Option To Separate Photos with Missing or Invalid EXIF Data
dbxt opened this issue · comments
Right now it appears that images with missing or invalid EXIF dates get defaulted to the current date. It would be handy to be able to dump these photos into an invalid_data photo so they can be addressed.
If I get some time over the next few weeks I'll try to throw something together, but I figured I'd throw it out there to see if one of the more active devs wants to take a crack at it @nekopep.
Can you send me privately such a photos with wrong EXIF data??
I find it usefull to have such options.
Le 8 oct. 2015 à 19:20, David Wayne Baxter notifications@github.com a écrit :
Right now it appears that images with missing or invalid EXIF dates get defaulted to the current date. It would be handy to be able to dump these photos into an invalid_data photo so they can be addressed.
If I get some time over the next few weeks I'll try to throw something together, but I figured I'd throw it out there to see if one of the more active devs wants to take a crack at it @nekopep https://github.com/nekopep.
—
Reply to this email directly or view it on GitHub #61.
Interestingly enough, I examined one of the images in question (my github profile photo that's over a year old) and the created date appears to be from the last time time it was sorted with this script. Whatever modified the dates, the create date is now more current than the modified date.
date:create: 2015-10-08T08:51:55-07:00
date:modify: 2015-10-04T18:03:14-07:00
I haven't been through all of the code, but is this script updating the EXIF data or is this just a function of moving the files around? In either case, something seems suspect. Here's the full dump of identify -verbose 2015/10-Oct/2015_10_04_110314.jpeg
Image: 2015/10-Oct/2015_10_04_110314.jpeg
Format: JPEG (Joint Photographic Experts Group JFIF format)
Mime type: image/jpeg
Class: DirectClass
Geometry: 200x200+0+0
Resolution: 72x72
Print size: 2.77778x2.77778
Units: PixelsPerInch
Type: TrueColor
Endianess: Undefined
Colorspace: sRGB
Depth: 8-bit
Channel depth:
red: 8-bit
green: 8-bit
blue: 8-bit
Channel statistics:
Pixels: 40000
Red:
min: 0 (0)
max: 255 (1)
mean: 111.598 (0.437641)
standard deviation: 62.4621 (0.244949)
kurtosis: -0.62735
skewness: 0.514409
entropy: 0.965428
Green:
min: 0 (0)
max: 255 (1)
mean: 113.531 (0.445221)
standard deviation: 59.0621 (0.231616)
kurtosis: -0.493571
skewness: 0.343778
entropy: 0.962681
Blue:
min: 0 (0)
max: 255 (1)
mean: 111.269 (0.43635)
standard deviation: 63.9293 (0.250703)
kurtosis: -1.20507
skewness: 0.110425
entropy: 0.954346
Image statistics:
Overall:
min: 0 (0)
max: 255 (1)
mean: 112.133 (0.439737)
standard deviation: 61.8514 (0.242555)
kurtosis: -0.797759
skewness: 0.313905
entropy: 0.960818
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: JPEG
Intensity: Undefined
Compose: Over
Page geometry: 200x200+0+0
Dispose: Undefined
Iterations: 0
Compression: JPEG
Quality: 90
Orientation: Undefined
Properties:
date:create: 2015-10-08T08:51:55-07:00
date:modify: 2015-10-04T18:03:14-07:00
jpeg:colorspace: 2
jpeg:sampling-factor: 1x1,1x1,1x1
signature: 7bc2f842b239baab0c0f055c7d514122810d41d266196054b050af1b58afed50
Artifacts:
filename: 2015/10-Oct/2015_10_04_110314.jpeg
verbose: true
Tainted: False
Filesize: 19.9KB
Number pixels: 40K
Pixels per second: 0B
User time: 0.000u
Elapsed time: 0:01.000
Version: ImageMagick 6.9.2-0 Q16 x86_64 2015-08-18 http://www.imagemagick.org
Since the images in question have all been updated with current dates, I'll keep looking to find something with missing date.
The script does not modify EXIF data. It may however change a modified date but that's just a function of the file system. Depending on what platform you are on (Windows, OS X, Linux) creation date means different things. Personally I add the flag: "--ignore-groups File" so that if valid EXIF data is not provided then the photos aren't moved. That functionality already exists. Nothing gets defaulted to the current date. It will fallback on file system dates if there is no EXIF data. Those could be the current date if you copied files around.
Excellent, that's exactly the information I needed. From now on I'll use --ignore-groups File and deal with the files left over after the process is complete.
Thanks for the quick response!
Ok, great. There are more details in this section of the README and links to all the filtering options you can use.
That's the most polite version of "RTFM" I've ever seen. lol
Thanks for the hard work!