Scudamore Posted 17 February, 2009 Share Posted 17 February, 2009 I'm looking to upsize a photo without losing to much of the quality. Was just wondering if you guys might have some top tips? Link to comment Share on other sites More sharing options...
Pancake Posted 17 February, 2009 Share Posted 17 February, 2009 What size (pixels) is it at the moment? I used to use "Genuine Fractals" when I was shooting on a 4mp Fuji; it was very good at keeping detail without adding too much digital noise or artifacts Link to comment Share on other sites More sharing options...
Scudamore Posted 17 February, 2009 Author Share Posted 17 February, 2009 (edited) I'll give you a little background... I work at a signmakers. We print and apply digital wallpaper amongst other things. Example below. See the books? Yeah...they're not books. How very clever i hear you cry. Well anyway i'm looking to get an image of Habitat 67 which i've sourced onto said wall at a size of 2.2m x 2.7m. But my image size is 1024 x 681px 72dpi. Is this gonna be possible do you think? Oh and as an aside i also offered my services to the marketing department of Southampton FC as i thought it would be nice to have a wall with a photo of the FA Cup winning team in the boardroom to perhaps draw a line under the whole train debacle. Apparently they are too busy to reply to such things though... Edited 17 February, 2009 by Scudamore Link to comment Share on other sites More sharing options...
Pancake Posted 17 February, 2009 Share Posted 17 February, 2009 First up, can you get a large image of the Habitat 67 (Im not going to bull**** you, I aint got a clue what that is...)? 72dpi, as you know, is pretty low. 240 would be best for a huge upsize. Link to comment Share on other sites More sharing options...
Scudamore Posted 17 February, 2009 Author Share Posted 17 February, 2009 First up, can you get a large image of the Habitat 67 (Im not going to bull**** you, I aint got a clue what that is...)? 72dpi, as you know, is pretty low. 240 would be best for a huge upsize. This is Habitat 67...an ugly beautiful piece of architecture in Montreal I could get a higher resolution image...but that would require me putting my hand in my pocket... Link to comment Share on other sites More sharing options...
Pancake Posted 17 February, 2009 Share Posted 17 February, 2009 Oh, I see... Bit of an odd one, but do you have a Flickr account? if so, do a search for Groups of Montreal residents or a Fan Group of Habitat 67 and drop some notes out about needed a license free high quality image of the place. Link to comment Share on other sites More sharing options...
Minty Posted 17 February, 2009 Share Posted 17 February, 2009 Apologies if any of the following sounds like I'm teaching you to suck eggs, but obviously I don't know your level of knowledge. Now, judging by that photo of the wall above, I would guesstimate that people will be viewing it from a minimum of 5 feet away At 5 feet viewing distance the human eye can resolve about 0.72mm line pairs; ie 0.028 inch; ie 35 per inch; ie about 70 dpi, so anything less than that, and the eye will notice it. That's the theory at least. 72 dpi means nothing without the size. 1024 x 681 pixels, at 72dpi would give you an image of 14.3 x 9.5 inches. The wall you want to cover is approx 86 x 106 inches, so you'd need to upscale the existing photo quite a bit to get there, and that's at only 72dpi... I would personally go to at least 100dpi, probably more. Also, don't forget also that the picture you have already is the wrong aspect ratio... you'd need to crop it to 839 x 681 to be correct, so you're losing more of the picture already. As Pancake says, you ideally need the largest file you can get hold of to give you the best possible starting point, and then the best thing to do is simply try upsizing it to 86x106 inches, at about 120dpi, in whatever packages you have available to you... Photoshop does a good job if you have nothing else to start with... and then print out some 100% samples to view. If this is a commercial job then pay for a hi-res image and build the cost into your quote. Link to comment Share on other sites More sharing options...
Hamilton Saint Posted 28 February, 2009 Share Posted 28 February, 2009 Check out this image of Habitat (built for Expo 67). Link to comment Share on other sites More sharing options...
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