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<H3><A NAME="SECTION0020921700000000000000">
DIRECT/WAVE</A>
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<DIV ALIGN="CENTER">
DIRECT/WAVE Imag_In Psf Imag_Out [Nb_Scales] [<IMG
WIDTH="26" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img887.gif"
ALT="$\gamma_1$">,<IMG
WIDTH="27" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img888.gif"
ALT="$\gamma_2$">,<IMG
WIDTH="26" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img889.gif"
ALT="$\gamma_3$">,...]
</DIV>
Deconvolves an image by the method described in section
<A HREF="node338.html#direct_dec">14.8.3</A>. <IMG
WIDTH="26" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img890.gif"
ALT="$\gamma_j$">
are generally chosen such that
<!-- MATH: $\gamma_j
< \gamma_{j+1}$ -->
<IMG
WIDTH="96" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img891.gif"
ALT="$\gamma_j
< \gamma_{j+1}$">
because the regularization has to be stronger on high
frequencies. The deconvolution is done by a division in the Fourier
space. If all <IMG
WIDTH="26" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img892.gif"
ALT="$\gamma_j$">
equal to 0, it corresponds to the Fourier
quotient method. <EM>Nb_Scales</EM> defines the number of scales used
in the wavelet transform. <EM>Imag_In</EM> is the file name of the image
to deconvolve, <EM>Psf</EM> is the file name of the point spread
function, and <EM>Imag_Out</EM> is the file name of the deconvolved
image.
<P>
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<ADDRESS>
<I>Petra Nass</I>
<BR><I>1999-06-15</I>
</ADDRESS>
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