JFJochReceiver: No access to preview frame via gRPC

python/jfjoch_grpc2http.py

@@ -245,26 +245,6 @@ async def put_detector_selection(request: Request):
         raise HTTPException(status_code=400, detail=e.details())
 
 
-# https://stackoverflow.com/questions/55873174/how-do-i-return-an-image-in-fastapi
-@app.get(
-    "/image/preview.tiff",
-    responses={200: {"content": {"image/tiff": {}}}},
-    response_class=Response,
-)
-async def get_preview():
-    try:
-        stub = jfjoch_pb2_grpc.gRPC_JFJochBrokerStub(channel)
-        pbuf = stub.GetPreview(jfjoch_pb2.Empty())
-        image_array = numpy.frombuffer(pbuf.data, numpy.int16)
-        image_array = numpy.where(image_array < 0, -1, image_array)
-        image_array = numpy.reshape(image_array, (pbuf.height, pbuf.width))
-        b = BytesIO()
-        imwrite(b, image_array)
-        return Response(content=b.getvalue(), media_type="image/tiff")
-    except grpc.RpcError as e:
-        raise HTTPException(status_code=400, detail=e.details())
-
-
 def calib_to_tiff(im: jfjoch_pb2.Image) -> bytes:
     if im.pixel_depth == 2:
         image_array = numpy.frombuffer(im.data, numpy.uint16)
@@ -276,29 +256,6 @@ def calib_to_tiff(im: jfjoch_pb2.Image) -> bytes:
     return bytes(b.getvalue())
 
 
-@app.get(
-    "/image/preview_dioptas.tiff",
-    responses={200: {"content": {"image/tiff": {}}}},
-    response_class=Response,
-)
-async def get_preview_dioptas():
-    try:
-        stub = jfjoch_pb2_grpc.gRPC_JFJochBrokerStub(channel)
-        pbuf = stub.GetPreview(jfjoch_pb2.Empty())
-        if pbuf.pixel_depth == 2:
-            image_array = numpy.frombuffer(pbuf.data, numpy.int16)
-        else:
-            image_array = numpy.frombuffer(pbuf.data, numpy.int32)
-        image_array = numpy.where(image_array < 0, 32767, image_array)
-        image_array = numpy.reshape(image_array, (pbuf.height, pbuf.width))
-        image_array = numpy.flipud(image_array)
-        b = BytesIO()
-        imwrite(b, image_array)
-        return Response(content=b.getvalue(), media_type="image/tiff")
-    except grpc.RpcError as e:
-        raise HTTPException(status_code=400, detail=e.details())
-
-
 @app.get(
     "/image/pedestalG0.tiff",
     responses={200: {"content": {"image/tiff": {}}}},