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Export and Print vs Save then Print ( Bug ? )

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Export and Print vs Save then Print ( Bug ? ) sam ende 28 Jun 19:04
r02010500-1039-3C6DCFA8E7D7... 07 Oct 20:17
  Export and Print vs Save then Print ( Bug ? ) michael chang 28 Jun 18:49
   Export and Print vs Save then Print ( Bug ? ) Akkana Peck 28 Jun 20:27
    Export and Print vs Save then Print ( Bug ? ) sam ende 28 Jun 21:04
    Export and Print vs Save then Print ( Bug ? ) michael chang 30 Jun 15:10
michael chang
2005-06-28 18:49:28 UTC (almost 19 years ago)

Export and Print vs Save then Print ( Bug ? )

On 6/28/05, Richard Nagle wrote:

Here one, for you Gimp Guru¹s....

When looking at a gimp file .xcf, and want to print out that file (photo) I used export.. gimp wanted me to flatten the layers, I did not want to do that...

The GIMP's print module will only print the current layer by default. When you export, it isn't supposed to change the original image, if memory serves me right. I could be wrong there, though. Why not just save the file twice, flatten the second, and print it?

It's kind of weird, maybe this is a user-interface improvement that could be changed. That said, there are alot of GIMP users who probably would only want to print the current layer, as opposed to the flattened image (which would be used by consumers). *shrugs*

I don't think that changing something onscreen (e.g. onscreen gamma correction in the monitor) changes the way it comes out of the printer. Doesn't your printer driver have some sort of gamma correction system? (CUPS and Windows drivers have something that resembles this, but I've never used it.)

Does this help solve your problem?

sam ende
2005-06-28 19:04:21 UTC (almost 19 years ago)

Export and Print vs Save then Print ( Bug ? )

On Tuesday 28 June 2005 14:19, Richard Nagle wrote:

Printed out 18 photo¹s, using grayscale (not color) and not black & white, its like the certain parts are good, and certain parts are still too dark, lost of detail compare to the grayscale image (photo) on the computer screen. which is perfect...( made adjustments under printer option... )

possibly a really stupid question but what dpi did you print at ? i have found that 660x300 makes foir a far better print quality than 300x300

sammi

Akkana Peck
2005-06-28 20:27:04 UTC (almost 19 years ago)

Export and Print vs Save then Print ( Bug ? )

Richard Nagle writes:

When looking at a gimp file .xcf, and want to print out that file (photo) I used export.. gimp wanted me to flatten the layers, I did not want to do that...

Some of what you and Michael Chang describe seems foreign to me, which made me wonder what platform you're on -- I think there are platform differences between the printing plug-ins.

On Linux, printing is really straightforward. I'm in an XCF and I do File->Print. I get a dialog saying that GIMP can't handle layers and offering to export, and I say yes. That's just for the printer; it doesn't flatten the layers in the current image or otherwise change it (much like how saving to jpeg will flatten layers in the saved file, but the file you're editing still has all the layers intact).

When I agree to the Export, I get the gimp-print dialog which has all the printer info, and a tab for Image/Output Settings where I can select grayscale (since you mentioned wanting that) or click Adjust Output to get lots of sliders for adjusting brightness, etc.

Should I just save the image in .jpg format then print normal?

Saving in JPEG loses a little bit of information each time you save. At least use a non-lossy format like PNG. I'm not sure what "print normal" means.

Still compare to the screen image, the photo is off, from 25 - 40 %

$64.00 question, how to fix it. ( what you see is what you get. )

Sometimes it can take a lot of fiddling, and unfortunately a lot of sample prints, to get a print to come out with the same brightness balance you see on the screen. If you "Save Settings" from the gimp-print Adjust Output dialog, the settings are remembered (or at least they used to be), so once you find the mapping from your monitor to your printer, you can probably use that with minimal changes from then on.

