Can a resolution of a photo be changed??

[jal_desai]

hello all,
I have a camera bought 4 years ago having only a resolution of 2.1 Mega Pixels. Now as we all know there occurs much difference in the output if the number of MegaPixels is more... All I wanna know is.. can a photograph taken at a 2.1 Meg Pixel be converted (Or may be made so as to look like) a 4 or 5 MegPixel photograph.... If there is a way... please do let me...

 

[tuxfan]

All the free tools available will spoil the photo by making it grainy! I have read about some paid software available for this purpose. Don't remember it exactly. Search on google/yahoo.

 

[shovik]

Yes definitely the resolution of a photo can be changed with help of special algorithms. But only upto a limit, over that it may become grainy...

EDIT:
DO NOT POST LINKS TO PIRATED SOFTWARE!


Hope this serves your purpose....Let me know...

Regards,
Shovik.

 

[kalpik]

^^ Those links aint leagal!

 

[TechGuru#1]

Quality may b increased from 2 to 5-6 MP onbly at cost of DPI/PPI which is lowered & so u get the bad Grainy effect.
If it was so easy changing resolutions ONLY by software algorithms,then the High-End Digicam SLR businesss would not have exsisted as of today!

 

[shovik]

but the high end digicams and slr all work on the 3d principles, without those algorithms you couldn't have boasted of these gadgets.


Regards,
Shovik.

 

[deathvirus_me]

Well .. resolution can be lowered .. not increased ... simply put ... say u take a picture at 1024*768 ... the no. of pixels captured is 786432 ... so if u increase the res ... to say 1280*1024 . the no. of pixels will not increased .. but the original pixels stretched to occupy the same area at the 1310720 pixels would .. which seems an increase of ~16% ... now imagine per pixel stretched by such a big percentage ...

In simple words .. it'll take quite some time to maintain the quality and increase the res. (possible via image editing softwaress like Photoshop , Gimp etc. etc.) .. but the time and patience required is eally not worth it ...

2.1 MB should do 1600*1200 ... why do u need to stretch it further ???

 

[jal_desai]

yes , i do know tht resolution can be lowered but not increased... but does tht mean there is no other alternative rather thn buying a Hi-Res camera... i mean it's 21st century yaar, some or the other thing must be there to solve the problem... wat say?