Image Filter Art---oilpaint oil painting filter

oilpaint oil Painting filterImage painting effect is actually the edge of the image to create a hazy, atomized effect, at the same time, will be a certain edge blur, so that the image as a whole to see the pixels and pixels like a fog randomly presented. The algorithm process is as follows: Assume that the current pixel isP (x, y), his random position wasPd (Dx,dy), then the algorithm formula is as follows:

whereK (v) is a positive number of random numberswith a maximum value of less than v , andv is the atomization threshold,the greater thev value, The more obvious the atomization degree, conversely, the smaller the atomization degree,thev=0 , the image has no change effect.

The core code is as follows:

<summary>

Mosaic filter.

</summary>

<param name= "src" >source image.</param>

<param name= "BlockSize" >the size of Mosaic effect.</param>

<returns>resullt image.</returns>

Public Bitmap oilpaintfilter (Bitmap SRC, int. intensity)

{

Bitmap Srcbitmap = new Bitmap (SRC);

int w = srcbitmap.width;

int h = srcbitmap.height;

System.Drawing.Imaging.BitmapData srcdata = srcbitmap.lockbits (new Rectangle (0, 0, W, h), System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format32bppArgb);

IntPtr ptr = srcdata.scan0;

int bytes = h * srcdata.stride;

byte[] srcvalues = new Byte[bytes];

System.Runtime.InteropServices.Marshal.Copy (PTR, srcvalues, 0, bytes);

Byte[] Tempvalues = (byte[]) srcvalues.clone ();

int stride = Srcdata.stride;

Random ran = new random ();

int k = 0;

int dx = 0;

int dy = 0;

for (int j = 0; J < H; j + +)

{

for (int i = 0; i < W; i++)

{

K = ran. Next (intensity);

DX = (i + k) >= W? W-1: (i + K);

DY = (j + k) >= h? H-1: (j + k);

Tempvalues[i * 4 + J * W * 4] = (byte) srcvalues[dx * 4 + dy * w * 4];

Tempvalues[i * 4 + 1 + J * W * 4] = (byte) SRCVALUES[DX * 4 + 1 + dy * w * 4];

Tempvalues[i * 4 + 2 + J * W * 4] = (byte) SRCVALUES[DX * 4 + 2 + dy * w * 4];

}

}

Srcvalues = (byte[]) tempvalues.clone ();

System.Runtime.InteropServices.Marshal.Copy (srcvalues, 0, ptr, bytes);

Srcbitmap.unlockbits (Srcdata);

return srcbitmap;

}

Image oil Painting filter effect is as follows:

Original

Oilpaint Filter Effect

Finally, put a complete C # version of the program demo download Link: http://www.zealpixel.com/forum.php?mod=viewthread&tid=52&extra=page%3D1

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Image Filter Art---oilpaint oil painting filter