written and just about perfect.

I have just successfully re-named over one thousand images using the exif-date meta tag. However it failed to rename about 100 images that had been geotagged with RoboGeo. The reason might be the extra line that RoboGeo inserts just before the DateTime entry.

Is there a simple workaround?

I've copied the relevant lines of the exif information below
..............................................................................................................
Make - Canon
Model - Canon PowerShot S1 IS
Orientation - Top left
XResolution - 180
YResolution - 180
ResolutionUnit - Inch
Software - RoboGEO v4.4.0
DateTime - 2006:09:22 13:24:59
YCbCrPositioning - Centered
ExifOffset - 196
ExposureTime - 1/640 seconds
FNumber - 4.50
ExifVersion - 0221
DateTimeOriginal - 2006:09:22 13:24:59
DateTimeDigitized - 2006:09:22 13:24:59
ComponentsConfiguration - YCbCr
CompressedBitsPerPixel - 5 (bits/pixel)
ShutterSpeedValue - 1/636 seconds
ApertureValue - F 4.51
ExposureBiasValue - 0.00
MaxApertureValue - F 2.80
MeteringMode - Center weighted average
Flash - Not fired, compulsory flash mode
FocalLength - 5.80 mm
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 2048
ExifImageHeight - 1536
InteroperabilityOffset - 2036
FocalPlaneXResolution - 9846.15
FocalPlaneYResolution - 9846.15
FocalPlaneResolutionUnit - Inch
SensingMethod - One-chip color area sensor
FileSource - DSC - Digital still camera
CustomRendered - Normal process
ExposureMode - Auto
White Balance - Auto
DigitalZoomRatio - 1.00 x
SceneCaptureType - Standard

GPS information: -
GPSVersionID - 2.2.0.0
GPSLatitudeRef - N
GPSLatitude - 52 54.04 0
GPSLongitudeRef - W
GPSLongitude - 2 51.06 0
GPSAltitudeRef - Sea level
GPSAltitude - 101.21 m
GPSTimeStamp - 12 24 59

Maker Note (Vendor): -
etc etc
................................................................................

Thanks
Angus

den4b · 2007-03-24 14:58

Hi Angus,

When you said "it failed to rename about 100 images" - did you mean it failed to extract the date? i.e. does the :EXIF_Date: meta tag returns an empty string for those files? Your RoboGEO might have messed up the exif header, and I'm not sure how to fix it... Can you send me one of those photos?

Also, what program did you use to extract that exif information? Was it also RoboGEO?

Angus · 2007-03-24 16:01

When you said "it failed to rename about 100 images" - did you mean it failed to extract the date? i.e. does the :EXIF_Date: meta tag returns an empty string for those files?

Yes.

Also, what program did you use to extract that exif information? Was it also RoboGEO?

Irfanview

Can you send me one of those photos?

Yes, here's an example
http://members.shaw.ca/picgroup/IMG_7438.jpg

Thanks

Angus · 2007-03-25 01:45

My mistake, there is NO PROBLEM WITH RENAMER or with RoboGeo for that matter.

The problem was my unfamiliarity with the program and the way it handles duplicate files.

It just happened that the first dozen of my non-renamed files had all been geotagged and I jumped to the conclusion that RoboGeo was the culprit, when the reality was that they were also duplicates of files that had already been successfully renamed.

Another assumption on my part was that duplicates would have been renamed with numerical suffixes "2006 Dec 09 12.46.19(1).JPG", "2006 Dec 09 12.46.19(2).JPG" . . . , which another program called DIM does by default.

I must check whether Renamer has that option somewhere. It would be very useful, especially when I use automatic image bracketing on my camera and the 3 resulting image files have identical DateTime tags.

Sorry again for the confusion.

Angus

den4b · 2007-03-25 11:13

I was getting confused there for a moment, because I did try your photo, and as you know by now - renamer did extract the correct exif date

Check out the PascalScript rule, in the preloaded list of scripts, there is one called "Serialize duplicates". Load it as your last rule in your renaming operation, and you'll see what it does. It will append (2), (3), etc - to duplicated new names.

P.S. Make sure you use latest available version!

den4b Forum

#1 2007-03-24 01:04

How to handle a non-standard exif

#2 2007-03-24 14:58

Re: How to handle a non-standard exif

#3 2007-03-24 16:01

Re: How to handle a non-standard exif

#4 2007-03-25 01:45

Re: How to handle a non-standard exif

#5 2007-03-25 11:13

Re: How to handle a non-standard exif

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