App where you can apply effects to the images you have on your smartphone. The effects that can be applied are passed to grayscale a color photo, apply a sepia tone, put a low pass filter or Gaussian blur to blur the photo, run filters Prewitt or Sobel to extract the edges of an image and get the negative of a photo. In addition it offers the ability to scale to a larger or smaller image (using two types of resampling of pixels: nearest neighbor, linear resampling) and equalize a photo. The his