From a9ee164b4f9c2cb1c3848113e26d224c7dae5322 Mon Sep 17 00:00:00 2001
From: Mark Hoekveen <mark@hoekveen.net>
Date: Sat, 4 May 2024 10:57:42 +0200
Subject: [PATCH] resize function refactor

---
 src/descriptors.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/descriptors.rs b/src/descriptors.rs
index 39815c1..5c187d3 100644
--- a/src/descriptors.rs
+++ b/src/descriptors.rs
@@ -5,6 +5,9 @@ pub trait Descriptor {
     fn info(&self) -> String {
         "Descriptor".to_string()
     }
+    fn resize(&self, img: image::DynamicImage) -> image::DynamicImage {
+        img.grayscale().thumbnail_exact(8, 8)
+    }
     fn describe(&self, img: image::DynamicImage) -> u64;
     fn distance(&self, a: u64, b: u64) -> u64 {
         (a^b).count_ones().into()
@@ -22,7 +25,7 @@ pub struct Median;
 
 impl Descriptor for Median {
     fn describe(&self, img: image::DynamicImage) -> u64 {
-        let img = img.grayscale().thumbnail_exact(8, 8);
+        let img = self.resize(img);
         let mut values: [u8; 64] = [0; 64];
         let mut i: usize = 0;
         for (_, _, pix) in img.pixels() {
@@ -47,7 +50,7 @@ pub struct DCT;
 impl Descriptor for DCT {
     fn describe(&self, img: image::DynamicImage) -> u64 {
         let mut dct_values: [f64; 64] = [0.0; 64];
-        let img = img.grayscale().thumbnail_exact(8, 8);
+        let img = self.resize(img);
         let mut total_sum: f64 = 0.0;
 
         for j in 0..7 {