Welcome, Guest
You have to register before you can post on our site.

Username
  

Password
  





Search Forums

(Advanced Search)

Forum Statistics
» Members: 4,782
» Latest member: MichaelDak
» Forum threads: 7,595
» Forum posts: 41,398

Full Statistics

Latest Threads
Is there any version wher...
Forum: Older Gimp versions (2.8, 2.6....)
Last Post: rich2005
4 hours ago
» Replies: 1
» Views: 221
How do I uninstall GIMP 3...
Forum: Linux and other Unixen
Last Post: Ofnuts
5 hours ago
» Replies: 1
» Views: 79
AI Gimp Plugins
Forum: Watercooler
Last Post: merlilderman
Yesterday, 04:16 PM
» Replies: 21
» Views: 68,249
How to make a watermark o...
Forum: General questions
Last Post: kyolim
09-13-2025, 10:05 PM
» Replies: 5
» Views: 14,187
Linux command that does e...
Forum: Other graphics software
Last Post: rich2005
09-13-2025, 06:06 PM
» Replies: 1
» Views: 482
reliable Gimp 2.10.38 dow...
Forum: Older Gimp versions (2.8, 2.6....)
Last Post: denzjos
09-13-2025, 05:20 PM
» Replies: 2
» Views: 388
Batch Color Saturation
Forum: Extending the GIMP
Last Post: rich2005
09-13-2025, 07:53 AM
» Replies: 15
» Views: 12,075
Photo play-time
Forum: Gallery
Last Post: Ofnuts
09-13-2025, 07:32 AM
» Replies: 24
» Views: 21,906
BIMP plugin for GIMP 3.10
Forum: Extending the GIMP
Last Post: firefly
09-12-2025, 11:53 PM
» Replies: 2
» Views: 740
pl_stroke_arrows GIMP 3.0...
Forum: Extending the GIMP
Last Post: Scallact
09-12-2025, 04:03 PM
» Replies: 0
» Views: 389

 
  Recommended workflow to retain maximum quality of an image for printing
Posted by: Muzician - 12-19-2022, 12:06 AM - Forum: General questions - Replies (9)

Starting with a .jpg taken by a cousin with an iPhone of a painting done by a relative. 

Properties of the original .jpg I was sent per Gimp are: 

42" x 56" 
72 ppi
3.7 mb
RGB

It's a pic in sharp focus of the painting in a frame. The plan is to crop out just the painting, straighten it and bring it down to the original size of 23.5" x 29.25" and have it printed with some border around it for framing.

What do you recommend as the optimal workflow to go from the original to a format to have a print made of it and what method of printing do you recommend? Office Depot does prints that size as posters but they use a variety of inkjet printer and I wonder if there's something better that an actual print shop might use. The goal is to retain as much of the sharpness and detail as possible.

What DPI should I use for best results? I gather most places like .pdf as a file to print from? Is there a particular stock you recommend?

Thanks!

Print this item

  Tip of the day
Posted by: ijeniik - 12-18-2022, 05:45 PM - Forum: General questions - Replies (2)

Hello people
it is possible to show Tip of the day after each start of gimp? Huh

Print this item

  The "look" of gradients
Posted by: Ofnuts - 12-18-2022, 10:09 AM - Forum: Tutorials and tips - Replies (4)

Out of curiosity, I made a graph to see the effect of the "blending function" in a gradient, and how it behaves if the midpoint is changed.

   

The "50" gradients have the default midpoint position, and the "75" one have the midpoint dragged to 75% of the range.

To replicate, adapt and run this code in the Python console, and copy/paste the result to a CSV that you feed to your favorite spreadsheet application.

Code:
def valueAt(layer,x,y):
    _,rgb=pdb.gimp_drawable_get_pixel(layer,x,y)
    return sum(rgb[:3])/3.

def dumpLayer(layer):
    y=layer.height/2
    pts=['%.1f' % valueAt(layer,x,y) for x in range(layer.width)]
    print '"%s",%s' % (layer.name, ','.join(pts))

def dumpImage(image):
    for layer in [l for l in image.layers if l.visible]:
        dumpLayer(layer)
        

image=gimp.image_list()[0]
dumpImage(image)

Source XCF also attached.

Edit: some code updates (works with alpha channel, and dumps only visible layers)



Attached Files
.xcf   Gradients.xcf (Size: 384.53 KB / Downloads: 522)
Print this item

  Drawing lines
Posted by: pinnerite - 12-16-2022, 10:22 AM - Forum: General questions - Replies (1)

I seem to have lost  drawing toolbar.
How can I recover it?

Print this item

  Unhidden docks take up whole screen
Posted by: pinnerite - 12-16-2022, 10:20 AM - Forum: General questions - Replies (2)

This is in 2.10.18.
Since this version was installed. Some functions are behaving unexpectedly.
At the moment I am looking at "Pencil" and it occupies the whole screen.
How can I reduce it?

TIA

Print this item

  Tools not working
Posted by: ScottM - 12-16-2022, 04:55 AM - Forum: General questions - Replies (3)

Hello,
For months now various tools and functions have not been working properly or at all in Gimp. The select by colour often makes a selection, but, for example, I can't invert it and delete or change the background, or the selection itself. Once I've made a selection by colour, I have tried the manual command as well as clicking the option in the EDIT tab to fill with forground colour, but nothing happens. There are other tools and functions not working either. I'm stuck. Can anyone help? I have Gimp GIMP 2.10.32 currently. I use a Mac Monteray. 12.6.1

Print this item

  Can the measure tool be set to show inches or mm instead of pixels?
Posted by: Muzician - 12-15-2022, 10:11 PM - Forum: General questions - Replies (2)

I see the measure tool defaults to pixels, I don't find a setting to change that to any other unit of measure. Is there such a setting and if so how do I access it?

Thanks.

Print this item

  G'MIC
Posted by: Honeybranchphotography - 12-15-2022, 08:52 PM - Forum: Extending the GIMP - Replies (2)

Hello everyone, Merry Christmas. When i use the g'mic filters they all work great except the dream smoothing filter. when i apply the filter my image turns white?? Any suggestions??

Print this item

  Curving a background image around an object
Posted by: Bsquared88 - 12-14-2022, 07:31 PM - Forum: General questions - Replies (2)

I hoping to find out if it's possible to take an image used for a background and create a curve in it.  The ideas is to create a rotunda-like appearance with the background being the walls and another object being placed central to the rest.  

I could be up in the night on this.  Most definitely it's above my current GIMP abilities.  I don't even know what to search for in tutorials or in this forum to find where to begin.  I did find the warp tool, and it has possibilities I think but it's not working to create the desired effect.  It looks more like a mess as if I was stirring in one paint color into another.  It just got sort of swirled around.  I found my cursor and fingers wouldn't cooperate to result in an even warp.

Print this item

  Cannot post at GIMPCHAT (Solved)
Posted by: Pocholo - 12-14-2022, 07:02 PM - Forum: Watercooler - No Replies

I'm trying to post at GIMCHAT and I get this error message:

This site can’t be reached

The connection was reset.

I clear my cache and cookies.Can anybody help or have any Idea why?  I'm on Windows 10 .Thank you in advanced.


**Never mind, I found out that is a Chrome issue. I used Firefox and I was able to post.

Print this item