Stretching

[-Amenophis-]

Hello,

For my part, I think I am limited because I do not do well the stretching. I think this step is really very important.

How do you make this step in LRVB?

On my side, I'm stretching on the Luminance.
I'm going up on chrominance and then I'm putting both together.

I feel like I'm losing a lot of detail during the stretching.

Thank you in advance for your opinion and help.

Best regards,


Luminance : https://www.dropbox.com/s/ecu42995xlr1u1m/drizzle_Luminance.fit?dl=0
Blue : https://www.dropbox.com/s/vy23l8mjaedmif9/drizzle_BLeu.fit?dl=0
Red : https://www.dropbox.com/s/ay0krn0rf5rlgsy/drizzle_Rouge.fit?dl=0
Green : https://www.dropbox.com/s/13ks5kkhhm1xv51/drizzle_Vert.fit?dl=0

[aworonow]

I think you are doing it correctly: take the stacked images and 1) combine RGB and color-balance/calibrate as desired; 2) stretch (masked stretch works well); 3) decon then stretch the L. Using LRGBCombine, combine L by dropping LRGBCombine triangle on the RGB.

I see a lot of folks doing drizzle when it is not of any value, and might be enhancing noise. Check if your pixel resolution is at least 3x greater than your seeing (typicall 1-3 arcseconds in good locations). If not, then do not drizzle!

Alex