jfjoch_broker: Measure preprocessing time for images

tools/jfjoch_process.cpp

@@ -766,7 +766,8 @@ int main(int argc, char **argv) {
     }
 
     auto image_mean_time = plots.GetMeanProcessingTime();
-    logger.Info("Per-image time: (mean; microseconds): spot finding {:.0f} indexing {:.0f} refinement {:.0f} prediction {:.0f} integration {:.0f} total {:.0f}",
+    logger.Info("Per-image time: (mean; microseconds): preprocess {:.0f} spot finding {:.0f} indexing {:.0f} refinement {:.0f} prediction {:.0f} integration {:.0f} total {:.0f}",
+        image_mean_time.preprocessing * 1e6,
         image_mean_time.spot_finding * 1e6,
         image_mean_time.indexing * 1e6,
         image_mean_time.refinement * 1e6,