我已经创建了一个生成39码条形码的测试应用程序。问题是当我在屏幕上显示条形码时,条形码会模糊或撕裂。如果我使用BitmapScalingMode
以外的其他NearestNeighbor
,则会得到模糊的条形码。当我使用NearestNeighbor
时,我得到了斜线斜线,如下所示。对角线仅在我调整窗口大小时出现。 (如果我停在正确的位置,它将停留在该位置。)图像本身不会改变大小,而是在我调整窗口大小时在屏幕上移动。
我也尝试过使用RenderOptions.EdgeMode="Aliased"
,但似乎没有任何作用...
撕裂/模糊/正确
WPF示例代码:
<Border BorderBrush="Black" BorderThickness="1" HorizontalAlignment="Center" VerticalAlignment="Top" Margin="0,50,0,0">
<Image x:Name="imgBarcode" Stretch="Fill" RenderOptions.BitmapScalingMode="HighQuality" RenderOptions.EdgeMode="Aliased" />
</Border>
图像生成:
imgBarcode.Source = loadBitmap(c.Generate(barcodeText.Text));
imgBarcode.Width = c.GetWidth();
imgBarcode.Height = c.GetHeight();
样本生成代码:
Bitmap bmp = new Bitmap(width, height);
using (Graphics gfx = Graphics.FromImage(bmp))
using (SolidBrush black = new SolidBrush(Color.Black))
using (SolidBrush white = new SolidBrush(Color.White))
{
// Start the barcode:
addBar(gfx, black, white, '*');
foreach (char c in barcode)
{
addCharacter(gfx, black, white, c);
}
// End the barcode:
addBar(gfx, black, white, '*');
}
样本矩形添加:
g.FillRectangle(white, left, top, narrow, height);
left += narrow;
加载从另一个StackOverflow问题中获取的位图:
[DllImport("gdi32")]
static extern int DeleteObject(IntPtr o);
public static BitmapSource loadBitmap(System.Drawing.Bitmap source)
{
IntPtr ip = source.GetHbitmap();
BitmapSource bs = null;
try
{
bs = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(ip,
IntPtr.Zero, Int32Rect.Empty,
System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());
}
finally
{
DeleteObject(ip);
}
return bs;
}
最佳答案
在主窗口上设置UseLayoutRounding="True"
应该可以解决此问题。
关于c# - 与最近邻居的位图会导致撕裂,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/21481954/