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-rw-r--r--Year_2/IandM/median/data/lena.pngbin0 -> 473831 bytes
-rw-r--r--Year_2/IandM/median/median.pde37
2 files changed, 37 insertions, 0 deletions
diff --git a/Year_2/IandM/median/data/lena.png b/Year_2/IandM/median/data/lena.png
new file mode 100644
index 0000000..59ef68a
--- /dev/null
+++ b/Year_2/IandM/median/data/lena.png
Binary files differ
diff --git a/Year_2/IandM/median/median.pde b/Year_2/IandM/median/median.pde
new file mode 100644
index 0000000..856e50e
--- /dev/null
+++ b/Year_2/IandM/median/median.pde
@@ -0,0 +1,37 @@
+void setup() {
+ size(512, 256);
+ PImage img = loadImage("lena.png");
+ img.resize(256, 256);
+ img.filter(GRAY);
+
+ image(img, 0, 0);
+ image(median(img, 11), 256, 0);
+}
+
+PImage median(PImage I, int n) {
+ PImage out = createImage(I.width, I.height, RGB);
+
+ int off = n/2;
+
+ for (int x = 0; x < I.width; ++x) {
+ for (int y = 0; y < I.height; ++y) {
+ PImage t = I.get(x-off, y-off, n, n);
+ float[] tarr = new float[n*n];
+ t.loadPixels();
+
+ for(int i = 0; i < t.pixels.length; ++i) {
+ tarr[i] = red(t.pixels[i]);
+ }
+
+ tarr = sort(tarr);
+ float med = tarr[(n*n)/2];
+ if((n*n)%2 == 0) {
+ med = (med+tarr[(n*n)/2-1])/2;
+ }
+
+ out.set(x, y, color(med));
+ }
+ }
+
+ return out;
+}