allow pick and flip with open cam

src/bin/main.rs

@@ -27,7 +27,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         std::process::exit(1);
     }
 
-    // Check if the whitening flag is set
+    // Check if the quick flag is set
     let quick = args.contains(&String::from("-q"));
 
     let camera_index: usize = args[1].parse().expect("Failed to parse camera index as a number");
@@ -74,20 +74,23 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
             let grayscale_data1 = frame_to_grayscale(&data1);
 
-            if !ocelli.is_covered(&grayscale_data1, 50) {
-
-                let entropy: Vec<u8>;
+            let mut entropy: Vec<u8> = [0].to_vec();
             
             if quick {
                 // Quicker capture using Pick and Flip
                 entropy = ocelli.whiten(&ocelli.pick_and_flip(&grayscale_data1, frame_count as usize));
             } else {
+                if ocelli.is_covered(&grayscale_data1, 50) {
                     // Capture second frame
                     let (data2, _) = stream.next().expect("Failed to capture second frame");
                     let grayscale_data2 = frame_to_grayscale(&data2);
 
                     // Generate entropy using chop_and_tack
                     entropy = ocelli.chop_and_tack(&grayscale_data1, &grayscale_data2, format.width as usize, 30);
+                } else {
+                    println!("Camera is not covered. Please cover the camera.");
+                    frame_count = 0;
+                }
             }
 
             let shannon_entropy = ocelli.shannon(&entropy);
@@ -103,10 +106,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             } else {
                 println!("Rejected entropy for frame {} (Shannon entropy: {:.3})", frame_count, shannon_entropy);
             }
-            } else {
-                println!("Camera is not covered. Please cover the camera.");
-                frame_count = 0;
-            }
+            
         }
     }