Faster version of SetPixel

If you are doing something like brightness, sharpness, monochrome etc to be applied to image then you can use color matrix, much faster than setpixel function.

 

Reference for Color Matrix

https://www.c-sharpcorner.com/article/color-transformations-and-the-color-matrix/#:~:text=These%20values%20are%20used%20in,matrix%20on%20a%20color%20vector.