RGB to GrayScale - aforge 


// create grayscale filter (BT709)
Grayscale filter = new Grayscale( 0.2125, 0.7154, 0.0721 );
// apply the filter
Bitmap grayImage = filter.Apply( image );

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Draw Circle on PictureBox when Button Click - Winform

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  using  System; using  System.Drawing; using  System.Windows.Forms; using  AForge; using  AForge.Imaging; using  AForge.Imaging.Filters; using  AForge.Imaging.ComplexFilters; namespace  tt {      class   MainClass     {          public   static   void   Main ( string []  args )         {              //  load image              Bitmap   image  = AForge.Imaging. Image . FromFile ( @" /Users/kerb/rose.jpg " );              //  create complex image              ComplexImage   complexImage  =...
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