Re: [Gimp-user] Need Gimp DPI increased

[Ofnuts]

On 07/23/2012 09:35 AM, Bludigo wrote:

Dear Gimpers

Please assist me.

I took a photograph of an original work of art I had donw- 200cm x 140cm.
Saved the photo (it seems) to JPEG.
Opened the JPEG in Gimp 2.
Manipulated it using the GIMP 'Cubism' function.

Then someone approached me to purchase the manipulated image but requested the 
image be canvas-printed at the same large format as the original work of art of 
200cm x 140cm.

I approached a canvas printer with this GIMP file and they claimed that my Gimp 
file was now too small (25cm x 12 cm) and too low res for the 300 dpi I needed 
for a quality printed canvas image of 200cm x 140 cm.

Please can someone assist me to get this GIMP file DPI up to be able to print 
the image large format?

Please please?

thanks
Bludigo



200x140cm @ 300DPI is 372Mpix completely unrealistic. At normal 
viewing distance the average human eye doesn't see any detail smaller 
than 1/1800 of the diagonal (which means a 6Mpix image is normally 
enough, whatever the physical print size) . 300DPI is also going to be 
finer than the canvas...


How big is your current image (in pixels, since that's the only thing 
that counts)?


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Re: [Gimp-user] Need Gimp DPI increased

[Johan Vromans]

Bludigo for...@gimpusers.com writes:

 the GIMP image properties say 900 x 572 pixels.

That's much too low... Either you took a low-res picture (simple mobile
phone?) or you downscaled it in the Gimp.

For a canvas print as you mentioned 3000x2000 is more realistic.

Check the original image, the one before you started manipulating it. If
this is of sufficient resolution you can retry to manipulate a new copy
without downscaling it.

-- Johan
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