At a loss here

[Anthony1979]

On 27/04/2020 at 10:51, alacant said:

Hi

GIMP? To remove vignetting and gradient. Quick method.

Layers:

Duplicate the layer

Blur the layer until you see no stars

Invert the blurred layer

Merge it. I found around 14% did it.

Merge down the layers

Re-adjust the levels

Experiment with layers, %, layer masks, masked stretches

You could also consider getting an astro processing program but learning GIMP first would be my recommended method; you're in total control rather than the computer;)

HTH

I cant work out how to Blur the Duplicate image.... Sorry for the bother but im thick when it comes to this

[alacant]

27 minutes ago, Anthony1979 said:

Blur the Duplicate

Click on the duplicate layer.

Filters - blur

Most work. I think I used Gaussian.

[Anthony1979]

What do i do here 

[alacant]

59 minutes ago, Anthony1979 said:

What do i do here

Increase Size X

[Anthony1979]

9 minutes ago, alacant said:

Increase Size X

Just the X or do i unlink it... Because Y changes with it

[alacant]

6 minutes ago, Anthony1979 said:

do i unlink it.

Keep it linked.

Just try it anyway. You can always go back or start again:)

Edited April 29, 2020 by alacant

[Anthony1979]

think this is the best im going to get it.... But it still doesnt look right to me..

[happy-kat]

Looking much better, perhaps check your green.

Through don't delete your data in frustration, it is surprising what can be pulled from data in the future as experience grows.

[Anthony1979]

4 minutes ago, happy-kat said:

Looking much better, perhaps check your green.

Through don't delete your data in frustration, it is surprising what can be pulled from data in the future as experience grows.

Where do i check the green

[Anthony1979]

Its more the background whats disapointing... I cant seem to sort it

[alacant]

2 hours ago, Anthony1979 said:

it still doesnt look right

It's looking good:)

2 hours ago, Anthony1979 said:

the background whats disapointing

One simple method is to make the background the all same colour.

Levels:

Choose each channel in turn and set it to the same value. In this example I found that 0,5 did it but for your image it -almost certainly- will be different.

HTH and keep at it. the more you experiment, the more second nature it will become:)

 

 

Edited April 29, 2020 by alacant

[Anthony1979]

I will have another crack at it tomorrow.... Youve got some patience with this

Edited April 29, 2020 by Anthony1979

[alacant]

2 hours ago, Anthony1979 said:

Where do i check the green

One of man methods: Colours -> Colour Balance:

[Anthony1979]

2 hours ago, alacant said:

One of man methods: Colours -> Colour Balance:

So do i need to slide the slider away from green 

[alacant]

7 minutes ago, Anthony1979 said:

slider away from green 

Try that first. Then try increasing red... Don't like it? Hit 'Reset' and go again. Toggle 'preview' to compare before and after.

I'd leave colour until the end though. 

HTH