Tag Archives: masking

Reprocessing Some Backlit Shots from LAX

Every once in a while, I put together two things that I hadn’t previously connected. I have been playing around with the masking tools in Lightroom for ages to put different processing on aircraft versus the sky in the background. When I had done some photography from helicopters over LAX, the lighting had been good on the northern complex but the planes arriving and departing the south complex had been quite harshly backlit.

The processing approach I was using at that time did not make for very good results and so I had tended to ignore the shots I had taken on that side and focus on the north complex instead. Then, while looking at something from another photographer, it got me thinking that the masking tools would be a good option to revisit these backlit shots and try and get a more balanced looking image.

You can’t escape the fact that, if the original shot is not great, you aren’t ever going to turn it into something marvellous. However, there is the potential to come up with something significantly better than I had previously managed.

Selecting the airframe with a more cluttered background is a bit tougher for the automated tools so a fair bit of manual addition and subtraction was needed. However, because you are against a ground background rather than a sky, there is a certain amount of tolerance that you have for not getting the selection absolutely perfect. You don’t want glaring issues, but it won’t be as conspicuous as it is with a sky behind.

With the masking applied, it is a lot easier to come up with an exposure for the planes that looks a lot more like the eye would have perceived whilst still having a background that is okay. I can actually darken it a bit more in order to make the plane pop. On one of the shots, there was a second plane on the taxiway in the shot, so I selected it separately to give it a reasonable look without it taking over the image as a whole. This was a very satisfying process with some images I had previously left alone.

Comparison of a Couple of Edits

Every once in a while, while I am searching for something specific in the Lightroom catalog, I will come across a previous shot that catches my eye for some reason. This might be because it was something interesting, something I had forgotten about or just something that I think might benefit from a re-edit. Sometimes I have changed the way in which I approach edits and in others there is a new tool that has been added which I think will benefit the edit. This image was exactly that. I thought that the masking tools now in Lightroom would make for a more flexible approach to balancing the different parts of the image. I played around with it for a while. Because Lightroom allows you endless virtual copies, you can try something new out without having to lose what was there before. I then created a combination of the two edits to show how differently the same raw file can end up.

Playing With an Old CRJ Moon Shot

For some reason, I recently came back to an old photo I took of a Delta Connection CRJ900 as it climbed out of O’Hare.  It had climbed right by the moon as it was rising in the eastern sky towards the end of the day.  I had liked the photo at the time but now I was thinking about how to do a better job of editing it.  Now I have been using the masking tools in Lightroom a lot more, I figured I could take different approaches for the jet and the background.  The results were a lot better than my original efforts and I quite like how it now looks.

Air Canada Special Early Sunday Departure And Lightroom Masking Options

Air Canada brings a pair of A220-300s in to SEA each evening – one from Toronto and one from Montreal.  They leave the following morning with the Toronto flight heading out early and the Montreal flight following a couple of hours later.  The Toronto flight one weekend was the TCA special aircraft so I decided to head out and catch it departing.

The day started very overcast and gloomy but there was a sign that things were going to get better.  This did happen but things were still not great when the jet departed.  The light had improved a bit but the cloud was still there.  When looking at the shots, I figured it was time to make use of the masking options that Lightroom offers.  The latest update has improved their usability somewhat.  First I drop the exposure of the shot overall to get the sky looking roughly how I want it.  Then I select the aircraft suing the Subject option.  It does a pretty reasonable job but I do then refine it with an addition brush to bring in the bits it has missed and a subtract brush to take out the detail areas where the mask has overlapped.

The new option is the click on this mask and choose the Duplicate and Invert option.  This gives me a sky selection that matches what I have got for the aircraft.  For the sky, I can work on the white balance to bring it back to something more cool which suits the overall look of the shot.  I can similarly work on the white balance for the jet to make the reds pop more in the livery.  The exposure can be brought up a bit with the shadows helping a little while bringing the blacks down while improve the contrast.

All of this is pretty straightforward.  One nice feature of the latest update is that you can actually apply the same settings to multiple images.  The brush adjustments are not going to work well for this so it is best to do the overall selections and sync to the various images and then, if a shot is worthy of further work, the refining of the mask can be done afterwards.  If you know which shot is the best, you can just focus on that one.

Playing with Blending Layers

I have been making some shots with multiple exposures to overlay.  This is something I have posted about before and the shots here are similar to those from before.  However, this post is less about the shots and more about the post processing I used.  Previously I opened up all of the shots as layers in a single file and then auto-aligned them.  Once done, I then used the Auto Blend functionality to show each shot o the aircraft in place.

This was a lot quicker than my previous approach and was something I picked up from posts on photographing star trails.  However, recently, I have not been as happy with the results as I should have been.  Some of the planes, particularly those near to the edges, had some odd artifacts appearing.  Also, if there were any overlaps, the blending masks could give some weird effects.  Therefore, I have taken a different approach for a while.  This is slower, I admit, but I think it gives a better result.

Once the alignment of the images is done, I hide them all except the bottom layer by Alt clicking on the eye beside the last layer.  Then I add the next layer up back in but mask it out completely.  A white brush on the mask then allows me to paint back in the new aircraft positions.  This is a bit laborious but it does allow you to decide exactly what you want in and what you don’t.  if one file is not helpful to the composition, you can easily ignore it.

If the layers are not all exactly aligned from shooting on a tripod, you will also get gaps at the edges on different layers.  You can also fill these in by brushing in the layers that provide the right coverage and get a complete image.  Once you are happy, flatten the whole thing and you are done.