From 49805bf316bd9ed1a8dcbd829a0c28b9399d1ff3 Mon Sep 17 00:00:00 2001
From: Santo Cariotti <santo@dcariotti.me>
Date: Tue, 23 Feb 2021 19:07:56 +0100
Subject: i&m: exercises of 23rd feb

---
 Year_2/IandM/02232021_2/Exercise2.pde | 59 +++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100755 Year_2/IandM/02232021_2/Exercise2.pde

(limited to 'Year_2/IandM/02232021_2/Exercise2.pde')

diff --git a/Year_2/IandM/02232021_2/Exercise2.pde b/Year_2/IandM/02232021_2/Exercise2.pde
new file mode 100755
index 0000000..28d29b4
--- /dev/null
+++ b/Year_2/IandM/02232021_2/Exercise2.pde
@@ -0,0 +1,59 @@
+void setup() {
+  size(768, 256);
+  PImage img = loadImage("monkey.jpg");
+  img.resize(256, 256);
+  img.filter(GRAY);
+
+  image(img, 0, 0);
+
+  PImage revimg = rev(img);
+  image(revimg, 256, 0);
+  
+  int random_number = (int)random(5, 15); // [5, 15)
+  image(mass(revimg, random_number), 512, 0);
+}
+
+PImage rev(PImage I) {
+  PImage out = I.copy();
+  int t;
+
+  for (int row = 0; row < out.width; ++row) {
+    for (int i = 0, j = out.width-1; i < out.width/2; ++i, --j) {
+      t = out.get(i, row);
+      out.set(i, row, out.get(j, row));
+      out.set(j, row, t);
+    }
+  }
+
+  // yellow pixels
+  for (int i = 0; i < out.width; ++i)
+    out.set(i, i, color(#EFFC38));
+
+
+  return out;
+}
+
+PImage mass(PImage I, int n) {
+  PImage out = createImage(I.width, I.height, RGB);
+  
+  // image and array aux
+  PImage tmp;
+  float[] tarr = new float[n*n];
+  
+  int off = n/2;
+  
+  for(int i = 0; i < out.width; ++i) {
+    for(int j = 0; j < out.height; ++j) {
+      tmp = I.get(i-off, j-off, n, n);
+      
+      tmp.loadPixels();
+      for(int k = 0; k < tmp.pixels.length; ++k) {
+        tarr[k] = red(tmp.pixels[k]);
+      }
+        
+      out.set(i, j, color(max(tarr)));
+    }
+  }
+  
+  return out;
+}
-- 
cgit v1.2.3-18-g5258