Up sizing an image

[Klickit]

I have a portrait jpeg that's 2592 x 3872. I want to take a small portion of that, say around 10%, and up-size it. I have heard that it is possible to do this in stages, rather than in one hit and that doing it in stages produces a better result. Does anyone have any views on this and also, which sharpening method would it be best to use. Thanks.

[Colin Southern]

Hi Kit,

Specialist programs like Genuine Fractals give the best result, but often just a plain old bicubic smoother is more than adequate. It really comes down to how big you're going to display or print, and what the viewing distance is going to be.

For what it's worth, I've not had a lot of luck with incrementally up-sizing.

If you want to send me the cropped image I'd be happy to take a look at it for you.

[Steaphany]

Kit,

I recommend Qimage and I have their Studio edition. It's described as a photo printing software package but I use it as the final step of PP to create a file that I upload to my print fulfillment service. I've also spoken to others who use Qimage and sucessfully upscaled images for creating 10 foot wide banners.

Paralleling Colin's offer, send me the crop and tell me how large you want it and I'll send you the Qimage result.

[Klickit]

Thanks Colin & Steaphany. I'll try the bicubic smoother and if that isn't satisfactory, I'll send an image to you both.

[Steaphany]

Kit,

Regardless of your efforts, why not allow Colin and me to work our magic so you can evaluate all three techniques side by side ?