yuvycsnoise (1)

yuvycsnoise [-t] [-mt|b|i|c] [-S MIN] [-T ERRT[,MAXT]] [-B ERRB[,MAXB]] [-I ERRI[,MAXI]] [-C ERRC[,MAXC]]

If video capture hardware has only a poor Y/C separator, at vertical stripe (especially red/blue), noises appear which seem checker flag and bright/dark invert per 1 frame. yuvycsnoise reduces noises of this type.

yuvycsnoise accepts the following options:

-t

test. Instead of noise reduction, noises will be marked as black pixel.

-mMETHOD

(default: tbic).

Select method. METHOD is string in which each character mean method. t: 'triframe' method of luma noise reduction. b: 'biframe' method of luma noise reduction. i: 'infield' method of luma noise reduction. c: chroma noise reduction. use 3 frames as 'triframe'.

-SMIN

(default: 4).

Set minimum threshold of luma/chroma difference which is treated as noise.

-TERRT[,MAXT]

(default: 32,255).

-BERRB[,MAXB]

(default: 32,255).

-IERRI[,MAXI]

(default: 16,255).

-CERRC[,MAXC]

(default: 12,255).

Set threshold of luma/chroma difference of each methods. ERRx is maximum error of luma/chroma of pixels around target pixel, which should be same if target contain noise. MAXx is maximum threshold of luma/chroma difference of target pixel from luma/chroma after noise reduced.

yuvycsnoise was written by Kawamata/Hitoshi.

If you have questions, remarks, problems or you just want to contact the developers, the main mailing list for the MJPEG-tools is:

  [email protected]

For more info, see our website at

http://mjpeg.sourceforge.net/

mjpegtools(1)