Linked Questions

49
votes
7answers
185k views

Is there a general formula for image size vs. print size?

What size images do I need for common print sizes, such as wallet size, 8x10, and 16x20? Is there a general formula? How could that size change if, for example, a 16x20 was printed on canvas rather ...
28
votes
10answers
31k views

How many “MegaPixels” can the human eye see?

There is obviously a limit to what the human body can process, such as frames per second. My question is how many MegaPixels would it take before the human eye can no longer differentiate it from ...
18
votes
4answers
99k views

How can I upscale a low-res image to make it appear higher-res?

I want to enlarge an image to a bigger size. This will cause pixelation. So I want to apply some treatment to it in Photoshop that will suppress some of this pixelation. Of course I cannot generate ...
16
votes
3answers
2k views

How to make my digital photo prints to stand in the face of time?

I'd like to print my photos, but I'd also like to see prints' colours stand time. What good options do I have? I've considered the following: Inkjet printers with good inks. For example: the Epson ...
15
votes
2answers
38k views

What does DPI mean?

What does DPI mean and how does it affect images displayed on screen versus printed?
15
votes
1answer
1k views

Technical implementations of upscaling

So I've seen bicubic and fractal listed as methods of upscaling photos. What's the technical details behind how these work and why/when is one better than the other?
14
votes
3answers
7k views

How do you optimally resize and sharpen images for printing?

What is the best way to get the clearest, sharpest print without pixelation or blurring? I have tried some sharpening techniques in Photoshop, however they are geared towards sharpening for viewing on ...
13
votes
5answers
11k views

What are the minimum DPI and size (in pixels) required to print good 10x15 photos?

I have canon 400D. my photos (jpgs) are usually from about 3.5 MB to 6 MB (3888 x 2592 in pixels). How can I resize them to get good 10cmx15cm photos & faster upload?
11
votes
4answers
2k views

How do quirks of the human vision system affect photography?

When looking out at the world through our eyes, it's easy to take for granted that our perceptions are an absolute rendering of How Things Are. But in fact, it's not quite as simple as that. Most of ...
10
votes
6answers
98k views

Is it possible to scale up an image to increase the the pixel density?

I have taken a picture whose resolution is less. I can resize the image easily (i.e I can scale to higher resolution) but the image quality goes for a toss, which is true because the image might not ...
9
votes
6answers
133k views

What is a suitable image resolution for canvas prints?

I would like to create a 60 inch x 20 inch canvas print using an image with a resolution of 4759x1798 (240 pixels per inch) and I would like to know if the image quality will still be good at that ...
8
votes
2answers
8k views

What DPI should I resize my image to for best printing quality?

And my apologies if this sounds a bit too basic but I can't get my head around this. I have a digital image I took with my camera. 4000x3000 pixels, and GIMP claims that its resolution is 72x72 DPI. ...
7
votes
6answers
16k views

How big can I print a JPEG photo that measures 5120 x 2880 pixels? [duplicate]

I have made a collage with 5120 x 2880 px size using picasa. Now I want to order a print of it. What would be the best option to make a canvas print or a poster print? I want the best size and ...
7
votes
1answer
2k views

Does printing a photo at a higher PPI use more or less ink?

Does printing a photo at a higher PPI use more or less ink, and why? Can this be calculated or estimated?
6
votes
4answers
2k views

Upscale iPhone taken photograph

I have taken a photo with my iPhone which i would love to use a my website background using jQuery to stretch it dynamically. However its obviously a fairly low resolution. Is there anything i can do ...

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