Now we can iterate through an image

src/main.rs

@@ -1,3 +1,19 @@
-fn main() {
-    println!("Hello, world!");
+use image::io::Reader as ImageReader;
+
+fn main() -> anyhow::Result<()> {
+    if let Some(filename) = std::env::args().nth(1) {
+        println!("{}", filename);
+
+        let img = ImageReader::open(filename)?.decode()?;
+        let rimage = img.to_rgb8(); 
+
+        
+        for px in rimage.pixels() {
+            println!("[{}, {}, {}]", px[0], px[1], px[2]);
+        }
+    } else {
+        println!("Please provide a valid filename.");
+    }
+
+    Ok(())
 }