سلام دوست من با یه سرچ اینارو واست گیر اوردم امیدوارم کارت را بیفته
کد 1
imgPhoto = ScaleByPercent(imgPhotoVert, 50);imgPhoto.Save(WorkingDirectory + @"\images\imageresize_1.jpg", ImageFormat.Jpeg);
imgPhoto.Dispose();
....
static Image ScaleByPercent(Image imgPhoto, int Percent)
{
float nPercent = ((float)Percent/100);
int sourceWidth = imgPhoto.Width;
int sourceHeight = imgPhoto.Height;
int sourceX = 0;
int sourceY = 0;
int destX = 0;
int destY = 0;
int destWidth = (int)(sourceWidth * nPercent);
int destHeight = (int)(sourceHeight * nPercent);
Bitmap bmPhoto = new Bitmap(destWidth, destHeight,
PixelFormat.Format24bppRgb);
bmPhoto.SetResolution(imgPhoto.HorizontalResolutio n,
imgPhoto.VerticalResolution);
Graphics grPhoto = Graphics.FromImage(bmPhoto);
grPhoto.InterpolationMode = InterpolationMode.HighQualityBicubic;
grPhoto.DrawImage(imgPhoto,
new Rectangle(destX,destY,destWidth,destHeight),
new Rectangle(sourceX,sourceY,sourceWidth,sourceHeight ),
GraphicsUnit.Pixel);
grPhoto.Dispose();
return bmPhoto;
}
کد 2
imgPhoto = FixedSize(imgPhotoVert, 300, 300);
imgPhoto.Save(WorkingDirectory +
@"\images\imageresize_3.jpg", ImageFormat.Jpeg);
imgPhoto.Dispose();
....
static Image FixedSize(Image imgPhoto, int Width, int Height)
{
int sourceWidth = imgPhoto.Width;
int sourceHeight = imgPhoto.Height;
int sourceX = 0;
int sourceY = 0;
int destX = 0;
int destY = 0;
float nPercent = 0;
float nPercentW = 0;
float nPercentH = 0;
nPercentW = ((float)Width/(float)sourceWidth);
nPercentH = ((float)Height/(float)sourceHeight);
if(nPercentH < nPercentW)
{
nPercent = nPercentH;
destX = System.Convert.ToInt16((Width -
(sourceWidth * nPercent))/2);
}
else
{
nPercent = nPercentW;
destY = System.Convert.ToInt16((Height -
(sourceHeight * nPercent))/2);
}
int destWidth = (int)(sourceWidth * nPercent);
int destHeight = (int)(sourceHeight * nPercent);
Bitmap bmPhoto = new Bitmap(Width, Height,
PixelFormat.Format24bppRgb);
bmPhoto.SetResolution(imgPhoto.HorizontalResolutio n,
imgPhoto.VerticalResolution);
Graphics grPhoto = Graphics.FromImage(bmPhoto);
grPhoto.Clear(Color.Red);
grPhoto.InterpolationMode =
InterpolationMode.HighQualityBicubic;
grPhoto.DrawImage(imgPhoto,
new Rectangle(destX,destY,destWidth,destHeight),
new Rectangle(sourceX,sourceY,sourceWidth,sourceHeight ),
GraphicsUnit.Pixel);
grPhoto.Dispose();
return bmPhoto;
}
کد 3 از فروم مایکروسافت
public static byte[] ResizeFromByteArray(string fileName, int MaxSideSize, Byte[] byteArrayIn)
{
byte[] byteArray = null; // really make this an error gif
MemoryStream ms = new MemoryStream(byteArrayIn);
byteArray = CodeCampSV.Utils.ResizeFromStream(fileName, MaxSideSize, ms);
return byteArray;
}
/// <summary>
/// converts from input stream to output bytearray
/// inspired from: http://www.eggheadcafe.com/articles/20030515.asp
/// </summary>
/// <param name="ImageSavePath"></param>
/// <param name="MaxSideSize"></param>
/// <param name="Buffer"></param>
/// <returns></returns>
public static byte[] ResizeFromStream(string fileName, int MaxSideSize, Stream Buffer)
{
byte[] byteArray = null; // really make this an error gif
try
{
Bitmap bitMap = new Bitmap(Buffer);
int intOldWidth = bitMap.Width;
int intOldHeight = bitMap.Height;
int intNewWidth;
int intNewHeight;
int intMaxSide;
if (intOldWidth >= intOldHeight)
{
intMaxSide = intOldWidth;
}
else
{
intMaxSide = intOldHeight;
}
if (intMaxSide > MaxSideSize)
{
//set new width and height
double dblCoef = MaxSideSize / (double)intMaxSide;
intNewWidth = Convert.ToInt32(dblCoef * intOldWidth);
intNewHeight = Convert.ToInt32(dblCoef * intOldHeight);
}
else
{
intNewWidth = intOldWidth;
intNewHeight = intOldHeight;
}
Size ThumbNailSize = new Size(intNewWidth, intNewHeight);
System.Drawing.Image oImg = System.Drawing.Image.FromStream(Buffer);
System.Drawing.Image oThumbNail = new Bitmap
(ThumbNailSize.Width, ThumbNailSize.Height);
Graphics oGraphic = Graphics.FromImage(oThumbNail);
oGraphic.CompositingQuality = CompositingQuality.HighQuality;
oGraphic.SmoothingMode = SmoothingMode.HighQuality;
oGraphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
Rectangle oRectangle = new Rectangle
(0, 0, ThumbNailSize.Width, ThumbNailSize.Height);
oGraphic.DrawImage(oImg, oRectangle);
//string fileName = Context.Server.MapPath("~/App_Data/") + "test1.jpg";
//oThumbNail.Save(fileName, ImageFormat.Jpeg);
MemoryStream ms = new MemoryStream();
oThumbNail.Save(ms, ImageFormat.Jpeg);
byteArray = new byte[ms.Length];
ms.Position = 0;
ms.Read(byteArray, 0, Convert.ToInt32(ms.Length));
oGraphic.Dispose();
oImg.Dispose();
ms.Close();
ms.Dispose();
}
catch (Exception)
{
int newSize = MaxSideSize - 20;
Bitmap bitMap = new Bitmap(newSize, newSize);
Graphics g = Graphics.FromImage(bitMap);
g.FillRectangle(new SolidBrush(Color.Gray), new Rectangle(0, 0, newSize, newSize));
Font font = new Font("Courier", 8);
SolidBrush solidBrush = new SolidBrush(Color.Red);
g.DrawString("Failed File", font, solidBrush, 10, 5);
g.DrawString(fileName, font, solidBrush, 10, 50);
MemoryStream ms = new MemoryStream();
bitMap.Save(ms, ImageFormat.Jpeg);
byteArray = new byte[ms.Length];
ms.Position = 0;
ms.Read(byteArray, 0, Convert.ToInt32(ms.Length));
ms.Close();
ms.Dispose();
bitMap.Dispose();
solidBrush.Dispose();
g.Dispose();
font.Dispose();
}
return byteArray;
}
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