Image Filter Art---wave filter

Wave Filter Wave filterWater filter is a coordinate transformation to simulate the effect of water waves, so that the image presents the effect of water wave. This filter has an adjustable parameter: the degree of distortion of the water waves. The code is as follows;//       ///       //Wave filter       ///  &NB Sp    /// source image.       /// the degree of wave,0-100.      &NB Sp  the result image.        Private Bitmap wavefilterprocess (Bitmap srcbitmap, int degree) &nbsp ;       {            Bitmap a = new Bitmap (srcbitmap);      &NBS P     int w = a.width;            int h = a.height;        &NBSP ;   degree = degree * 32/100;            degree = Math.max (0, Math.min (+ degree)); &nb Sp           BITMAP DST = new Bitmap (w, h);            System.Drawing. Imaging.bitmapdata srcdata = a.lockbits (new Rectangle (0, 0, W, h), System.draWing. Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format32bppArgb);            System.Drawing.Imaging.BitmapData dstdata = DST. LockBits (New Rectangle (0, 0, W, h), System.Drawing.Imaging.ImageLockMode.ReadWrite, SYSTEM.DRAWING.IMAGING.PIXELFORMAT.FORMAT32BPPARGB);            unsafe            {                byte* pIn = (byte*) srcData.Scan0.ToPo Inter ();                byte* pOut = (byte*) dstData.Scan0.ToPointer ();  &nbsp ;             byte* p = null;                int Strid E = srcdata.stride-w * 4;                int newx = 0, Newy = 0;    &N Bsp           Double PI2 = Math.PI * 2.0;                  FOR (int y = 0; y < h; y++)                 {          &N Bsp         for (int x = 0; x < W; + +)                   and nbsp {                        NEWX = (int) (degree * Math.sin (PI2 * y/128.0) + x;                        newy = (int) (degree * Math.Cos (PI2 * x/128.0)) + y;                        NEWX = Math.min (w-1, Math.max (0, newx));                        NEW Y = Math.min (h-1, Math.max (0, Newy));                        p = pIn + newy * srcdata.stride + newx * 4;                      and nbsp POUT[0] = (byte) p[0];                        pout[1] = (byte) p[1];&nb Sp                       pout[2] = (byte) p[2];      &NB Sp                 pout[3] = (byte) 255;                                 &NBSP ;           POut + + 4;                   }                    POut + stride;            & nbsp  }                a.unlockbits (srcdata);          & nbsp     DST. Unlockbits (dstdata);           }            return DST;
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Wave Filter

Finally put a complete C # version of the program demo:http://www.zealpixel.com/thread-59-1-1.html

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Image Filter Art---wave filter