* Monique et Bernard Weill [12-27-09 11:11]:

Hi,

I am working on Windows XP, GIMP 2.6.7. like this:

1- I scan an image in 300 dpi at his real size: A4 and obtain file in Jpeg and/or Tif. 2- I open the file in GIMP.
3- I select part of the image and copy (Ctrl + C) the selection in the Clipboard.

And now my problem: Past (Ctrl V) on:
- Gimp: the size of the copied selection is good (equal to the original size). - Microsoft program like Powerpoint or OO program like Draw or Inkscape: the size is around multiply by 3!

Without other change, I have only modified scan resolution and redo the full sequence: With 200dpi the copied selections are always good in size in GIMP and around 2 times the original size in the external programs. With 100 dpi the size of copied images seems good (equal to the original) in all programs!

Unfortunatly with 100 dpi my images are not usables and I have to be in 300 dpi to do crop, select and so on.

I may be completely off-base, but your monitor probably has a natural display resolution of 96-100 dpi so graphics at 100 dpi *appear* to be the same size and 300 dpi (3 times monitor resolution) appear 3 times larger.

Hope my English readabble and that you can help me.

No appologies necessary. I hope my explanation is correct and makes sense.

On 12/27/2009 10:09 AM, Monique et Bernard Weill wrote:

Hi,

I am working on Windows XP, GIMP 2.6.7. like this:

1- I scan an image in 300 dpi at his real size: A4 and obtain file in Jpeg and/or Tif. 2- I open the file in GIMP.
3- I select part of the image and copy (Ctrl + C) the selection in the Clipboard.

And now my problem: Past (Ctrl V) on:
- Gimp: the size of the copied selection is good (equal to the original size). - Microsoft program like Powerpoint or OO program like Draw or Inkscape: the size is around multiply by 3!

In GIMP, check to see what the zoom level is on the image.

On 12/27/2009 1:26 PM, Monique et Bernard Weill wrote:

Hi,
Sorry, but the zoom level don't modify the size of the image measured with the appropriate tools (in Gimp -uppercase +M- or in external programs).

No, but it does modify the apparent size. I've on many occasions, after scanning in something at 300dpi, thought the image was properly sized only to find the zoom at 67% or less. From what was described in the OP, it sounds as if he hasn't adjusted for zoom, so when he pastes he gets an image larger then expected.

I've copy/pasted images into and out of GIMP since 1.x (I forget the version number I started out with, but it's been several years now) and the problem he described sounds exactly like he's not taking into account zoom level when describing the size of the image in GIMP. GIMP automatically tries to fit the image into the editing window via lowering the zoom to less then 100%.

Also, he never indicates he measured the image. He only said he scanned in at 300dpi.

On Sun, 2009-12-27 at 17:09 +0100, Monique et Bernard Weill wrote:

I am working on Windows XP, GIMP 2.6.7. like this:

1- I scan an image in 300 dpi at his real size: A4 and obtain file in Jpeg and/or Tif. 2- I open the file in GIMP.
3- I select part of the image and copy (Ctrl + C) the selection in the Clipboard.

And now my problem: Past (Ctrl V) on:
- Gimp: the size of the copied selection is good (equal to the original size). - Microsoft program like Powerpoint or OO program like Draw or Inkscape: the size is around multiply by 3!

But that is expected. You are copying the pixels over the clipboard. This doesn't say anything about how these pixels are displayed in other applications. Most applications will look at the print-size meta-data of the image in order to determine at what size the image should be displayed. But you are not copying this meta-information when you copy and paste pixels between applications.

It should be fairly easy though to adjust the display size in the target application.

Sven

The Windows clipboard reserve even more horrors , as example strip away the transparency (alpha channel)

So may be a good idea save in gimp and then reopen from the external app instead then copy and paste

BUT from the gimp side will be nice a menu option as "Open With" or "Send to" to exchange images with other apps

I am working on Windows XP, GIMP 2.6.7. like this:

1- I scan an image in 300 dpi at his real size: A4 and

obtain file in Jpeg and/or Tif.

2- I open the file in GIMP.
3- I select part of the image and copy (Ctrl + C) the

selection in the Clipboard.

And now my problem:
Past (Ctrl V) on:
- Gimp: the size of the copied selection is good

(equal to the original size).

- Microsoft program like Powerpoint or OO program like

Draw or Inkscape: the size is around multiply by 3!

On 12/28/2009 7:01 PM, Alchemie foto\grafiche wrote:

The Windows clipboard reserve even more horrors , as example strip away the transparency (alpha channel)

So may be a good idea save in gimp and then reopen from the external app instead then copy and paste

BUT from the gimp side will be nice a menu option as "Open With" or "Send to" to exchange images with other apps

Am I the only one using GIMP who has no such problems when copy/pasting with the clipboard? Granted generally I do it between two images opened in the GIMP to begin with, but still. I've copy/pasted text layers, layers with an alpha channel, etc with no problem what-so-ever.

Actually that problem with the Windows clipboard (on XP ) stripping the alpha channel seems vanished (maybe some recent Windows update? )

And anyway is possible that was a issue only on XP not on Vista or 7

Am I the only one using GIMP who has no such problems when copy/pasting
with the clipboard? Granted generally I do it between two images opened
in the GIMP to begin with, but still. I've copy/pasted text layers,
layers with an alpha channel, etc with no problem what-so-ever.