Any software to enlarge small picture scan?

[The Day Dreamer]

So my sister's last birthday with us before she gets married. Want to give her a wall size portrait of that childhood pic of her. I got a good scan of passport size photo.

How to enlarge it ?

 

[lxskllr]

Gimp, or probably any image editor. Scale image to size desired. Results may vary depending on quality of original.

 

[corkyg]

The max number of pixels is set by the scan. To get a large scan from a small original, use the highest practicable DPI setting your scanner can provide. Gimp and Irfanview can enlarge a pic, but it will not increase the number of pixels - it just makes them bigger. This results in a possible loss of apparent resolution, depending on the distance it is viewed from.

 

[nickbits]

If you need to enlarge the scan, it would probably be better to rescan at a higher dpi.

 

[C1]

An Adobe plugin like "Genuine Fractals" is able to enlarge a photo to any size (eg, big as the Empire State building if you want). Got to a photo/printing shop that has such capability. I even thought that Id seen some vendors who will process photos online (ie, via the networks).

 

[Berliner]

How large do you have it now? (Pixel size)

How large do you want to print it?

You might already have a working 200 - 300 dpi (output res) scan.

 

[OlyAR15]

I've used this, works pretty well.

http://www.ononesoftware.com/products/resize9/

30 day free trial available.

 

[Lorne]

If you need to enlarge the scan, it would probably be better to rescan at a higher dpi.

^^^^^ This.

 

[corkyg]

If you need to enlarge the scan, it would probably be better to rescan at a higher dpi.

Yeah! That agrees with what I said, and this illustrates how scan DPI makes a difference: http://www.scantips.com/resolut.html