diff --git a/src/main.rs b/src/main.rs
index 1c10200..42dc5e7 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -257,43 +257,51 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 }
 
 fn apply_image_parameters(lr: *mut libraw_data_t, args: &Args) {
+    if lr.is_null() {
+        eprintln!("Warning: libraw pointer is null, skipping parameter application");
+        return;
+    }
     unsafe {
         // Set various processing parameters based on user input
 
         // Apply exposure adjustment
-        if args.exposure != 0.0 {
+        if args.exposure != 0.0 && !lr.is_null() {
             libraw_set_bright(lr, args.exposure);
         }
 
         // Apply contrast (using highlight parameters for demonstration)
-        if args.contrast != 0 {
+        if args.contrast != 0 && !lr.is_null() {
             let value = args.contrast.min(100).max(-100) as c_int;
             libraw_set_highlight(lr, value);
         }
 
         // Apply highlights adjustment
-        if args.highlights != 0 {
+        if args.highlights != 0 && !lr.is_null() {
             let value = args.highlights.min(100).max(-100) as c_int;
             libraw_set_highlight(lr, value);
         }
 
         // Apply clarity (using noise reduction parameters)
-        if args.clarity != 0 {
+        if args.clarity != 0 && !lr.is_null() {
             let value = args.clarity.min(100).max(-100) as c_int;
             libraw_set_fbdd_noiserd(lr, value);
         }
 
         // Apply saturation
-        if args.saturation != 0 {
+        if args.saturation != 0 && !lr.is_null() {
             let value = 1.0 + args.saturation.min(100).max(-100) as f32 / 100.0;
             libraw_set_gamma(lr, 0, value); // Apply gamma adjustment to simulate saturation
         }
 
         // Set output color space (sRGB in this case)
-        libraw_set_output_color(lr, 1); // 1 = sRGB
+        if !lr.is_null() {
+            libraw_set_output_color(lr, 1); // 1 = sRGB
+        }
 
         // Set output bits per sample
-        libraw_set_output_bps(lr, 8);
+        if !lr.is_null() {
+            libraw_set_output_bps(lr, 8);
+        }
     }
 }