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oledoe
1st December 2004, 13:11
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wavelet2dnr.txt

wavelet2DNR(level=5,func=0,threshold1=25,threshold2=60,threshold3=70,threshold4=70,threshold5=70,type=0)

level: It is the number of times of analysis.
Please set up in 0-4.

func: The plain which carries out wavelet deployment is set up.
0: Luminosity
1:Cb
2:Cr

threshold 1-5:
It is a 閾 value over each level.
An outline will become thin if it raises too much. It fades and is spread around. Although it is hardly, since it becomes the textures carried out smoothly, let's make it moderate. There is no maximum.

type:
It is the kind of MotherWavelet.
0: Haar (a part for 2Block)
1: N=2, Daubechies of (a part for 4Block)
2: N=3, Daubechies of (a part for 6Block)
3: N=2, Coiflet of (a part for 6Block)
4: N=4, Daubechies of (a part for 8Block)
5: N=6, Daubechies (part for 12Block)
It becomes so heavy that the numerical value of is large. moreover, unlike NR using Wavelet degeneration, the technique of NR itself is traditional the view seen also by Wavelet of Haar for 2D NR -- it hardly becomes amusing However, a level 4 and the 閾 value of 5 neighborhoods A block noise can be seen, while using Haar, if it is made a very big value. In this case, type Please enlarge a value.

Description : It is 2D NR using the sub band decomposition by Wavelet conversion which can set up a 閾 value for every frequency. the side effects generated in WaveletReducer since it is not operated [ as opposed to / a Wavelet deployment value / especially ] -- all hardly occur However, since the NR technique is usual moving average type 2D NR, the energy which increased by the noise signal does not disappear. Although a noise ingredient melts into the surroundings, since the signal of the part has increased, it changes appearance with NR using Wavelet degeneration. But since a noise signal cannot necessarily be completely omitted by NR using the usual Wavelet degeneration, it may seldom change. Since it has the function in which effect can be adjusted for every frequency which is one of the features of NR using Wavelet, one to use Wavelet can be achieved now. The algorithm of used 2D NR performs a ??value check about 8 blocks the surroundings of an observing point first, and the absolute value of a difference with an observing point counts ten or more significant work among the things within a ?ン定閾 value. It is here. The absolute values of a difference with an observing point are ten or more things. Effective sample total within the 閾 value in /8 blocks When a の value is 2/3 or more, 1 1 11 0.3 1 / 8.31 1 1 The procession to say is used. Moreover, when the value like the point is 1/3 or less, it is. 1 1 11 2 1 / 101 1 1 The procession to say is used. In the cases of other than the above 1 1 11 1 1 / 91 1 1 It comes to use the procession to say. Here, although there is an absolute value of a difference with an observing point or more with ten, a basis is not in the number of this 10 yet. Adjustment of this value may be attained in the future. Or it may come to calculate the optimal value by calculation.

Future view etc. : It is one of fusion experiments with 2D NR and Wavelet. it is this NR 自体ま -- although it is a thing with the room of research, is it the grade of being as accelerate たり [, and ]? [ that about two additional parameters increase at most ] But since it thinks that side effects are NR of ?_な目 comparatively, as for the man that have too much [ a CPU power ] and it is unavoidable, using may also be good.

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oledoe
1st December 2004, 23:11
To the administrator:

Please delete this thread.
I posted another thread by mistake.
Thanks.

Fizick
2nd December 2004, 17:41
I think, you can delete it yourself.
But firstly copy this text wavelet2dnr.txt to that thread!:)