is there a software for increasing the resolution of a video?

Question

while enabling the fullscreen on media player the movie's clarity gets lesser. so is there a software for correcting it?

Answer 1

In short, no. The resolution of a video file details exactly how much information is contained in any given frame of the video. For example, if a file was created at 640x480, it can fill a window of that size with all of the details captured by the original recording device. There is enough information to completely detail 307200 pixels.

Should you expand the size of the window to 800x600, you would need to fill 480000 pixels, which is more than the file has data to do. So the software stretches out the information it does have to cover a larger space.

For a physical example, say you're trying to measure the circumfurence of an irregularly shaped object. If you use a straight ruler that's 1 foot long, you can get an answer, but it would leave out any indentations smaller than 1 foot. Thus, the final "picture" created by that ruler wouldn't include those depressions. But if you used a ruler an inch long, you'd have to take a lot more measurements, but you could include indentations of 1 inch or less. This is exactly like using higher or lower resolutions when recording a video file (the foot ruler would be lower res than the inch ruler). This accounts for the loss in quality you see when going to fullscreen: the software has to extrapolate and guess what would be in the video file from a measurement that isn't sensitive enough to include that.

There are a few "solutions" to this. The most straightforward - though usually the least feasible - is to simply use higher resolution video. If you aren't the original creator, this isn't really an option.

Another solution would be to drop the resolution on your monitor. That way you could display a video with a small resolution fullscreen without having to stretch it out. This may be annoying, but will work.

The other is to find software or formats that do a better job of expanding video files. RealMedia is pretty good at this: you can expand a file from its original size to a window more than twice that size without degrading the resulting output too badly. But this means you have to use RealPlayer, which has its own drawbacks, including not being all that popular. Most video files you find lying around on the net aren't in .rm format.

But again, there is no software that can "clean up" an expanded or zoomed video file because that requires information that is not in the file itself.

Answer 2

No. The original video is probably a small size, say 320x240. When you switch to a large screen, say 1024x756, it has to expand the 320 dots into 1024 dots (about four times as many). It does this by placing the existing dots four pixels apart and the averaging the color between the dots next to above and below. Results, a grainy picture. There is no software I have ever seen then can expand a video to full screen without the effect. It has to fill in the holes somehow, and averaging is the only way.

About all you can do to avoid the problem is create any new videos you make (assuming this something you made) at the full screen 1024 size. Then it will not have to be expanded. (That will usually be listed on your video edinting software as DVD quality picture).

Answer 3

Not really. If the original is grainy then you are just enlarging the poor quality. Take a pencil and write your name on a piece of paper. Looks good from your point of view. Now, take a magnifying glass and look real close. That is an analogy to fits this situation.

Answer 4

The only thing that might help is a better video card Other then that the video quality depends on the original source

Answer 5

no. yet I even have the e63 and that i will tell u, if u have it set to the utmost determination, dont use the zoom, have sufficient lights and save ur hand very nevertheless, u can take some great high quality movies, extremely outdoors with the sunlight at the back of u. same with the photographs.