Tag Archives: photoshop

Another Go at Stitching iPhone Raw Shots

As I posted a while ago, I have been experimenting with stitching shots from my phone. Since I am shooting in raw on the phone, I have some latitude to play with the shots in post that wasn’t there before. This time, though, I thought about it a bit more and put the camera into manual mode to fix the exposure. This should make the stitching and blending easier than when it changed between shots (although, to give the Lightroom team credit, it did a pretty good job anyway). I allowed plenty of overlap and the merge seemed to go pretty well. Since it outputs a dng file, you still have the chance to edit more aggressively than would be possible with a jpeg. Meanwhile, you get a higher resolution shot than with the internal pano mode. This may be my go to method from now on.

Sacramento Roundhouse

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One end of the railroad museum in Sacramento is a roundhouse. It is accessible still from the line outside and I was there for a modern locomotive that was being unveiled. Access comes via a turntable which sits right next to the path along the river. I figured I would put together a panorama of the scene. However, I only had my phone (albeit able to shoot raw). I had never tried shooting a pano sequence with it before having only used its internal pano function.

I wasn’t controlling the exposure (although there is a manual function in the app I use) but I had noticed that the Lightroom pano function seemed quite adept at dealing with small exposure variation. I took the sequence and there was not a big difference across them. When I got home, I added them to Lightroom and had a go at the stitching function. It worked better than I had expected. Some small distortions were there but it actually was rather good. I had not been happy about the reduced size of the pano function of the phone so this has provided a better option to use in the future.

My Revised Workflow

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My approach to processing images after a shoot is something that constantly evolves. I have written about how I do this in the past but a few things have changed since I wrote that so I thought I would write up the latest approach in case it is of any use/interest to any other shooters out there. I should say at the start that my workflow is based around the use of Lightroom. If you don’t use Lightroom, this might not be of any use to you although I imagine that a similar process could be achieved with other software.

One thing to highlight at the start is that, when shooting aviation (and that is the majority of my photography), I aim to slightly overexpose my shots. I have found that going a slight bit over and then bringing the exposure back down in post-production gives a better balance of exposure across the shots and also makes for more pleasing sky colors. This is something I do when shooting RAW. If you shoot in JPEG, this might still work but your latitude for adjustment afterwards is a bit reduced so you might not get the same effect. I don’t shoot in JPEG so I can’t state what happens.

All the shots are imported in to Lightroom and I will form a Collection Set for the shoot. I don’t have specific folders for shoots, nor do I have a renaming convention. I keyword all shoots and this is how I manage files and find things later. Keywording is a story for another day. Within the Collection Set, I shall create a series of Smart Collections. They vary depending on what I have shot. There will always be Not Rejects, Rejects and Picks. Then, depending on what else there is, there might be Videos, Time Lapse, Blend Stack, Pano Originals, Pano Edits, HDR Originals and HDR Edits. I keyword any of these types of shot with that term so the smart collections will pick them up. The Smart Collections may be looking for a date range or shoot specific keywords depending on what I have been shooting.

The aim for all of this is that I get a Smart Collection which is unrejected shots which doesn’t include and shots from HDRs, panos, time lapses or blend stacks. I don’t want to get rid of those shots by mistake and I want to be able to edit those shots at a convenient time. Then the Not Rejects folder becomes my focus. I am aiming to get all of them roughly corrected for exposure so I can make decisions about which shots to keep. I will be looking for sharpness/focus issues and exposure variation can really mess with how you perceive sharpness. I will open a shot up in the Develop module and I will have the Grid view on the second monitor. I can now select shots with the same exposure and choose Auto Sync. Then a change to one shot will be reflected in all of them.

It used to be that I would select the shots by eye. Then it occurred to me that the Metadata filter is powerful here. I select the filter of shutter speed and then I can select each shutter speed in turn. Now it is easy to select the similar shots and edit together. This really speeds up the quick edit process. I know tweak whatever needs tweaking and get everything basically okay. I won’t bother with detailed editing unless a shot is going to be used for something further. Now I select all files and, in the Library module, select Render 1-1 Views. Then I head off to do something else for a while.

When the rendering is done (I don’t try and do anything else while it is underway because, while you can do other Lightroom tasks, everything gets pretty sluggish. It is easier to wait. I may even shut Lightroom down and restart it after the rendering is done because it seems to like the chance to clean itself up. Then I go to the first of the Not Rejects shots. I have it full screen on the main screen and then zoom to 100% on the second screen. The Smart Collection is set up to show any file that is not marked as a reject (or all of the other stuff I mentioned earlier) so now I can click through the shots. If a shot is good, I Right Arrow to the next one. If it is bad, hit X and it disappears. Now I can run through the whole shoot and quickly get rid of all shots that are not good, be they unsharp, chopping off a bit of something or just clearly useless.

