title: How to merge different images in one
body: <p>I'm developing an Android application I have to implement a function that must  "merge" two images, but following certain rules.</p>
  
  <p>The main image is a representation of a car where which each part (like hood, windshield) are colored differently, I have do this to map the car.</p>
  
  <p>The other images represent each part of the main images, such as hood, windshield So what that I what to do is "simple" I need to overlap / merge each single part of the car with the main image.</p>
  
  <p>Keep in mind that the images of each part are scaled 1: 1 compared to the main image.</p>
  
  <p>The main image is mapped colors, so each to each part can be associated with a color.</p>
  
  <p>The only question is how to "merge" different images with the main</p>