how would i turn a pixelated image into a good quality image? it can be done with cctv, what bout .jpg's and .bmp's?

thanks for any replys

no you cant make a bad quality image into good quality one.. you can do the oposing thing though..

y can police and twats do it wit cctv pictures? must b a way? probs not commercial...sod it

In movies they always do... lol but i strongly doubt it's possible. The information that is required to make the image better is simply not there.... so unless there is an uber-program that can guess the missing parts.... doubt it

Humm yea like that show CSI, some detetive got the reflected image off this girls eye in a pic of her. Pfft yea right.

maybe there is a program to arrange the pixels randomely untill i get the picture u want. ofcourse in a selected area because if it was a big picture it would take forever.

quote:

---

Originally posted by may73alliance
y can police and twats do it wit cctv pictures?

---

quote:

---

Originally posted by WDZ

quote:

---

Originally posted by may73alliance
y can police and twats do it wit cctv pictures?

---

My best guess is that they take advantage of multiple frames of video. Each frame is at least slightly different from the one before it, so maybe by combining data from many frames, and applying advanced algorithms/filters, they can get a higher level of detail.

Of course, I don't believe most of the image enhancement I see on TV shows. Notice how it's much more common on fictional shows as opposed to shows based on true stories?

---

There are image sharpening algorithms that systematically guess where actual edges are.  I believe the most effective of these is unsharp masking.  Google it.  Most graphics packages such as photoshop/psp/fireworks have a "sharpen" tool which uses processes such as these to improve the image.

Or if it's square-pixelated, you can try to reduce the size to a point and zoom it in with some bicubic algorithm. This won't make it much better, but at least you don't have those chunky pixels anymore, but a smooth thing (rather blurred than pixelated in this case). Applying a sharpener there might improve it a bit.

best way i can think of is to use blur, sharpen and then hand tools to touch up... the computer cannot make educated guesses about the whole picture, only follows certain rules. you however, can work out what the picture is meant to look like and improve the image.

doing it like in the films is impossible... the only way i can think of that being realistic is if the cctv camera is capable of high res images but will be set at low res to monitor movement... when a high res image is needed it has to change to take a better image. just like in a digital camera with different quality settings.

however making something out of nothing is impossible! or else i would be rich

quote:

---

Originally posted by gif83
however making something out of nothing is impossible!

---

what i'm saying is that it's always going to be a calculated guess...and the guessing should be done not soley by yourself or soley by the computer... a partnership is the best option... which is also done by astronomers (who hire artists)