Nowadays the tips sent are very nice.
Keep it up.
-Girish
On Tue, Jul 13, 2010 at 2:32 AM, Tha.Suresh <jemenisuresh@xxxxxxxxx> wrote:
View Image File Metadata From the Command Line
Did you know you can access all the information store in a JPG/PNG/GIF
file from the command line? Install the ImageMagick package and do
this:
identify -verbose image_file.jpg
The output will be something llike this:
arulalan@arul-desktop:~/
Desktop$ identify -verbose thasu.jpg
Image: thasu.jpg
?Format: JPEG (Joint Photographic Experts Group JFIF format)
?Class: DirectClass
?Geometry: 800x600+0+0
?Resolution: 72x72
?Print size: 11.1111x8.33333
?Units: Undefined
?Type: TrueColor
?Endianess: Undefined
?Colorspace: RGB
?Depth: 8-bit
?Channel depth:
? ?red: 8-bit
? ?green: 8-bit
? ?blue: 8-bit
?Channel statistics:
? ?red:
? ? ?min: 0 (0)
? ? ?max: 255 (1)
? ? ?mean: 40.7125 (0.159657)
? ? ?standard deviation: 73.2441 (0.287232)
? ? ?kurtosis: 0.609629
? ? ?skewness: 1.53781
? ?green:
? ? ?min: 0 (0)
? ? ?max: 255 (1)
? ? ?mean: 52.529 (0.205996)
? ? ?standard deviation: 91.3897 (0.358391)
? ? ?kurtosis: 0.455854
? ? ?skewness: 1.48962
? ?blue:
? ? ?min: 0 (0)
? ? ?max: 255 (1)
? ? ?mean: 51.1838 (0.200721)
? ? ?standard deviation: 89.757 (0.351988)
? ? ?kurtosis: 0.527622
? ? ?skewness: 1.51096
?Image statistics:
? ?Overall:
? ? ?min: 0 (0)
? ? ?max: 255 (1)
? ? ?mean: 36.1063 (0.141593)
? ? ?standard deviation: 76.8034 (0.30119)
? ? ?kurtosis: 2.40766
? ? ?skewness: 2.01127
?Rendering intent: Undefined
?Interlace: None
?Background color: white
?Border color: rgb(223,223,223)
?Matte color: grey74
?Transparent color: black
?Compose: Over
?Page geometry: 800x600+0+0
?Dispose: Undefined
?Iterations: 0
?Compression: JPEG
?Orientation: Undefined
?Properties:
? ?date:create: 2010-07-11T19:50:46+05:00
? ?date:modify: 2010-05-20T09:39:56+05:00
? ?jpeg:colorspace: 2
? ?jpeg:sampling-factor: 2x2,1x1,1x1
? ?signature: e794b1f09975d276aed3b92e5d45511e3e08ced69b1f8f1151eab18556679bda
?Artifacts:
? ?verbose: true
?Tainted: False
?Filesize: 97.8KiB
?Number pixels: 469KiB
?Pixels per second: 7.629MiB
?User time: 0.030u
?Elapsed time: 0:01.060
?Version: ImageMagick 6.5.7-8 2009-11-26 Q16 http://www.imagemagick.org
You can use this to extract specific fields from image files and make
scripts that sort your images according to quality, background color
or image size.
--
Regards,
Tha.Suresh
Kanchi Linux User Group Rocks !!!!
http://kanchilug.wordpress.com
My experiences with Linux are here,
http://thasulinux.wordpress.com
_______________________________________________
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc