utils: raspberrypi: ctt: Add alsc_only method

The ctt would not work if only passed alsc images.

Add alsc_only.py to run alsc calibration only, and modify check_imgs
to allow for no macbeth chart images.

Example usage would be ./alsc_only.py -i tuning-images/ -o sensor.json
with the same optional arguments as the original ctt.

Signed-off-by: William Vinnicombe <william.vinnicombe@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/utils/raspberrypi/ctt/alsc_only.py b/utils/raspberrypi/ctt/alsc_only.py
new file mode 100755
index 00000000..7cd0ac01
--- /dev/null
+++ b/utils/raspberrypi/ctt/alsc_only.py
@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (C) 2022, Raspberry Pi (Trading) Limited
+#
+# alsc_only.py - alsc tuning tool
+
+from ctt import *
+
+
+if __name__ == '__main__':
+    """
+    initialise calibration
+    """
+    if len(sys.argv) == 1:
+        print("""
+    Pisp Camera Tuning Tool version 1.0
+
+    Required Arguments:
+    '-i' : Calibration image directory.
+    '-o' : Name of output json file.
+
+    Optional Arguments:
+    '-c' : Config file for the CTT. If not passed, default parameters used.
+    '-l' : Name of output log file. If not passed, 'ctt_log.txt' used.
+              """)
+        quit(0)
+    else:
+        """
+        parse input arguments
+        """
+        json_output, directory, config, log_output = parse_input()
+        run_ctt(json_output, directory, config, log_output, alsc_only=True)