NGC7023 - Iris Nebula
Feel free to use or publish this material, modified or not. The only condition is that the credit line include the phrase "Image Acquisition by Guillaume Gimenez" with a link to this repository.
Image processing is simpler with good quality source photographs.
Here, the quality of the raw photos is poor, hence the processing is a bit complicated with a resulting picture a bit dull with not a lot of details in the dark parts of the nebula.
You can contribute to this repository, fork it, try DarkFlow and make a pool request. Your processing will be added in its dedicated branch. And the best looking picture will be made the default branch.