How Do I Make It Bigger?

[Carbo]

I'm talking about a collage, of course. What were you thinking of?
I need to increase the dpi from 96 to 300, but without increasing the size of the artwork.
I'm clueless about this stuff. Can someone give me a primer? It's a PNG file, by the way, which I guess is Photoshop.
Muchas gracias!

 

[mesthead21]

Do you have photoshop? You can use GIMP too i believe, not sure if they accept PNG's though

 

[Engraver]

If you change the DPI, it isn't going to change the physical size of the artwork, just the resolution per inch.

 

[FoBoT]

allthreemeds.com

 

[bonkers325]

some kind of salve or lotion

 

[FoBoT]

Originally posted by: bonkers325
some kind of salve or lotion

try icyhot or vick's vapo rub

 

[Jhill]

pumps work well

it takes awhile to get use to though

 

[bonkers325]

Originally posted by: FoBoT

Originally posted by: bonkers325
some kind of salve or lotion

try icyhot or vick's vapo rub

icyhot is an interesting cream to use. icy to dull it, then hot to...

 

[destrekor]

Originally posted by: bonkers325

Originally posted by: FoBoT

Originally posted by: bonkers325
some kind of salve or lotion

try icyhot or vick's vapo rub

icyhot is an interesting cream to use. icy to dull it, then hot to...

:laugh:
intriguing...

 

[Suspicious-Teach8788]

that's what she said.

 

[Electric Amish]

Originally posted by: mesthead21
Do you have photoshop? You can use GIMP too i believe, not sure if they accept PNG's though

GIMP will do PNG....

 

[NikolaeVarius]

Bengay. Works Wonders

 

[DrVos]

Originally posted by: Engraver
If you change the DPI, it isn't going to change the physical size of the artwork, just the resolution per inch.

It would change the printed size, but not the pixel dimensions. Going from 96 to 300dpi would mean that his output would go, for example, from 12x8'' to 4x2.5''

 

[AnonymouseUser]

Gimp > Image > Scale Image

 

[Carbo]

Originally posted by: mesthead21
Do you have photoshop? You can use GIMP too i believe, not sure if they accept PNG's though

Yes, I do have Photoshop CS2. And I just opened it up and making the change was simple. I guess I should have checked before posting. On the other hand, as I rocket towards 100,000 posts on ATOT, this is just one more milestone.

 

[rivan]

In this image, the "Image Size..." dialog from photoshop:

Pixel Dimensions: are the number of actual pixels your image is made up of.

Document Size: is a completely relative sorting of the pixel dimensions. Examples below.

Scale Styles: toggles scaling of layer styles when resampling the image. There is an upper limit to the scaling for styles and no warning when it's exceeded (typically only an issue on very large or very high resolution images).

Constrain Proportions: automatically adjusts Y dimension when for a typed value of X.

Resample Image: Toggle on to allow a change in the Pixel Dimensions of the document.


Examples of document size. For the example, a 2400x3000 pixel image, the print size is 8x10 at 300 dpi (8"x300 dpi = 2400 pixels, 10"x300 dpi = 3000 pixels). The same pixel dimensions print 16x20 at 150 dpi. To get a 16x20" at 300 dpi, you would need to double the pixel dimensions to 4800x6000 pixels (16"x300 dpi = 4800 pixels, 20"x300 dpi = 6000 pixels).

Now, increasing the pixel dimensions via the image size dialog will probably NOT improve your PRINT quality. Photoshop (and no other program) has to simply guess at what those extra pixels would be - a function also performed by most consumer and most commercial printers (and they do it in a manner specific to that printer, something photoshop can't). Don't believe me? Print it once at 96 dpi, then scale it up to 300 and print it again. It might even be slightly worse.

That's not to say there's nothing that can be done to improve your image, just that simply scaling it up will not help, by itself. Scale up, then sharpen/bump contrast/etc as appropriate to the image and you can end up improving the situation. However, chances are, if you're asking how to scale an image, you'll probably need help to do anything further.

There are also other products that use fractal scaling to resize images, but with plenty of experience with several of them, I can confidently say their results are inconsistent - sometimes they work great, sometimes not so much.