I think having "color profiles" for your screen and your printer will eventually be able to help with this (and I believe that's being actively developed in GIMP), but I suspect that setting up the color profiles in the first place will still be a time consuming task. Maybe we'll be able to use pre-built profiles for common printers and monitors. But I'm slightly dubious: I used to have two monitors of the same model, which displayed colors quite differently, perhaps due to age; and color inkjet printers vary depending on the kind of paper you use.

If you need even more adjustment than that -- e.g. adjust the bright areas but leave the darks unchanged -- you might have to use something like the Curves tool with saved curves. This unfortunately *would* mean you'd need to flatten the image, in order to apply the curve to all layers. But you don't need to save the image as flattened; you could edit the XCF, flatten, apply the curve, print, then Revert it from the saved file. (Just be careful not to save the file accidentally while it's flattened. But if you do that, you can always Undo the flattening, then Save again ...)

michael chang writes:

The GIMP's print module will only print the current layer by default.

This must be a platform difference, and a different print plug-in from the Linux gimp-print one I'm using. GIMP prints all layers of an XCF for me.

...Akkana

sam ende
2005-06-28 21:04:15 UTC (almost 19 years ago)

Export and Print vs Save then Print ( Bug ? )

On Tuesday 28 June 2005 19:27, Akkana Peck wrote:

When I agree to the Export, I get the gimp-print dialog which has all the printer info, and a tab for Image/Output Settings where I can select grayscale (since you mentioned wanting that) or click Adjust Output to get lots of sliders for adjusting brightness, etc.

oh crikey, i've just told him one can't make those adjustments, simply because i've never clicked that tab :) thanks for that :)

sammi

michael chang
2005-06-30 15:10:41 UTC (almost 19 years ago)

Export and Print vs Save then Print ( Bug ? )

On 6/28/05, Akkana Peck wrote:

Richard Nagle writes:
Some of what you and Michael Chang describe seems foreign to me, which made me wonder what platform you're on -- I think there are platform differences between the printing plug-ins.

I'm sorry if I confused you. I have a dual-boot Linux and Windows system. The last thing I printed, however, was on a recent build of The GIMP 2.x for Windows. Although that shouldn't make too much of a difference - otherwise, The GIMP programmers have something they could consider a bug (or feature) here (lack of consistancy between Win/Lin versions of the GIMP to each other, as opposed to consistancy between Win GIMP and Windows Apps vs Lin Gimp and Lin Apps).

On Linux, printing is really straightforward. I'm in an XCF and I do File->Print. I get a dialog saying that GIMP can't handle layers and offering to export, and I say yes. That's just for the printer; it doesn't flatten the layers in the current image or otherwise change it (much like how saving to jpeg will flatten layers in the saved file, but the file you're editing still has all the layers intact).

What version of The GIMP?

Should I just save the image in .jpg format then print normal?

=.=" Why don't you just flatten the image as an XCF? Right click on the image, click "Image", then click "Flatten Image". Then use "Save As". Just the same as your "saving as a .jpg".

Still compare to the screen image, the photo is off, from 25 - 40 %

$64.00 question, how to fix it. ( what you see is what you get. )

Didn't your mother ever tell you that 99% of the time, the screen will never match the printer 100% hue for hue? If you look at it from a scientific perspective, it makes perfect sence, considering colours are mixed in completely different ways (Your printer uses CMYK, [cyan, magenta, yellow, black] whereas your screen uses RGB [red, green, blue].) There's no easy way. You just have to print the same picture out ten hundred times, and tweak both settings until you get it right. Good luck. You'll need it.

michael chang writes:

The GIMP's print module will only print the current layer by default.

This must be a platform difference, and a different print plug-in from the Linux gimp-print one I'm using. GIMP prints all layers of an XCF for me.

I dunno. One of my classmates was bugged because the Windows build only printed out the current layer. He had to ask me for help, even though he claims he knows more about Linux and computing than me. It was a recent build, too.

That said, I think Linux *does* print out all the layers. Does someone want to ask Gimp-developers why this is an inconsistancy (after we've verified it)?