My Name is Tianyi Zhao, MS student of student in the Department of Computer Science at Boston University.
Use Average value of original image at 3 channels as pixel value of gray-scale image.
Blur Image of Gray-Scale Image:
Average of 8 neighbor value a pixel and value of the pixel itself which is choosen from row2...rown-1 and col2...colm-1 of gray-scale image. n indicate total row number of gray-scale image, m indicate total column number of gray-scale image. Repeat this operation 10 times.
White Hair Image of Gray-Scale Image:
Make hair of person of gray-scale image become white. Determine the approximate aread of hair region. Set a threshold of gray-scale image, determine whether to change pixel value. When change the pixel value, new value = 255 - threshold + original value), which can reserve color information.