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From: Harald Oehlmann on 16 Jun 2010 03:19
An image is created using "image create photo".
This may be saved using the method "write"
"image photo" has the capability to save an image into a file.

Is it possible to set the resolution setting (often called dpi),
present in many image file formats ?

An image always has Width and Height in Pixels.
Using the Resolution (example: 96dpi) , one may calculate the size in
inches or mm.

Does the TkImg extension provide this possibility ?

Thank you in advance for any reply,
Harald
From: Kroc on 16 Jun 2010 16:26
On 16 juin, 09:19, Harald Oehlmann <wortka...(a)yahoo.de> wrote:
> Is it possible to set the resolution setting (often called dpi),
> present in many image file formats ?

Hi Harald,

I think the pure Tcl TIFF package (http://wiki.tcl.tk/9245) allows
this in raw2tiff and photo2tiff procs.

--
David Zolli
From: Harald Oehlmann on 17 Jun 2010 08:56
On 16 Jun., 22:26, Kroc <k...(a)kroc.tk> wrote:
> I think the pure Tcl TIFF package (http://wiki.tcl.tk/9245) allows
> this in raw2tiff and photo2tiff procs.

Yes, indeed, thank you,
Harald
From: Kroc on 17 Jun 2010 09:08
You're welcome Harald,

If you need something for JPEG, you might also have a look at EXIF and
Jpeg tcllib packages and upgrade them to add possibility to edit/save
x-Resolution, y-Resolution and Resolution Unit tags.

--
David Zolli
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