private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
if(!Page.IsPostBack)
{
ChangImg();
}
}
private void ChangImg()
{
string strFilename=string.Empty;
System.Drawing.Image oldImg;
ImageAttributes ia=new ImageAttributes();
strFilename = Server.MapPath("img/"+Request.QueryString["filename"]);
oldImg = System.Drawing.Image.FromFile(strFilename);
Graphics g = System.Drawing.Graphics.FromImage(oldImg);
亮度和对比度
if(Request.QueryString["ring"]!=null)
{
//旋转
}
oldImg.Save(Response.OutputStream,System.Drawing.Imaging.ImageFormat.Jpeg);
g.Dispose();
ia.Dispose();
oldImg.Dispose();
}
private System.Drawing.Image ChangImgBrCon(System.Drawing.Image oldImg,System.Drawing.Image newImg)
{
return null;
}
private float[][] Multiply(float[][] f1, float[][] f2)
{
//合并
float[][] X = new float[5][];
for (int d = 0; d < 5; d++)
X[d] = new float[5];
int size = 5;
float[] column = new float[5];
for (int j = 0; j < 5; j++)
{
for (int k = 0; k < 5; k++)
{
column[k] = f1[k][j];
}
for (int i = 0; i < 5; i++)
{
float[] row = f2[i];
float s = 0;
for (int k = 0; k < size; k++)
{
s += row[k] * column[k];
}
X[i][j] = s;
}
}
return X;
}