Colour percentage in Bitmap

Question

Started without knowing about bitmap**

To get total pixels in bitmap  height*Width 
To get total white pixels Where R==255 & B==255 & G==255         


        

Answer 1

I have found myself, for viewers convenience for re usage, adding the correction(Question is updated with the answer already).

To get total pixels use image dimensions, instead of counting the looping pixels in bitlockdata.

Image page= new Image(filePath);
double nTotal = page.Width * page.Height;