Bitmap img = new Bitmap(\"C:\\\\temp\\\\images\\\\file.jpg\");
img.PixelFormat is Format24bppRgb
when I am doing deep copy
Bit
Just found solution instead new Bitmap(img) use Bitmap img2 = (Bitmap) img.Clone(); don't know it is the right solution, but it do the job.
Bitmap img2 = (Bitmap) img.Clone();