这是我下载和保存图片的代码:
using (var webClient = new WebClient())
{
byte[] data = webClient.DownloadData(string.Format("http://muserver.com/{0}", url.TrimStart('/')));
var memory = new MemoryStream(data);
var image = System.Drawing.Image.FromStream(memory);
image.Save(pathOriginal, ImageFormat.Png);
ResizeImageFixedWidth(image, 350).Save(pathDetails, ImageFormat.Png);
}
public static System.Drawing.Image ResizeImageFixedWidth(System.Drawing.Image imgToResize, int width)
{
int sourceWidth = imgToResize.Width;
if (sourceWidth > width)
{
int sourceHeight = imgToResize.Height;
float nPercent = ((float)width / (float)sourceWidth);
int destWidth = (int)(sourceWidth * nPercent);
int destHeight = (int)(sourceHeight * nPercent);
Bitmap b = new Bitmap(destWidth, destHeight);
Graphics g = Graphics.FromImage((System.Drawing.Image)b);
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(imgToResize, 0, 0, destWidth, destHeight);
g.Dispose();
return (System.Drawing.Image)b;
}
else
{
return imgToResize;
}
}
ResizeImageFixedWidth(0是我用来调整图像大小但保存宽高比的方法。我想做的是:将相同的图像保存在2个文件夹中,一次保持原始大小,一次保存宽度为350. ResizeImageFixedWidth (图像,350)返回一个图像,它没有崩溃。但是在Save()方法它崩溃,说我没有记忆。重要的是要注意我执行相同的方法大约100次,对于很多图像我做错了什么?
答案 0 :(得分:0)
将语句包装到using语句中,以便自动关闭和处理流。
using (MemoryStream stream = new MemoryStream(data)
{
using(Image myImage = Image.FromStream(stream))
{
//do stuff
}
}