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raised thresholds

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randogoth 2024-12-30 22:35:30 +02:00
parent 424acf0858
commit 37df6fc27e
1 changed files with 40 additions and 38 deletions
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78
src/bin/main.rs
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@ -60,51 +60,53 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
let ocelli = Ocelli; let ocelli = Ocelli;
let mut total_entropy = Vec::new(); let mut total_entropy = Vec::new();
let start_time = Instant::now(); let start_time = Instant::now();
let shannon_threshold = 4.0; let shannon_threshold = 7.9;
let mut frame_count = 0; let mut frame_count = 0;
while total_entropy.len() < length { while total_entropy.len() < length {
// Capture first frame // Capture first frame
let (data1, _) = stream.next().expect("Failed to capture frame"); let (data1, _) = stream.next().expect("Failed to capture frame");
let grayscale_data1 = frame_to_grayscale(&data1);
if ocelli.is_covered(&grayscale_data1, 50) { // Skip the first 30 frames
// Skip the first 10 frames if frame_count <= 30 {
while frame_count < 10 { frame_count += 1;
let _ = stream.next().expect("Failed to capture frame");
frame_count += 1;
}
let entropy: Vec<u8>;
if quick {
// Quicker capture using Pick and Flip
entropy = ocelli.pick_and_flip(&grayscale_data1, frame_count as usize);
} else {
// 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);
}
let shannon_entropy = ocelli.shannon(&entropy);
if shannon_entropy >= shannon_threshold {
total_entropy.extend(entropy);
println!(
"Collected {} of {} bytes of entropy (Shannon entropy: {:.3})",
total_entropy.len(),
length,
shannon_entropy
);
} else {
println!("Rejected entropy (Shannon entropy: {:.3})", shannon_entropy);
}
} else { } else {
println!("Camera is not covered. Please cover the camera.");
frame_count = 0; let grayscale_data1 = frame_to_grayscale(&data1);
if !ocelli.is_covered(&grayscale_data1, 50) {
let entropy: Vec<u8>;
if quick {
// Quicker capture using Pick and Flip
entropy = ocelli.whiten(&ocelli.pick_and_flip(&grayscale_data1, frame_count as usize));
} else {
// 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);
}
let shannon_entropy = ocelli.shannon(&entropy);
if shannon_entropy >= shannon_threshold {
total_entropy.extend(entropy);
println!(
"Collected {} of {} bytes of entropy (Shannon entropy: {:.3})",
total_entropy.len(),
length,
shannon_entropy
);
} 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;
}
} }
} }