diff --git a/src/pixie/images.nim b/src/pixie/images.nim
index e4f447f..55db070 100644
--- a/src/pixie/images.nim
+++ b/src/pixie/images.nim
@@ -129,6 +129,12 @@ proc subImage*(image: Image, x, y, w, h: int): Image {.raises: [PixieError].} =
       w * 4
     )
 
+proc subImage*(image: Image, rect: Rect): Image {.raises: [PixieError].} =
+  ## Gets a sub image from this image via rectangle.
+  ## Rectangle is snapped/expanded to whole pixels first.
+  let r = rect.snapToPixels()
+  image.subImage(r.x.int, r.y.int, r.w.int, r.h.int)
+
 proc diff*(master, image: Image): (float32, Image) {.raises: [PixieError].} =
   ## Compares the parameters and returns a score and image of the difference.
   let
diff --git a/tests/test_images.nim b/tests/test_images.nim
index 5117df1..bb86a6f 100644
--- a/tests/test_images.nim
+++ b/tests/test_images.nim
@@ -259,5 +259,5 @@ block:
   )
   let rect = image.opaqueBounds()
   doAssert rect == rect(6.0, 6.0, 48.0, 48.0)
-  let trimmedImage = image.subImage(rect.x.int, rect.y.int, rect.w.int, rect.h.int)
+  let trimmedImage = image.subImage(rect)
   trimmedImage.xray("tests/images/opaqueBounds.png")