public static void MakeThumNail(string originalImagePath,string thumNailPath,int width, int height, string model)
{
//System.Drawing.Image originalImage = System.Drawing.Image.FromFile(originalImagePath);
Bitmap originalImage =(Bitmap)Bitmap.FromFile(originalImagePath);
int thumWidth = width;//缩略图的宽度
int thumHeight = height; //缩略图的高度
int x = 0; int y = 0;
int originalWidth = originalImage.Width;//原始图片的宽度
int originalHeight = originalImage.Height;//原始图片的高度
switch (model)
{
case "HW": //指定高宽缩放,可能变形
break;
case "W": //指定宽度,高度按照比例缩放
thumHeight = originalImage.Height * width / originalImage.Width;
break;
case "H": //指定高度,宽度按照等比例缩放
thumWidth = originalImage.Width * height / originalImage.Height;
break;
case "Cut":
if ((double)originalImage.Width / (double)originalImage.Height > (double)thumWidth / (double)thumHeight)
{
originalHeight = originalImage.Height;
originalWidth = originalImage.Height * thumWidth / thumHeight; y = 0; x = (originalImage.Width - originalWidth) / 2;
}
else
{
originalWidth = originalImage.Width;
originalHeight = originalWidth * height / thumWidth; x = 0;
y = (originalImage.Height - originalHeight) / 2;
}
break;
default:
break;
} //新建一个bmp图片
System.Drawing.Image bitmap = new System.Drawing.Bitmap(thumWidth, thumHeight); //新建一个画板
System.Drawing.Graphics graphic = System.Drawing.Graphics.FromImage(bitmap); //设置高质量查值法
graphic.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; //设置高质量,低速度呈现平滑程度
graphic.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; //清空画布并以透明背景色填充
graphic.Clear(System.Drawing.Color.Transparent); //在指定位置并且按指定大小绘制原图片的指定部分
graphic.DrawImage(originalImage, new System.Drawing.Rectangle(0, 0, thumWidth, thumHeight), new System.Drawing.Rectangle(x, y, originalWidth, originalHeight),
System.Drawing.GraphicsUnit.Pixel);
originalImage.Dispose();
graphic.Dispose();
GC.Collect();
try
{
bitmap.Save(thumNailPath, System.Drawing.Imaging.ImageFormat.Jpeg);
}
catch (Exception ex) { throw ex; }
finally { originalImage.Dispose(); bitmap.Dispose(); graphic.Dispose(); GC.Collect(); }大家帮我看下吧,什么原因呀纠结死我了...C#图片内存
{
//System.Drawing.Image originalImage = System.Drawing.Image.FromFile(originalImagePath);
Bitmap originalImage =(Bitmap)Bitmap.FromFile(originalImagePath);
int thumWidth = width;//缩略图的宽度
int thumHeight = height; //缩略图的高度
int x = 0; int y = 0;
int originalWidth = originalImage.Width;//原始图片的宽度
int originalHeight = originalImage.Height;//原始图片的高度
switch (model)
{
case "HW": //指定高宽缩放,可能变形
break;
case "W": //指定宽度,高度按照比例缩放
thumHeight = originalImage.Height * width / originalImage.Width;
break;
case "H": //指定高度,宽度按照等比例缩放
thumWidth = originalImage.Width * height / originalImage.Height;
break;
case "Cut":
if ((double)originalImage.Width / (double)originalImage.Height > (double)thumWidth / (double)thumHeight)
{
originalHeight = originalImage.Height;
originalWidth = originalImage.Height * thumWidth / thumHeight; y = 0; x = (originalImage.Width - originalWidth) / 2;
}
else
{
originalWidth = originalImage.Width;
originalHeight = originalWidth * height / thumWidth; x = 0;
y = (originalImage.Height - originalHeight) / 2;
}
break;
default:
break;
} //新建一个bmp图片
System.Drawing.Image bitmap = new System.Drawing.Bitmap(thumWidth, thumHeight); //新建一个画板
System.Drawing.Graphics graphic = System.Drawing.Graphics.FromImage(bitmap); //设置高质量查值法
graphic.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; //设置高质量,低速度呈现平滑程度
graphic.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; //清空画布并以透明背景色填充
graphic.Clear(System.Drawing.Color.Transparent); //在指定位置并且按指定大小绘制原图片的指定部分
graphic.DrawImage(originalImage, new System.Drawing.Rectangle(0, 0, thumWidth, thumHeight), new System.Drawing.Rectangle(x, y, originalWidth, originalHeight),
System.Drawing.GraphicsUnit.Pixel);
originalImage.Dispose();
graphic.Dispose();
GC.Collect();
try
{
bitmap.Save(thumNailPath, System.Drawing.Imaging.ImageFormat.Jpeg);
}
catch (Exception ex) { throw ex; }
finally { originalImage.Dispose(); bitmap.Dispose(); graphic.Dispose(); GC.Collect(); }大家帮我看下吧,什么原因呀纠结死我了...C#图片内存
使用using
及时释放内存,MackThumMail这个是自己写的吗?这里边有没有问题,或者注释掉这一行看还有没有问题
{
DirectoryInfo theFolder = new DirectoryInfo(@"Z:\Marketed");
DirectoryInfo[] dirInfo = theFolder.GetDirectories();
//遍历文件夹
foreach (DirectoryInfo NextFolder in dirInfo)
{
FileInfo[] fileInfo = NextFolder.GetFiles();
foreach (FileInfo NextFile in fileInfo)
{
if (NextFile.Extension.Equals(".jpg") || NextFile.Extension.Equals(".JPG") || NextFile.Extension.Equals(".jpge") || NextFile.Extension.Equals(".jpeg"))
{
if (NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_AZ.jpg" || NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_BO.jpg" || NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_CH.jpg" || NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_LU.jpg" || NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_NE.jpg" || NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_NI.jpg" || NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_OR.jpg" || NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_RO.jpg" || NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_SO.jpg" || NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_TO.jpg" || NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_VT.jpg" || NextFile.FullName.Substring(NextFile.FullName.Length - 7, 7) == "_XE.jpg")
{
GC.Collect();
Bitmap originalImage =(Bitmap)Bitmap.FromFile(NextFile.FullName);
int originalHeight = originalImage.Size.Height;//原始图片的宽度
int originalWidth = originalImage.Size.Width;//原始图片的高度
originalImage.Dispose();
GC.Collect();
if (originalWidth == 400 && originalHeight == 400)
{
int index = NextFile.FullName.LastIndexOf(".");
int g = NextFile.Name.LastIndexOf(".");
int h = NextFile.Name.LastIndexOf("_");
Directory.CreateDirectory("C:\\product\\" + NextFolder.Name + "");
MakeThumNail(NextFile.FullName, "C:\\product\\" + NextFolder.Name + "\\" + NextFile.Name.Substring(0, g) + ".jpg", 400, 400, "W");
}
else
{ }
originalImage.Dispose();
GC.Collect();
}
}
}
Thread.Sleep(1000);
}这个代码要怎么改写呢???
不知这样理解是否有误,有待你的测试。
这样也不行呀还是报originalImage=(Bitmap)Bitmap.FromFile(NextFile.FullName);这句话内存不足啊
你的问题真的很怪异,不如先“清理解决方案”然后“从新生成解决方案”看下如何。