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Questions tagged [dpi]

Dots per inch, where a dot is the smallest imaging element in an output medium (droplet of ink, for example, or subpixel in an LCD screen).

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4answers
821 views

Does bumping DPI improve the print quality?

I am about to publish a book and after uplaod the contents, I was notified various errors esp about the images that were less than 300 DPI (115 dpi, 150 dpi, 200 dpi). I was told that they can can ...
-1
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3answers
174 views

How to calculate the max size of an image based on the canvas size?

How to calculate the maximum height or width of an image based on the canvas size or poster card size? example: image size is as below: height: 3648, width: 5472, and poster card size: 150 * 100 (W*...
11
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1answer
187 views

Can a blind person resize a photo independently?

I am a totally blind computer user. I encountered an accessibility barrier when I was attempting to use the site http://www.vitalchek.com/ to order a birth certificate. They require you to scan or ...
2
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3answers
160 views

Calculating cost of Inks

I am working on an app in which I need to estimate the amount of ink used to print something and corresponding cost. I am not sure if this is the right place to ask this question. If not, please point ...
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3answers
10k views

72 DPI or 300 DPI - Which Is Better For Web And Print Both? [duplicate]

Firstly, this may seem like a repetitive post. But please help me clear my doubt. It's based on my particular use case. I am making a website where images will be available on web, but they can also ...
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1answer
1k views

How to scale up an image for print. How large can i go? [duplicate]

I have an approximately 2500 pixel x 3500 pixel image. How do I figure out the largest print that I can get from it? At the 300 dpi printing standard that would only yield about 8x12" but I need ...
0
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3answers
652 views

How to submit a picture with 12mp and 300dpi to a contest? [duplicate]

I was wondering how can I make an image stay 12mp and 300dpi. I want to participate in a contest about street photography but their requirements are that the image must be 12mp and 300dpi. I'm new to ...
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2answers
682 views

Is there a way I can scan an A4 photo at 4800 dpi?

I have the Canon CanoScan LiDE 220 Compact Scanner, it claims to be able to scan at 4800 x 4800 dpi. However when I try and scan at this dpi, it says it cannot scan a full A4 photo and tells me to ...
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2answers
4k views

Trying to print A1 size paper, but confused over dpi/resolution settings

I would like to print something on A1 size paper, and just opened my Photoshop to edit the picture and I am confused about somethings. I found online which size to choose, but other than that all the ...
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2answers
2k views

Is 4288 X 2848 pixels an unfriendly ratio for quality printing and framing or am I missing something?

I have a Nikon D5000 that shoots 4288 X 2848 pixels. When I take pictures, I'm not thinking of how I may need to crop the picture later on or add a border / matting so that it fits into a common ...
0
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2answers
635 views

Is there a way to change camera settings (Nikon D40x) to a higher dpi? [duplicate]

I know increasing the size of the photo (S,M,L) does not affect the dpi, but refers only to the pixels. My camera shoots at 300 by default, but sometimes I want a crisper look when I get larger ...
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2answers
1k views

Too low DPI for canvas [duplicate]

For my mom's birthday we had a photoshoot with the grandchildren. The photo we would like to print on a canvas is 3530 x 2353 and the desired size is 140 cm x 93.3 cm. Now the software says that the ...
0
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4answers
89 views

Do cameras assume a particular size of print when reporting DPI?

When a photo indicates that it is, say, 300 DPI, is that based on a standard sized print? i.e. is there a specific standard size that the DPI is based on, and if so what is that size?
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1answer
1k views

Optimal DPI Setting in Olympus OMD EM5 mii? [duplicate]

I had been using the default 350 dpi, but the resulting files are too small to sell to most stock photography sites online. For a standard print at 300dpi, they are great. A bit low for my metal art, ...
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1answer
247 views

How big can I print this image? [duplicate]

I have a JPG file with a resolution of 3000x2077. How big can I print this image ? Thanks in advance
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3answers
166 views

What will a commercial print service do if the image I submit doesn't have enough pixels for the desired DPI?

If I have a 4000px × 3000px image which I want to print at 200dpi, so its size will be printed at 20" × 15". If I send the image to a commercial printers and ask it to be printed at 40" × 30" do they ...
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3answers
3k views

How does the dpi setting affect the image exported from Lightroom [duplicate]

If I export an image from Lightroom (as a jpeg) I can specify to resize it to particular dimensions, or keep it as it is. But regardless of that there is also a dimension field as in dots per inch but ...
4
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1answer
399 views

Any reason not to set ALL photos to “300dpi”? [duplicate]

I run a site where multiple photographers upload and sell their photos to my users. Some of them just want to buy a JPEG, some of them want to buy a JPEG to print. You and I both know that a ...
0
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0answers
48 views

Canon Power Shot A2200 [duplicate]

Canon Power Shot A2200 digital camera. Photographing my paintings to make art prints for sale. Need high-res pixel #. Say, equal to 300dpi. Best I'm at now is 72pixel. I know camera can do much better,...
2
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2answers
1k views

How many printed dots are needed to represent a pixel with an inkjet printer?

Context I have a digital picture with a size of x*y pixels. I'm trying to figure the maximum print size I could produce and still have an image which "look good" (relatively to human perception at a ...
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0answers
43 views

How big can I print my 24mp image? [duplicate]

So I have a 24mp photo that I want to print as large as I can, at 300dpi; how large is that? And more generally, how is the print size calculated as a function of the capture and print resolution?
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0answers
94 views

Senior picture 72 dpi vs 300 dpi [duplicate]

So i took my senior pictures and it said it was at 72 dpi. My school said they needed pictures to at least 300 dpi. I researched and found out that 300 dpi is the best printing quality. I changed the ...
4
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3answers
908 views

How should I specify minimum quality requirements for images submitted to my image archive?

