diff --git a/src/examples/ImageScaleDown.cpp b/src/examples/ImageScaleDown.cpp
index e448621b..8c98a779 100644
--- a/src/examples/ImageScaleDown.cpp
+++ b/src/examples/ImageScaleDown.cpp
@@ -36,7 +36,7 @@ void tvgDrawCmds(tvg::Canvas* canvas)
     //Original
     auto picture = tvg::Picture::gen();
 
-    if (picture->load(EXAMPLE_DIR"/scaledown.png") != tvg::Result::Success) {
+    if (picture->load(EXAMPLE_DIR"/scaledown.jpg") != tvg::Result::Success) {
         cout << "The PNG file is not loaded correctly. Did you enable PNG Loader?" << endl;
         return;
     }
@@ -50,18 +50,7 @@ void tvgUpdateCmds(tvg::Canvas* canvas, float progress)
 {
     if (!canvas || !pPicture) return;
 
-    auto scale = 1.0f;
-
-    if (progress > 0.875f) scale = 0.125f;
-    else if (progress > 0.75f) scale = 0.25f;
-    else if (progress > 0.625f) scale = 0.375f;
-    else if (progress > 0.5f) scale = 0.5f;
-    else if (progress > 0.375f) scale = 0.625f;
-    else if (progress > 0.25f) scale = 0.75f;
-    else if (progress > 0.125f) scale = 0.875f;
-    else scale = 1.0f;
-
-    pPicture->scale(scale);
+    pPicture->scale(1.0f - progress);
 
     canvas->update(pPicture);
 }
diff --git a/src/examples/ImageScaleUp.cpp b/src/examples/ImageScaleUp.cpp
index ad69330f..468d0480 100644
--- a/src/examples/ImageScaleUp.cpp
+++ b/src/examples/ImageScaleUp.cpp
@@ -36,7 +36,7 @@ void tvgDrawCmds(tvg::Canvas* canvas)
     //Original
     auto picture = tvg::Picture::gen();
 
-    if (picture->load(EXAMPLE_DIR"/scaleup.png") != tvg::Result::Success) {
+    if (picture->load(EXAMPLE_DIR"/scaleup.jpg") != tvg::Result::Success) {
         cout << "The PNG file is not loaded correctly. Did you enable PNG Loader?" << endl;
         return;
     }
@@ -50,18 +50,7 @@ void tvgUpdateCmds(tvg::Canvas* canvas, float progress)
 {
     if (!canvas || !pPicture) return;
 
-    auto scale = 1.0f;
-
-    if (progress > 0.875f) scale = 4.0f;
-    else if (progress > 0.75f) scale = 3.0f;
-    else if (progress > 0.625f) scale = 2.5f;
-    else if (progress > 0.5f) scale = 2.0f;
-    else if (progress > 0.375f) scale = 1.75f;
-    else if (progress > 0.25f) scale = 1.5f;
-    else if (progress > 0.125f) scale = 1.25f;
-    else scale = 1.0f;
-
-    pPicture->scale(scale);
+    pPicture->scale(progress * 4.0f);
 
     canvas->update(pPicture);
 }
diff --git a/src/examples/resources/scaledown.jpg b/src/examples/resources/scaledown.jpg
new file mode 100644
index 00000000..dfdbe3ca
Binary files /dev/null and b/src/examples/resources/scaledown.jpg differ
diff --git a/src/examples/resources/scaledown.png b/src/examples/resources/scaledown.png
deleted file mode 100644
index f4ac3ee2..00000000
Binary files a/src/examples/resources/scaledown.png and /dev/null differ
diff --git a/src/examples/resources/scaleup.jpg b/src/examples/resources/scaleup.jpg
new file mode 100644
index 00000000..a473d8f6
Binary files /dev/null and b/src/examples/resources/scaleup.jpg differ
diff --git a/src/examples/resources/scaleup.png b/src/examples/resources/scaleup.png
deleted file mode 100644
index 345fbdae..00000000
Binary files a/src/examples/resources/scaleup.png and /dev/null differ