If you can come up with an algorithm that can do this in a good way without too much quality loss then it might be feasible.
Photoshop has such an algorithm, but in Photoshop an image still loses a significant amount of quality and/or sharpness when doing this.

When you try to add resolution, you're trying to invent details that were lost when the image was compressed. You can do what you describe to increase the pixel density, but what you're left with is typically a fairly blurry image because you don't have the data to reconstruct the fine detail features that originally existed within that blur.

You can do this for very specific cases (e.g. if you know the image is a face, you can insert typical face details) which will result in realistic-looking images but since you inserted made-up data, you don't know if they bear any relation to the original image.

I agree with the comments above, though you could look into converting the graphics to some type of vector format. Then the images can be grown with ease. Check out InkScape and other vector graphics packages. They might already have some features that might do what you want.

Check out http://www.greyc.ens...n/demonstration.html

Maybe somebody can create a nice GUI for technology if there isn't one already.

Converting to vector formats would seem to be a step in the wrong direction. When you scale up a vector image, you'd essentially be filling in the new pixels with background, not even interpolating between neighboring pixels to fill in gaps. Yes, vector graphics scale cleanly, but they don't create detail where none existed before.

what is densification? is it a new word... just wanted to know.... =(

I think he coined "densification" as the logical word for "making something more dense". It's not a typical word in image processing, but it's a logical extension of "dense". In this case he means increasing the pixel density of an image, say from 72 dpi to 300 dpi.

Nice idea, difficult to relize... (I think)

There's a technology now used in the film industry to convert movies shot on 36mm film to a higher resolution for showing in Imax cinemas. The results are claimed to be very impressive - the last 2 Harry Potter Movies were given the Imax treatment this way.

man i really dont know if it can done.....but if it can be ...BRAVO

From the above Imax treatment already answered the problem that become the inspiration of this idea.

eKKeNomo, huh?

Imax and various HD video systems shoot special cameras to capture hi-res footage. They don't invent detail where there was none before. What problem are you saying Imax has solved?