Add option for output image

src/main.rs

@@ -18,14 +18,14 @@ struct FloatingImage {
 }
 
 impl FloatingImage {
-  fn new(width: u32, height: u32, name: String) -> Self {
+  fn new(width: u32, height: u32, name: &String) -> Self {
     let buffer_capacity = 3_655_744;
     let buffer: Vec<u8> = Vec::with_capacity(buffer_capacity);
     FloatingImage {
       width,
       height,
       data: buffer,
-      name,
+      name: name.to_string(),
     }
   }
 
@@ -49,7 +49,7 @@ fn main() -> Result<(), ImageDataErrors> {
     println!("{}", &blurhash);
     let pixels = decode(&blurhash, 50, 50, 1.0).unwrap();
 
-    let mut output = FloatingImage::new(50, 50, "image.png".to_string());
+    let mut output = FloatingImage::new(50, 50, &args[2]);
     output.set_data(pixels)?;
     image::save_buffer_with_format(
     output.name,