Resizing in Photoshop

[Ex-biker]

I want to enter a competition in a mag, but have a problem.

Apart from whether my pics are good enough!

They want the pic submitted at 300dpi - A4 size in a TIFF format.

Prob is that at max quality my camera produces 180ppi - A4 (ish) size in Jpeg.

Now jpeg to tiff is no prob, but can I resize without losing the quality?

[fatsteve]

Ex-biker said:

I want to enter a competition in a mag, but have a problem. Apart from whether my pics are good enough! They want the pic submitted at 300dpi - A4 size in a TIFF format. Prob is that at max quality my camera produces 180ppi - A4 (ish) size in Jpeg. Now jpeg to tiff is no prob, but can I resize without losing the quality?

Short answer : No

Can can certainly resize the image to whatever you want. However, if the original is 180dpi and you resize it to 300dpi photoshop will interpolate (ie create) the missing pixels.

Can you get away with this to a certain extent when resizing images to print off. However the quality of the image is not maintained.

The only way you'll get from 180 to 300 dpi is to shrink the image dimensions. Sadly you're needing to increase the dimensions and the resolution.

Sorry

Steve

[simpo two]

What he said. To get A4 at 300dpi do that without mangling quality you'll need 6+ Mp.

[Bee_Jay]

You can upsize your picture with PShop by enlarging in 10% intervals multiple times, this gives a nicer upsize.

In Image, Image Size select Resample image and "Bicubic Smoother" then switch the units of measurement from inches to percent and type in 110.

Do that lots of times until the image is big enough for you.

Believe me - it works !!!