[函數名稱]
圖像平移變換函數TranslationProcess(WriteableBitmap
src,int x,int
y)
[函數代碼]
///<summary>
///
Translation process.
///</summary>
///<param
name="src">Source image.</param>
name="x">Translate value of x.</param>
name="y">Translate value of y.</param>
///<returns></returns>
publicstaticWriteableBitmap
TranslationProcess(WriteableBitmap src,int
x,int y)////18平移變換
{
if(src!=null
)
{
int
w = src.PixelWidth;
h = src.PixelHeight;
WriteableBitmap
translateImage =newWriteableBitmap(w,
h);
byte[]
temp = src.PixelBuffer.ToArray();
tempMask =newbyte[w
* h * 4];
for
(int j = 0; j < h; j++)
for
(int i = 0; i < w; i ++)
{
if
(i + x < 0 || i + x >= w || j + y < 0 || j + y >= h)
{
tempMask[i * 4 + j * w * 4] = (byte)0;
tempMask[i * 4 + 1 + j * w * 4] = (byte)0;
tempMask[i * 4 + 2 + j * w * 4] = (byte)0;
}
else
tempMask[i * 4 + j * w * 4] = (byte)(temp[(i
+ x) * 4 + (j + y) * w * 4]);
tempMask[i * 4 + 1 + j * w * 4] = (byte)(temp[(i
+ x) * 4 + 1 + (j + y) * w * 4]);
tempMask[i * 4 + 2 + j * w * 4] = (byte)(temp[(i
+ x) * 4 + 2 + (j + y) * w * 4]);
tempMask[i * 4 + 3 + j * w * 4] = (byte)(temp[(i
+ x) * 4 + 3 + (j + y) * w * 4]);
}
}
Stream
sTemp = translateImage.PixelBuffer.AsStream();
sTemp.Seek(0,
SeekOrigin.Begin);
sTemp.Write(tempMask, 0, w * 4 * h);
return
translateImage;
else
returnnull;
}
}
[圖像效果]
