Processing Images – NGC 6618 (Part 3 of 3)

Following on from the last post………

When you process images from the Hubble using the various exposures, the aim is to try and bring out details in the picture that is not so evident.

You look at the exposures and define specific areas that you want to enhance or make sure comes out with the most detail as possible.

In the picture below, we show the red filter exposure on the left with the final image in the middle.

The third image shows the areas that we targetted with the Swan Nebula.

The areas circled in green are the areas we wanted to enhance with as much detail as could be achieved. Often this is a result of adding in the other 2 colors and adjusting the different settings.

The area circled in yellow shows detail in the final result that was not that evident in the red exposure. And if you look at the blue and green exposures you can’t see where this extra detail came from there. The data was in the exposures somewhere and your job is to try and find that detail when you process these images.

If you look at the exposure below and compare it to the final result, you will see other regions in the final shot which have detail not shown in the exposure.

NGC 6618 Target areas (Click to Enlarge)

~ by sydneystargazers on July 3, 2010.

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