diff --git a/headers/enduro2d/utils/image.hpp b/headers/enduro2d/utils/image.hpp
index 6fc376c2..bb52006d 100644
--- a/headers/enduro2d/utils/image.hpp
+++ b/headers/enduro2d/utils/image.hpp
@@ -61,13 +61,13 @@ namespace e2d
         image(const image& other);
         image& operator=(const image& other);
 
-        image(const v2u& size, image_data_format format, buffer&& data);
+        image(const v2u& size, image_data_format format, buffer&& data) noexcept;
         image(const v2u& size, image_data_format format, const buffer& data);
 
         image& assign(image&& other) noexcept;
         image& assign(const image& other);
 
-        image& assign(const v2u& size, image_data_format format, buffer&& data);
+        image& assign(const v2u& size, image_data_format format, buffer&& data) noexcept;
         image& assign(const v2u& size, image_data_format format, const buffer& data);
 
         void swap(image& other) noexcept;
@@ -89,7 +89,6 @@ namespace e2d
     };
 
     void swap(image& l, image& r) noexcept;
-    bool operator<(const image& l, const image& r) noexcept;
     bool operator==(const image& l, const image& r) noexcept;
     bool operator!=(const image& l, const image& r) noexcept;
 }
diff --git a/sources/enduro2d/utils/image.cpp b/sources/enduro2d/utils/image.cpp
index 64dae49f..894bded4 100644
--- a/sources/enduro2d/utils/image.cpp
+++ b/sources/enduro2d/utils/image.cpp
@@ -63,7 +63,7 @@ namespace e2d
         return assign(other);
     }
 
-    image::image(const v2u& size, image_data_format format, buffer&& data) {
+    image::image(const v2u& size, image_data_format format, buffer&& data) noexcept {
         assign(size, format, std::move(data));
     }
 
@@ -88,7 +88,7 @@ namespace e2d
         return *this;
     }
 
-    image& image::assign(const v2u& size, image_data_format format, buffer&& data) {
+    image& image::assign(const v2u& size, image_data_format format, buffer&& data) noexcept {
         data_.assign(std::move(data));
         size_ = size;
         format_ = format;
@@ -196,12 +196,6 @@ namespace e2d
         l.swap(r);
     }
 
-    bool operator<(const image& l, const image& r) noexcept {
-        return l.format() < r.format()
-            || (l.format() == r.format() && l.size() < r.size())
-            || (l.format() == r.format() && l.size() == r.size() && l.data() < r.data());
-    }
-
     bool operator==(const image& l, const image& r) noexcept {
         return l.format() == r.format()
             && l.size() == r.size()