How to Pixelate selected area on Canvas/ImageView Android?

Question

here is sample java code which pixelates selected area on image.

pixelate sample in java

i want to achieve similar functionality in android. searched a lot but dint find any example. any help will be appreciated.

Answer 1

1.try to search for resize/re-sampling algorithms

• like bilinear filtering ...

2.average color will do it too

• make nested for loops x0,y0 through pixelated image (small resolution)
• compute average color of the pixel area in source image (big resolution)
  • this is also done by 2 nested for loops x1,y1 through pixel area
  • just sum all R,G,B values separately
  • then divide them by number of pixels
• store resulting color to pixelated image pixel(x0,y0)

[Notes]

if your pixelated image is the same resolution (or pixels' are area of pixels)

• then instead of pixelated pixel fill entire pixel area by average color