Seek utility to show image data (two types)

  • Thread starter Thread starter Franklin
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Franklin

ONE

Is there a utility, ideally a freeware one, which would show me
technical data about an image file's properties.

For example: pixels, color levels, particular encoding options used,
number of 'pages', etc.


TWO

Some image formats seem able to contain metadata such as camera data
(f/stop, make, model, etc), date, description

Is there a universal reader for this sort of data?
 
Is there a utility, ideally a freeware one, which would show me
technical data about an image file's properties? For example: pixels,
color levels, particular encoding options used, number of 'pages',
etc.
Click to expand...

Er. There are a lot of image file formats. TIFF, JPEG, PNG, BMP, GIF,
PICT, and many others exist. If you could narrow the formats you want
to deal with down, I could make better recommendations, but you might
want to try ImageMagick's identify. "identify -verbose
haxored_by_pigs.jpg" here gives me a metric arseload of information,
including something that looks like a profile excreted by Adobe.
ImageMagick is free speech, http://imagemagick.org/ .
Some image formats seem able to contain metadata such as camera data
(f/stop, make, model, etc), date, description. Is there a universal
reader for this sort of data?
Click to expand...

If you mean the EXIF data that is stored in many JPEGs produced by
digital cameras, yes. ImageMagick can read and display that EXIF data
in human-readable format; "identify -verbose" works although you may
want to do something like:

identify -verbose wedding-001.jpg | grep -A50 "Image Description"

....since there's a lot of output from -verbose. Konqueror will also
display a subset of that EXIF data if its file-manager is set to display
icons and you hover the mouse over a JPEG with EXIF data.

TIFF doesn't store the same information, but you can always use the SGI
tiffutils (specifically tiffinfo) to view all the standard TIFF tags in
any TIFF. If the TIFFs you're interested in have nonstandard tags,
you're going to have to do some hacking since libtiff will not read
nonstandard tags unless you create your own functions to read those
tags. HTH anyway,
 
Franklin said:
ONE

Is there a utility, ideally a freeware one, which would show me
technical data about an image file's properties.

For example: pixels, color levels, particular encoding options used,
number of 'pages', etc.


TWO

Some image formats seem able to contain metadata such as camera data
(f/stop, make, model, etc), date, description

Is there a universal reader for this sort of data?
Click to expand...

Irfanview is about as universal as you can get.
It will open or view just about any current image format on the planet. It
will also save most of them.
http://www.irfanview.com

The Image Information will tell you all that irfanview can find in the image
file.
Irfanview is free.
 
Franklin said:
ONE

Is there a utility, ideally a freeware one, which would show me
technical data about an image file's properties.

For example: pixels, color levels, particular encoding options used,
number of 'pages', etc.
Click to expand...

NIH Image and ImageJ (also on the NIH website). NIH stands for National
Institute of Health. I don't have the link handy, though a Search should
find that easily enough (think it was a .gov site).
TWO

Some image formats seem able to contain metadata such as camera data
(f/stop, make, model, etc), date, description

Is there a universal reader for this sort of data?
Click to expand...

I think ImageJ would not read EXIF headers, though I think that NIH
Image (latest version) will read most. There may be some other free
viewer software, though without editing capability. Extensis make
several portfolio products of software at very low cost that will read
that data, and create archives of your image files.

Ciao!

Gordon Moat
A G Studio
<http://www.allgstudio.com>
 
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