Video is grainy on laptop but good on TV, why?

[Bencuri]

I have recorder a video with my Samsung HMX H200 camcorder. I have set the aperture manually and done a night recording. When I watch the video on TV, the image is quite acceptable, there is very few grainyness, mostly when the light is really low, when there is a lamp, the whole thing is very acceptable for me. However when I watch the video on my laptop, the whole video is very grainy. How is this possible?

I have attached a sample below.

What can I do to make the video grainless during playback on the computer?

[jagabo]

Because your TV is running a denoising filter? Computer monitors are designed to work with "perfect" video from computers so they don't make any attempts to enhance the picture. Ie, your computer is showing you what the video really looks like. If you don't like it apply some filters in your media player or graphics card.

[Bencuri]

Which video playing softwares are capable of denoising it the best?

Anyway, the TV does a great job. With setting the aperture manually on this cheap camcorder, the night video can become quite acceptable. I didn't know, with a little filtering added by the TV, the night recordings can be so pleasant.

[Bencuri]

I have checked the settings of my HDTV, but no matter what option I switched off, the picture of these video recordings I mentioned was never grainy. Is it possible the TV has some built-it correction filter?

[jagabo]

I would check your computer's graphics card's setup applet first. Look for a video or media section with filters. Then any player will end up getting filtered. Having the GPU remove noise is much more efficient. The CPU will have problems with high definition video.

Noise and other filter settings are usually available on TVs. Did you see sharpness, brightness, contrast, etc.?

[Bencuri]

Yes, there is sharpness, contrast brightness and there are also video perplexity correction and color correction options. If I switch off this latter two, nothing happens, the video is good, still much better than on computer. There is also a section in the Image settings: Pixel Plus HD. It also has collor correction and mpeg perplexity correction separately inside the section, but it also doesn't make sense if I switch those off. In the Pixel Plus HD section there is also dynamic contrast and dynamic backlight menus, but I didn't alter those, I guess those has nothing to do with grains. The dymanic contrast is switched off, anyway at the moment. Maybe the usual settings, like brightness, sharpening, contrast and color has to be altered to see the grains?

[lordsmurf]

It's interlaced. But it's not really grainy that I can see.

Your computer is a laptop? Laptop displays pretty much universally suck.
You'd have to buy a high end laptop for a quality image.
The Sony SE2 series has IPS displays: http://www.amazon.com/gp/product/B00713KF3Q/ref=as_li_ss_tl?ie=UTF8&camp=1789&creative...Q&linkCode=as2
But you pay for it.

[FulciLives]

I used to have a CRT rear projection HDTV (1080i) and things always looked less grainy on it vs my LCD computer monitor but that's because the image just wasn't as sharp on the HDTV as on the LCD computer monitor.

Perhaps you have some sort of similar HDTV display?

- John "FulciLives" Coleman

[jagabo]

Unfortunately, none of us can see your laptop screen so we can't tell if there's something wrong.

[Bencuri]

I used to have a CRT rear projection HDTV (1080i) and things always looked less grainy on it vs my LCD computer monitor but that's because the image just wasn't as sharp on the HDTV as on the LCD computer monitor.

Perhaps you have some sort of similar HDTV display?

- John "FulciLives" Coleman

I think it is not because of that in my case, because the video is actually sharper on my HDTV than on my computer LCD.

[Bencuri]

Unfortunately, none of us can see your laptop screen so we can't tell if there's something wrong.

All the 3 laptops here at home is doing this thing. But I have just installed a 64-bit Windows 7 on my Lenovo B560 i5 processor laptop, so now it can use the full memory capacity, videos are smoother, and when I play the video in VLC player, it shows much less grain than in other players. With Windows media player, the video is grainy with that laptop, too, but VLC shows better image. I set 100% noise reduction rate in the video card control panel, but the problem is that I am not sure if the players consider that. I ticked the box: "override player settings", but many players seem to ignore that. This is the Intel HD control panel anyway. I can set the noise correction in the Nvidia card control panel, too, but I am not sure if that is useful. I am not sure which software uses which graphic card. I have 2 cards in that laptop.

[TreeTops]

You haven't told us your laptop's specs and your laptop screen resolution. lordsmurf's comment about some laptop screens is correct. I have a laptop that displays 1920 x1200 and all videos are sharp and clear.

[jagabo]

Try making a screen cap with the print screen key. Upload the resulting image.