Vision Usability.
Change-Id: I745f9d14d16fcaca088236dfd0c4a109494c5648
diff --git a/y2019/vision/debug_viewer.cc b/y2019/vision/debug_viewer.cc
index 51fe831..533dcf6 100644
--- a/y2019/vision/debug_viewer.cc
+++ b/y2019/vision/debug_viewer.cc
@@ -194,6 +194,7 @@
printf(" n: Toggle drawing countours before and after warping.\n");
printf(" m: Toggle drawing raw blob data (may need to change image to toggle a redraw).\n");
printf(" h: Print this message.\n");
+ printf(" a: May log camera image to /tmp/debug_viewer_jpeg_<#>.yuyv"
printf(" q: Exit the application.\n");
} else if (key == 'q') {
printf("User requested shutdown.\n");