How To change 72 dpi to 300 dpi??

Common Common :: Tutorials, Tips & Tricks
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hello,

as the topic .. how to change the number of dpi? is it possible? :-\

for example, I want to create an image of 800x600 pixels but not with the number 72 is only 300 dpi ..

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Re: How To change 72 dpi to 300 dpi??

hello,

the dpi is resolution dependant. im not sure on the math but 800 x 600 will always have the dpi. its like saying i have a square 10 x 10cm and i want to fit more then a 100sq cm in that box… you cant.

use this link to workout the resolution required to meet your dpi needs

hope this helps

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Re: How To change 72 dpi to 300 dpi??

Perhaps I was mistaken, but previously worked in Artlantis and there could be seen dpi option to choose .. I set the resolution and select the number, for example - 300 dpi

hmm

thx,

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Re: How To change 72 dpi to 300 dpi??

hi again,

thats always been my understanding of it… but i may be wrong. The only way i could illustrate this would be via Photoshop. If you have an image open, and change the dpi from 72 which is default to 300… notice how the image suddenly gets massive…

As for Artlantis… i have no experience with… but maybe the feature you speak of is just a handy calculation tool like the website link is to get the correct sized image?

Just thoughts

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Re: How To change 72 dpi to 300 dpi??

Have a read of this: All About Digital Photos - The Myth of DPI

DPI is a relative unit - a legacy indicator to how large an image should be printed - If you want an 800x600px image to be 300DPI you must print it 2.6"×2" ( 800/300 × 600/300 ).
So what you need is work out how large do you want to print your image.

If you want a A3 print of your render in 300DPI, then:

A3 Landscape:
420mm × 297mm
16.54" × 11.69"

Width: 16.54 * 300 = 4962px
Height: 11.69 * 300 = 3507px

Now, if you should take that 4962 × 3507px image and print it on a A1 paper instead, then your effective DPI is ~150.

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Re: How To change 72 dpi to 300 dpi??

within that link thomthom posted you will find the link i posted… this is where i found my info

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Re: How To change 72 dpi to 300 dpi??

all clear :smile: thank you very much for the clear up doubts …
wszystko jasne :smile: bardzo dziÄ™kujÄ™ za rozwianie wÄ…tpliwoÅ›ci…

::slight_smile: