Add interactive test for shading

Author: rohangirishrao

tests/interactive-imagej/test_shading.py

@@ -0,0 +1,20 @@
+# Prerequisites before running this script in Fiji:
+#
+# - The shading branch's .jar must be placed into the ./jars folder of your
+#   Fiji installation.
+# - Open an image to test on (e.g. Shaded-blobs.png) in Fiji before running.
+# - Drag this script into Fiji and run it, or create a new script with language
+#   set to Python and paste the contents.
+#
+# Expected result: a new image titled "Result of blobs.gif" opens alongside
+# the original, showing a flatfield corrected version of the raw blobs.gif.
+
+from imcflibs.imagej import shading
+import ij
+from ij import IJ
+
+imp = IJ.getImage()
+
+# Any other method in class shading also works
+imcf_shading = shading.simple_flatfield_correction(imp)
+imcf_shading.show()