diff --git a/core/image/image.cpp b/core/image/image.cpp
index 74d5e2b..7f38daa 100644
--- a/core/image/image.cpp
+++ b/core/image/image.cpp
@@ -1685,6 +1685,9 @@ const uint8_t *Image::datar() const {
 uint8_t *Image::dataw() {
 	return data.dataw();
 }
+int Image::get_data_size() const {
+	return data.size();
+}
 
 void Image::create(int p_width, int p_height, bool p_use_mipmaps, Format p_format) {
 	ERR_FAIL_COND_MSG(p_width <= 0, "Image width must be greater than 0.");
diff --git a/core/image/image.h b/core/image/image.h
index 8585bdd..1958fc3 100644
--- a/core/image/image.h
+++ b/core/image/image.h
@@ -212,6 +212,7 @@ public:
 	Vector<uint8_t> get_data() const;
 	const uint8_t* datar() const;
 	uint8_t* dataw();
+	int get_data_size() const;
 
 	Image();
 	Image(int p_width, int p_height, bool p_use_mipmaps, Format p_format);