We'll ilustrate here some examples of emplementation of mask composition of images. There are several applications that use this facility or concept. We will illustrate the use of it with an ultrasound image. Shown below is the ultasound image and we wish to compute the statistics of it. Shown below are the validity mask and the image with the validity mask segment. . .
Validity mask . . . . . . . . . .
The image below is an example of digital manipulation of a photograph. We may see one person missing at the image on the right comparatively ty the left one. The images below are an next example of digital manipulation of a photograph. The photograph of the bluebird on the left is the original.