[Mobile super res android] Update to opset18 model in the sample (#204)

* update with op18 model

* add gorilla sample shots to readme

* update model name in instrumental tests as well

Author: YUNQIUGUO

mobile/examples/super_resolution/android/README.md

@@ -37,6 +37,8 @@ Note: When update to pre-release/release version ort-extensions android package,
   Now you can try and test the super resolution android app by clicking the perform action button.
 
 #
-Here's an example screenshot of the app.
+Here are some sample example screenshots of the app.
 
-<img width=20% src="images/Screenshot_1.png" alt="App Screenshot 1" />
+<img width=20% src="images/Screenshot_1.png" alt="App Screenshot 1" />
+
+<img width=20% src="images/Screenshot_2.png" alt="App Screenshot 2" />

mobile/examples/super_resolution/android/app/src/androidTest/java/ai/onnxruntime/example/superresolution/ExampleInstrumentedTest.kt

@@ -31,7 +31,7 @@ class ExampleInstrumentedTest {
         // Context of the app under test.
         val appContext = InstrumentationRegistry.getInstrumentation().targetContext
         val resources = appContext.resources
-        val modelBytes = resources.openRawResource(R.raw.pt_super_resolution_op16).readBytes()
+        val modelBytes = resources.openRawResource(R.raw.pytorch_superresolution_with_pre_post_processing_op18).readBytes()
         val env = OrtEnvironment.getEnvironment()
         env.use {
             assertNotNull(env)

mobile/examples/super_resolution/android/app/src/main/assets/gorilla.png

@@ -67,7 +67,7 @@ class MainActivity : AppCompatActivity() {
     }
 
     private fun readModel(): ByteArray {
-        val modelID = R.raw.pt_super_resolution_op16
+        val modelID = R.raw.pytorch_superresolution_with_pre_post_processing_op18
         return resources.openRawResource(modelID).readBytes()
     }