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Another question: Converting square pixels into round pixels.

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Earthling2000
Member


Joined: 23 May 2008
Location: Pakistan

Post Posted: Nov 20, 2009 09:51 Posts Comp View users profile Send private message Reply with quote

"I tried to post this question earlier but my browser crashed while I was typing the question. And I accidentally pushed the submit button while trying to save my post. I apologize to the admin if that post was actually submitted."

Here is the question.

Quote:
Hi,
I am not an expert at video work. I was just wondering about how to convert square video pixels into round pixels. I have tried many video encoders and a few video filter programs, but so far haven't found any software which produces round video pixels.
Here's an example
I want to change the pixels from this…



Into this…



I would also like to know if there is a way of removing the artifacts on compressed videos apart from applying the deinterlacing or deblocking filters. I have applied those filters as well as the resize filter to to my compressed videos in Virtualdub. But the square pixels still seem to be creating artifacts on the videos.

Please help.


Baldrick
Administrator


Joined: 09 Aug 2000
Location: Sweden

Post Posted: Nov 20, 2009 10:51 Posts Comp View users profile Send private message Reply with quote

I changed your post so it shows the images.

You can't do much with such bad video source...


Earthling2000
Member


Joined: 23 May 2008
Location: Pakistan

Post Posted: Nov 20, 2009 11:10 Posts Comp View users profile Send private message Reply with quote

I know Baldrick. But that video is not really the source. And I sharpened that video a lot before taking the snapshot. So that the square pixels would become visible. It was only an example, so there is nothing to worry about. I would just like to know about how to convert the square pixels of a video into round pixels like those in the second picture. I would really appreciate your help.
Thanks in advance.


jagabo
Member


Joined: 09 Dec 2005
Location: none

Post Posted: Nov 20, 2009 11:38 Posts Comp View users profile Send private message Reply with quote

That's not "round" pixels. It's a paint effect. Oil paint, pointillist, something like that. Many image editors and video editors have such filters.

Gavino
Member


Joined: 10 Jul 2009
Location: Spain

Post Posted: Nov 20, 2009 12:30 Posts Comp View users profile Send private message Reply with quote

ROTFL.

With all this talk about 'square pixels' and 'non-square pixels', it was only a matter of time before someone asked for round pixels...


poisondeathray
Member


Joined: 07 Sep 2007
Location: Canada

Post Posted: Nov 20, 2009 12:37 Posts View users profile Send private message Reply with quote

Earthling2000 - The big square blocks in the 1st picture aren't pixels. Those are macroblocks from inadequate compression probably from a MPEG2 source. Each block is actually composed of 16x16 pixels.

In order to convert something like #1 into #2, you would need a better quality source. You could try deblocking filter first, then one of the effects jagabo mentioned, but it won't look very good unless you start with a decent quality source


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