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我有以下代碼來調整單色圖像(因此像素值是0 [黑色]或255 [白色])用下面的代碼調整大小在C#單色圖像
Bitmap ResizedCharImage = new Bitmap(newwidth, newheight);
using (Graphics g = Graphics.FromImage((Image)ResizedCharImage))
{
g.CompositingQuality = CompositingQuality.HighQuality;
g.InterpolationMode = InterpolationMode.HighQualityBilinear;
g.SmoothingMode = SmoothingMode.HighQuality;
g.PixelOffsetMode = PixelOffsetMode.HighQuality;
g.DrawImage(CharBitmap, new Rectangle(0, 0, newwidth, newheight),
new Rectangle(0, 0, CharBitmap.Width, CharBitmap.Height), GraphicsUnit.Pixel);
}
,我的問題在調整大小後(我正在放大圖像),某些像素值變爲254,253,1,2等等(所以不是單色的)。我需要這樣做不會發生。這是可能的,也許通過改變一個Graphins屬性?