CODEWITHSUNDEEP
c#imageimage-processing
user1427472
user1427472

Reputation: 11

low image quality when draw text on it ( C# )

I am going to create a bitmap image and draw a text but the quality of the image for printing purpose is low and the pixels are visible and are not like when i print through microsoft word.

For few reasons I don't want to use PrintDocument.

Anti Aliasing did not help me too, I have tried all image type ( Tif, bmp, png )

The following is part of the code that we use.

MyBitmap = new System.Drawing.Bitmap(GetMaxWidthOfReport(), MyActualPageSizeInfo.Height);

Mygraphics =System.Drawing.Graphics.FromImage(MyBitmap);

Mygraphics.TextContrast = 4;
Mygraphics.PageUnit = System.Drawing.GraphicsUnit.Display; 
Mygraphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias; 
Mygraphics.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality; 
Mygraphics.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceOver; 
Mygraphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality; 
Mygraphics.InterpolationMode =     System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear; 

Mygraphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;

Please let me know if you have any solution.

Upvotes: 1

Views: 2869

Answers (1)

DmitryG
DmitryG

Reputation: 17850

Please try the following approach:

var bmp = new Bitmap(300, 100, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
using(Graphics g = Graphics.FromImage(bmp)) {
    g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
    System.Windows.Forms.TextRenderer.DrawText(g, 
        @"low image quality when draw text on it", Font, new Point(10, 10), Color.Black);
}

Upvotes: 6

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