Update app.py

app.py

@@ -31,7 +31,7 @@ def process(RawImage, CameraParameters, Debayer, Sharpening, Denoising):
     sharpening = Sharpening
     denoising = Denoising
     print(np.max(raw_img))
-    raw_img = (raw_img[:,:,0].astype(np.float64)/255.)
+    raw_img = (raw_img[:,:,:].astype(np.float64)/255.)
     img = ppn.processing(raw_img, black_level, white_balance, colour_matrix,
                         debayer=debayer, sharpening=sharpening, denoising=denoising)
     print(np.max(img))