Watermark Adder Using Pillow and Numpy

Examples

1. Before
   
   After in Intense mode
   
   After in Normal mode
   
2. Before
   
   After in Intense mode
   
   After in Normal mode
   

How

This was done by creating a matrix of the watermark, with a suitable size in proportion to the original image, that had the value 20 for its R G B values, so it lightens up where there would be a pixel of the watermark, then adding this matrix to the original image in the needed parts. for the places where adding 20 will cause the color value to overflow ((go over 255)), it will be replaces with -40 to darken it instead.