shapletsurf.rar - Function reconstructs an estimate of a surface from its surface normals by correlating the surface normals with that those of a bank of shapelet basis functions. The correlation results are summed to produce the reconstruction. The sumation of shapelet basis functions results in an implicit integration of the surface while enforcing surface continuity.
Note that the reconstruction is only valid up to a scale factor (which can be corrected for). However the reconstruction process is very robust to noise and to missing data values. Reconstructions (up to positive/negative shape ambiguity) are possible where there is an ambiguity of pi in tilt values. Low quality reconstructions are also possible with just slant, or just tilt data alone. However, if you have full gradient information you are better off with the Frankot Chellappa algorithm below. ,2012-05-28 12:11:57,下载17次
FINDENDSJUNCTIONS.rar - FINDENDSJUNCTIONS - find junctions and endings in a line/edge image
Usage: [rj, cj, re, ce] = findendsjunctions(edgeim, disp)
Arguments: edgeim - A binary image marking lines/edges in an image. It is
assumed that this is a thinned or skeleton image (or
nearly so).
disp - An optional flag 0/1 to indicate whether the edge
image should be plotted with the junctions and endings
marked. This defaults to 0.
Returns: rj, cj - Row and column coordinates of junction points in the
image.
re, ce - Row and column coordinates of end points in the
image.,2012-05-28 12:09:57,下载5次
DERIVATIVE5---7.rar - This function computes 1st and 2nd derivatives of an image using the 7-tap
coefficients given by Farid and Simoncelli. The results are significantly
more accurate than MATLAB s GRADIENT function on edges that are at angles
other than vertical or horizontal. This in turn improves gradient orientation
estimation enormously,2012-05-28 12:06:20,下载8次
lbp.rar - Linear Block codes....in this program input is image and size of block,then returns LBP s histograms
,2012-05-28 12:02:32,下载8次
monofilt.rar - MONOFILT - Apply monogenic filters to an image to obtain 2D analytic signal
Implementation of Felsberg s monogenic filters
Usage: [f, h1f, h2f, A, theta, psi] = ...
monofilt(im, nscale, minWaveLength, mult, sigmaOnf, orientWrap)
3 4 2 0.65 1/0
Arguments:
The convolutions are done via the FFT. Many of the parameters relate
to the specification of the filters in the frequency plane. ,2012-05-28 11:56:33,下载19次
watermarking.rar - CT based encryption
1. Open contourlet 5 and run aaa.m for image decomposition and for denoising
2. Open tsss and A_hidetext.m and set break point at line 109 and run
3. After selecting image ind text press F5
4. Now run H_finalextraction.m to get extracted text.,2012-05-28 11:43:10,下载25次