I hope this doesn't cover too much of the same ground as the typical DPI question. I am a technical writer working with my company's marketing staff on developing an image archive. Because most ...
3
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2answers
345 views

What is meant by pixels and DPI for photo submissions?

I am submitting a photo for an exhibit. They require a jpeg to be evaluated and then a print, if accepted. The rules indicate "Entries must be in JPEG format sized at 300 dpi on a CD (4” width of ...
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3answers
182 views

Is this rather high resolution possible to achieve?

I'm looking to make a sticker with wood texture printed on it for a cable concealer of 1 meter. From my calculations, this requires a digital image with a DPI of 300 and a resolution of (1300x11810)px....
0
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1answer
638 views

Can a image have different XResolution and YResolution?

In EXIF data I see stuff like XResolution = 72 YResolution = 72 I'm trying to display that on a site, and I was wondering if I should display both or just a single "72dpi" ? Are there any cases ...
30
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5answers
13k views

Is there any practical difference between saving at 300ppi or 72ppi?

I often see statements in discussions about web displayed image quality that go something like this: "I only upload pictures at 72 dpi and 1200 pixels on the long edge, so if someone copies and prints ...
1
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2answers
1k views

What would look better - reduce the size of image and print with lower DPI or increase the DPI instead?

I'll give an example, to make my question a bit more clear. If I have e 12Mpx camera (D700, always shooting in raw format), the highest possible resolution is 4256 × 2832. Obviously, in most cases, ...
1
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2answers
45k views

What is the optimal resolution required of a picture to print on an A1 size canvas?

I am working on a poster in which the background is a photo that I took myself (18 MP). I am wondering what would be the best resolution for printing this photo on an A1 canvas. This might sound very ...
1
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3answers
11k views

If image I change an image from 72dpi to 300dpi, can I scale it up size without losing quality? [duplicate]

Title says it all. When I change my image from 72dpi to 300dpi, the image gets smaller. Can I scale the image back up and print it out at 300dpi without sacrificing quality?
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1answer
214 views

What could be the best printing medium for this image? [closed]

I am not a photographer or an artist by any means. I simply would like everyone's opinions on what would be the best medium to print this image to. I was leaning towards getting it printed on canvas ...
1
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1answer
381 views

DPI in photos vs DPI in Printers/Scanners [duplicate]

When I look at the properties of a JPEG shot on my Canon 5D MkIII (set to the highest quality settings on the camera), i've noticed that the 'Horizontal/Vertical Resolution is 72 DPI' My only ...
0
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2answers
1k views

Best dpi for printing a 48x18 inch at 200%?

I have an image in photoshop I want to print at 200%, and right now it's 48x18 inches, and the resolution is 72 dpi. I read somewhere that changing it to 600dpi would allow me to scale it by 200% at ...
3
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2answers
229 views

Is there a way to make a photo look good for the web but not for small prints?

I work at a professional photography studio and was given the task of creating a photograph that would look good on social media websites. At the same time, the image cannot look good for printing of ...
0
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3answers
367 views

How can a 900X500px image have ~5400 DPI? [duplicate]

Possible Duplicate: Does the dpi number reported by camera in JPG have any meaning? I am investigating on the size and resolution of the photographs posted on the Internet. I have visited many ...
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3answers
851 views

Dots per inch calculation [duplicate]

Possible Duplicate: What does DPI mean? I have a hard time understanding the concept of dots per inch. I've looked the wikipedia article and I am still unsure. Say I have a 4"x6" photograph at a ...
4
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2answers
2k views

Is it possible to print a good quality 72X72" photo from a Nikon D700?

A printing job requires a 72x72" image. I shoot with a D700. Is there any way to get a quality print at that size from a D700?
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2answers
1k views

How to reduce the image resolution to increase ppi?

Having an photo of 4000x3000 resolution with 240ppi. Is it possible get a resolution of 400x300 resolution but with higher ppi?If possible how to do that?
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1answer
249 views

Best Digital Scanning techniques - help

I want to scan a paper shown below. Actually I need the photo of the jets taking off, I dont need the entire newspaper. This is what I have - I have to do color scanning, I have a HP scanner which ...
4
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1answer
21k views

How large an image do I need to print a 32″ by 18″ poster at 300 DPI?

I need to have an image printed as a poster 32″ by 18″ (about 80x45 cm) at 300 DPI, but I am unsure of how big the file must be. Also, what file format is best?
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5answers
2k views

How does optimizer software reduce file size without reducing resolution?

There are numerous applications for reducing filesize. Most of them reduce resolution (e.g. from 300dpi to 72dpi) or reduce height and width. I tried http://www.imageoptimizer.net/ Surprisingly, when ...
21
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6answers
4k views

Does the dpi number reported by camera in JPG have any meaning?

I have two cameras, a 6mpix Panasonic FZ8, and 14mpix Canon A2200. When I compare shots from two cameras, one of differences I notice is dpi number that camera reports in JPG info: FZ8 reports dpi=...
2
votes
4answers
13k views

How do I get a photo of the required 300dpi or for a 24x36" vinyl banner?

When I go into Canon Photo Professional and change the dpi output to 300 or 350, do I also need to go down to resize setting and change those? The vinyl banner will be 48x108 with the photo being ...
8
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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. ...
13
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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?
15
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2answers
37k views

What does DPI mean?

What does DPI mean and how does it affect images displayed on screen versus printed?
76
votes
5answers
56k views

How do I generate high quality prints with an ink jet printer?

Creating high-quality photo prints using an ink jet printer is no trivial matter. Depending on the tonal range and color depth desired and the expected viewing platform, how you approach printing may ...
49
votes
7answers
183k 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 ...