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  1. Please i need suggestions

    With this line

    Code:
    mencoder -tv driver=v4l2:device=/dev/video0:input=2:width=720:height=576:alsa:adevice=hw.0,0:amode=1:immediatemode=0:amode=1:audiorate=48000:forceaudio:fps=25 -oac lavc -ovc lavc -mpegopts format=dvd:tsaf -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9000:vqscale=3:keyint=12:aspect=4/3:vstrict=0:acodec=mp2:abitrate=384 -vf yadif,softskip,hqdn3d,harddup - mc 0 -noskip  -o output.mpg -of mpeg tv://
    there is no noise but image is too blurry imho

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  2. This other

    Code:
    mencoder -tv driver=v4l2:device=/dev/video0:input=3:width=720:height=576:alsa:adevice=hw.0,0:amode=1:immediatemode=0:amode=1:audiorate=48000:forceaudio:fps=25 -oac lavc -ovc lavc -mpegopts format=dvd:tsaf -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9000:vqscale=2:keyint=12:nr=120:vstrict=0:acodec=mp2:abitrate=384 -vf yadif,softskip,unsharp=l3x3:0.1,crop=700:430:11:67,scale=512:288,harddup -mc 0 -noskip -o output-2.mpg -of mpeg tv://
    Click image for larger version

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    Is better imho

    Any suggestion for obtain a more good image without blurry "fog" ?
    Thanks
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  3. Member
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    Mar 2011
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    Nova Scotia, Canada
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    This is just a stab in the dark ... I use an mplayer front end as my default but not in CLI or for encoding ... but you may want to try increasing vrc_buf_size to 8192Kb.

    Hopefully a real mencoder expert has an idea or 2.
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  4. Originally Posted by heyheyhey View Post
    Any suggestion for obtain a more good image without blurry "fog" ?
    Are you trying to make the image sharper or higher contrast? Or both? Downsizing usually makes the image look sharper. That's why the second image looks sharper than the first.
    Last edited by jagabo; 10th May 2014 at 11:40.
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  5. Originally Posted by jagabo View Post
    Originally Posted by heyheyhey View Post
    Any suggestion for obtain a more good image without blurry "fog" ?
    Are you trying to make the image sharper or higher contrast? Or both? Downsizing usually makes the image look sharper. That's why the second image looks sharper than the first.
    Yes,i'm interested in sharp image and clear,without "fog"
    What do you think about this?Is sharp and clean?

    Click image for larger version

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  6. All those sample images are downscaled to 512x288. Do that with your first video and it will look just about as sharp.

    To fix the "fog" increase the contrast.
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  7. Originally Posted by jagabo View Post
    All those sample images are downscaled to 512x288. Do that with your first video and it will look just about as sharp.

    To fix the "fog" increase the contrast.
    Thanks,how to increase contrast?
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  8. I see the problem of "fog" or blurry image increase if i crop and scale,when i use the standard size 720x576 (with black bands )
    the image is more clear even with hqn3d
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  9. I don't know mencoder. But surely it must have some brightness and contrast options.

    Your sample image cropped and reduced to 512x288 and contrast enhanced:

    Click image for larger version

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Size:	35.9 KB
ID:	25129
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  10. Originally Posted by jagabo View Post
    I don't know mencoder. But surely it must have some brightness and contrast options.

    Your sample image cropped and reduced to 512x288 and contrast enhanced:

    Image
    [Attachment 25129 - Click to enlarge]
    Seems better,thanks
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