diff --git a/src/dither.rs b/src/dither.rs
index 9c69575..dd86027 100644
--- a/src/dither.rs
+++ b/src/dither.rs
@@ -1,6 +1,6 @@
 //! Image dithering algorithms and utilities.
 
-use std::path::PathBuf;
+use std::path::Path;
 
 use image::{ExtendedColorType, ImageReader};
 
@@ -215,7 +215,7 @@ pub const SIERRALITE: [f32; 6] = [0.0, 0.0, 2.0 / 4.0, 1.0 / 4.0, 1.0 / 4.0, 0.0
 /// - The image file cannot be opened
 /// - The image cannot be decoded
 #[must_use]
-pub fn open_image(path: &PathBuf) -> (Vec<u8>, u32, u32) {
+pub fn open_image<P: AsRef<Path>>(path: P) -> (Vec<u8>, u32, u32) {
   //let image = ImageReader::open(path).unwrap().decode().unwrap().into_rgba8();
   let image = ImageReader::open(path).unwrap().decode().unwrap().into_rgb8();
 
@@ -224,7 +224,7 @@ pub fn open_image(path: &PathBuf) -> (Vec<u8>, u32, u32) {
   (buffer, width, height)
 }
 
-pub fn save_image(buffer: Vec<u8>, path: PathBuf, width: u32, height: u32) {
+pub fn save_image<P: AsRef<Path>>(buffer: Vec<u8>, path: P, width: u32, height: u32) {
   let _ = image::save_buffer(path, &buffer, width, height, ExtendedColorType::Rgb8);
 }
 
diff --git a/tests/dither_integration_tests.rs b/tests/dither_integration_tests.rs
index 4e3a3e4..254aa5d 100644
--- a/tests/dither_integration_tests.rs
+++ b/tests/dither_integration_tests.rs
@@ -12,7 +12,7 @@ fn test_image_exists() {
 
 #[test]
 fn test_open_image() {
-  let (buffer, width, height) = open_image(&PathBuf::from(TEST_IMAGE));
+  let (buffer, width, height) = open_image(PathBuf::from(TEST_IMAGE));
 
   assert!(width > 0, "Image width should be greater than 0");
   assert!(height > 0, "Image height should be greater than 0");
@@ -25,7 +25,7 @@ fn test_open_image() {
 
 #[test]
 fn test_floyd_steinberg_all_palettes() {
-  let (buffer, width, height) = open_image(&PathBuf::from(TEST_IMAGE));
+  let (buffer, width, height) = open_image(PathBuf::from(TEST_IMAGE));
   let original_buffer = buffer.clone();
 
   // Test with monochrome
@@ -46,7 +46,7 @@ fn test_floyd_steinberg_all_palettes() {
 
 #[test]
 fn test_error_diffusion_algorithms() {
-  let (buffer, width, height) = open_image(&PathBuf::from(TEST_IMAGE));
+  let (buffer, width, height) = open_image(PathBuf::from(TEST_IMAGE));
   let original_buffer = buffer.clone();
 
   let algorithms = [
@@ -70,7 +70,7 @@ fn test_error_diffusion_algorithms() {
 
 #[test]
 fn test_bayer_algorithms() {
-  let (buffer, width, height) = open_image(&PathBuf::from(TEST_IMAGE));
+  let (buffer, width, height) = open_image(PathBuf::from(TEST_IMAGE));
   let original_buffer = buffer.clone();
 
   let algorithms = [DitherMethod::Bayer2x2, DitherMethod::Bayer4x4, DitherMethod::Bayer8x8];
@@ -84,7 +84,7 @@ fn test_bayer_algorithms() {
 
 #[test]
 fn test_no_dithering() {
-  let (buffer, width, height) = open_image(&PathBuf::from(TEST_IMAGE));
+  let (buffer, width, height) = open_image(PathBuf::from(TEST_IMAGE));
   let original_buffer = buffer.clone();
 
   let mut test_buffer = original_buffer.clone();
@@ -96,7 +96,7 @@ fn test_no_dithering() {
 
 #[test]
 fn test_monochrome_palette_output() {
-  let (buffer, width, height) = open_image(&PathBuf::from(TEST_IMAGE));
+  let (buffer, width, height) = open_image(PathBuf::from(TEST_IMAGE));
   let mut test_buffer = buffer;
 
   dither(&mut test_buffer, DitherMethod::FloydSteinberg, ColorPalette::Monochrome, width, height);
@@ -116,7 +116,7 @@ fn test_monochrome_palette_output() {
 
 #[test]
 fn test_save_and_cleanup() {
-  let (mut buffer, width, height) = open_image(&PathBuf::from(TEST_IMAGE));
+  let (mut buffer, width, height) = open_image(PathBuf::from(TEST_IMAGE));
 
   dither(&mut buffer, DitherMethod::FloydSteinberg, ColorPalette::Monochrome, width, height);
 
@@ -131,7 +131,7 @@ fn test_save_and_cleanup() {
 
 #[test]
 fn test_all_algorithms_with_all_palettes() {
-  let (buffer, width, height) = open_image(&PathBuf::from(TEST_IMAGE));
+  let (buffer, width, height) = open_image(PathBuf::from(TEST_IMAGE));
 
   let algorithms = [
     DitherMethod::None,
@@ -177,7 +177,7 @@ fn test_all_algorithms_with_all_palettes() {
 
 #[test]
 fn test_buffer_bounds() {
-  let (buffer, width, height) = open_image(&PathBuf::from(TEST_IMAGE));
+  let (buffer, width, height) = open_image(PathBuf::from(TEST_IMAGE));
   let mut test_buffer = buffer;
 
   // Test with edge case: 1x1 image would be too small, so test with actual image
@@ -190,7 +190,7 @@ fn test_buffer_bounds() {
 
 #[test]
 fn test_different_algorithms_produce_different_results() {
-  let (buffer, width, height) = open_image(&PathBuf::from(TEST_IMAGE));
+  let (buffer, width, height) = open_image(PathBuf::from(TEST_IMAGE));
 
   let mut floyd_buffer = buffer.clone();
   let mut atkinson_buffer = buffer.clone();