# Changing the PImage colour if images overlap

**URL:** <https://discourse.processing.org/t/changing-the-pimage-colour-if-images-overlap/14817>\
**Category:** Libraries\
**Created:** [October 20, 2019, 8:39am UTC](https://discourse.processing.org/t/changing-the-pimage-colour-if-images-overlap/14817 "2019-10-20T08:39:26Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![DatSoi](https://avatars.discourse-cdn.com/v4/letter/d/5daacb/32.png) [@DatSoi](https://discourse.processing.org/u/DatSoi)\
**Post date:** [October 20, 2019, 8:39am UTC](https://discourse.processing.org/t/changing-the-pimage-colour-if-images-overlap/14817/1 "2019-10-20T08:39:26Z")

</div>

How do i change the tint() of an PImage if the detected face is next to the PImage.

 ![another%20one](https://canada1.discourse-cdn.com/flex036/uploads/processingfoundation1/original/2X/f/f0ef749389dd3771e1fca60d650849b05ccd2dea.png)

```auto
import gab.opencv.*;
import processing.video.*;
import java.awt.*;

PImage img;
PImage background;
PImage imgCoral;

color colCoral;

Capture video;
OpenCV opencv;

void setup() {
size(960, 540);
colorMode (HSB);

frameRate(60);
  
  img = loadImage ("photo1.png");
    
  background=loadImage ("sea1.png");
  imgCoral = loadImage ("coral1.png");
  
  video = new Capture(this, 640, 480);
  opencv = new OpenCV(this, 640, 480);
  opencv.loadCascade(OpenCV.CASCADE_FRONTALFACE); 
  
  video.start();
  
}

void draw() {
  background (background);
  tint(50);
  image(imgCoral,0,0);
  tint(255,255);
  scale(1);
  opencv.loadImage(video);
       
  noFill();
  stroke(0, 0, 0);
  strokeWeight(3);
  Rectangle[] faces = opencv.detect();
  println(faces.length);

  for (int i = 0; i < faces.length; i++) {
    println(faces[i].x + "," + faces[i].y);
    image(img, faces[i].x, faces[i].y, faces[i].width,faces[i].height);

  }
  
}

void captureEvent(Capture c) {
  c.read();
}

``
```