SCNR -Correcting the Tint of the Image

updated: 2021-05-28

Purpose	Final color correction If the final image still looks a bit greenish, reddish or blueish you can use SCNR to reduce the tint or color cast of your image
Activation	Menu: Process 🡺 All Processes 🡺 SCNR Process Explorer: NoiseReduction 🡺 SCNR
Input	Stretched image, file name “*_i_c_DBE_ABE_BN_CC_HT_MLT_FS.xisf” or similar
Output	Corrected image, file name “*_i_c_DBE_ABE_BN_CC_HT_MLT_FS_SCNR.xisf” or similar into sub folder "aligned"
Previous Step	Background Improvement
Next Step	Improving the Image (any step)
Tutorial	https://www.youtube.com/watch?v=-Hy531xgLUw& (at minute 27:56) (Part 8 Noise Reduction and Full Stretch)

Step	Action	Description
1	Open the SCNR Function
2	Select Color and Amount in this case the stars looked a bit reddish, by reducing the red color by 23% or 30% the image looks more neutral
3	Apply the SCNR function Just pull the little blue triangle onto the image... original corrected
14	Save the Color Corrected Image file name like “*_i_c_DBE_ABE_BN_CC_HT_MLT_FS_SC.xisf” or similar into sub folder "aligned" (or 20170921_M8_FUJXT1_i_c_DBE_ABE_BN_CC_HT_MLT_FS_SC.xisf in this case)	using postfix _SC file name like “*_SC.xisf”

Open the SCNR Function