Clippy lints and build warnings

Author: ChrisRega

src/colorization.rs

@@ -8,6 +8,7 @@ pub type RGBSimilarityImage = ImageBuffer<Rgb<f32>, Vec<f32>>;
 pub type RGBASimilarityImage = ImageBuffer<Rgba<f32>, Vec<f32>>;
 
 #[derive(Debug)]
+#[allow(clippy::upper_case_acronyms)]
 pub enum SimilarityImage {
     Gray(GraySimilarityImage),
     RGB(RGBSimilarityImage),

src/hybrid.rs

@@ -1,4 +1,3 @@
-use crate::colorization::{GraySimilarityImage, RGBASimilarityImage, RGBSimilarityImage};
 use crate::prelude::*;
 use crate::squared_error::root_mean_squared_error_simple;
 use crate::ssim::ssim_simple;

src/squared_error.rs

@@ -1,4 +1,3 @@
-use crate::colorization::GraySimilarityImage;
 use crate::prelude::*;
 use itertools::izip;
 

src/ssim.rs

@@ -1,4 +1,3 @@
-use crate::colorization::GraySimilarityImage;
 use crate::prelude::*;
 use crate::utils::{draw_window_to_image, Window};
 use rayon::prelude::*;

src/utils.rs

@@ -1,6 +1,5 @@
-use crate::colorization::{GraySimilarityImage, RGBSimilarityImage};
 use crate::prelude::*;
-use image::{GrayImage, RgbaImage};
+use image::RgbaImage;
 use itertools::izip;
 
 /// see https://www.itu.int/rec/T-REC-T.871