In this article I will show you how to convert picture to black and white using c#. You need to pass the bitmap image to the following function. It has code,It will take the average of RGB values, in order to get the appropriate gray scale value and returns the result as bitmap object.
C# image manipulation:
public static Bitmap SetGrayscale(Bitmap btmap)
{
Bitmap temp = (Bitmap)btmap;
Bitmap bmap = (Bitmap)temp.Clone();
Color c;
for (int i = 0; i < bmap.Width; i++)
{
for (int j = 0; j < bmap.Height; j++)
{
c = bmap.GetPixel(i, j);
byte gray = (byte)(.299 * c.R + .587 * c.G +.114 * c.B);
bmap.SetPixel(i, j, Color.FromArgb(gray, gray, gray));
}
}
return (Bitmap)bmap.Clone(); }
Create your own grayscale image convertor using this above C# code.
Post your comments / questions
Recent Article
- How to programmatically modifying the AppSetting value in web.config using c#?
- TypeError [ERR_INVALID_CALLBACK]: Callback must be a function. Received undefined
- How to calculate the age from jQuery ui datepicker using c#?
- How to calculate days difference between two dates in c#?
- Changing date format in jQuery ui datepicker
- How to set value to nicedit textarea using jQuery?
- How to load data from json file in angular?
- cannot find module consider using '--resolvejsonmodule' to import module with json extension angular
Related Article