When this first pass is done, I am now left with a bunch of shots, many of which are very similar. Since I know they all are basically acceptable, I can now select all the ones that I won’t have a need for and hit X. Very quickly I am down to a far more manageable number of shots. Then I can pick which ones I want to do something with. Hit P for those and they will automatically appear in the Picks Smart Collection and I can come back to them at any time. If I have shots that will be used for a specific piece, I may create a Collection specifically for that publication and just drag the shots in so I can deal with them at any time.

That pretty much sums up how I handle a shoot. Some will have pano shots, some will have HDR, occasionally there will be time lapses and often videos. Sadly, the integration of video between Lightroom and Photoshop is non-existent so I have yet to have a good process for video editing. Maybe one day Adobe will fix that. They tempted us by having video in Lightroom but they never took it any further despite the fact that the opening in layers option for stills would be ideal for video editing. One day…

Trying to Remove the Traffic on the Bridge

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The suspension bridge at Lions Gate in Stanley Park, Vancouver is a magnet for photographers. I was only passing through but, as we watched the traffic moving across the bridge, I was thinking about how to get a shot that didn’t have cars on it. The traffic was steady so there was not way I would get a clear moment. Indeed, while we were there, they changed the lights and reversed the center lane based on the traffic demand.

I didn’t have a tripod but I did decide to experiment with an alternative technique. This is best done using a tripod and a lot of exposures but I figured I would go with shots that were pretty closely aligned and about half a dozen shots. This didn’t work perfectly but it didn’t go too badly. When you get back to the computer, you open up Photoshop. Click on File and Statistics and a dialog opens up. Select all of the files and change the option at the top to Median and check Align Images. Then send it on its way.

If the shots are good and there are enough, the algorithm will look at each shot and see the changing items – cars in this case – as the oddities. It will see what is consistent in each shot and get rid of the odd stuff. If you have it right, the cars will vanish. In this case, there were some overlaps and not enough shots but it still did a reasonable job.

Lightroom, Video and Capture Times

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Getting the new camera has resulted in discovering a new quirk in the way that files are handled. I have been capturing video on the camera and, when it is imported to Lightroom, the video is showing a different capture time to the stills around it. The offset is eight hours which is the difference between the US West Coast and UTC. I was wondering whether this was an issue with Lightroom so checked in with some forums on that topic. I got feedback about the way that files record capture time for files and the suggestion that it was down to the way Canon write the capture time in a format different from that in the standards.

I then starting communicating with Canon and they said there was nothing wrong with their format and that the software I was using, i.e. Lightroom, was the one at fault. It seems everyone considers this someone else’s fault. Not much help to me of course. In the meantime, I have to remember to go to the edit capture time function in Lightroom when I import the files if there is any video included. I usually remember but not always. If anyone has a good suggestion, please let me know.

Lightroom Furor Missing the Point?

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Adobe recently updated Lightroom and introduced a new version of the import dialog. This move caused consternation in the online photo world and they are currently planning to revert back to the previous version. So much of the focus was on lost functionality in the new version. I have struggled to see how bad the losses were. Everything I needed before was in the revised dialog and from what I can see, the bits that went away were not exactly game changers. Of course, different people have different uses so it might matter to them.

What I am surprised about is that far less attention is being given to the fact the new release is horribly buggy. The new import dialog is a prime example. You have the import presets as before but if you change to a new preset, the location that is shown for where the files will be copied is the previous one. If you click to change it, you see that the correct folder for the new preset has been selected. It actually sends them where it is supposed to but it shows a different location. This is annoying but not impossible. The import dialog presets have been buggy for as long as I can recall with certain elements impossible to get rid of once selected.

Overall, the program is a lot less reliable. I have had develop screens lock up when it gets tired with a blue block replacing the image in question. If I leave it open long enough, it locks up completely. Sometimes, when I go to the Open Recent tab, the arrow appears but no recent catalogs are on display.

So, while everyone has been getting really messaged up about the import dialog, I am not that bothered. I think they should have been focusing on how Adobe released an update to Lightroom that seems to have a ton of problems with doing the basic stuff it is supposed to do. That seems far more worrying to me.

Blog Image Upload Using WP/LR Sync

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Providing a review on something you haven’t had a lot of use of doesn’t seem like a good plan. This is something I have been using for a while and, now I have had a bit of time with it, I thought I would share what it is like. Uploading images to the blog is obviously a big part of the preparation of posts since, at the end of the day, this is primarily a photographic blog. When I first started out, I would create the images I wanted and then upload them manually. That was time consuming but was soon superseded by an alternative.

I started using the LR/Blog plugin to Lightroom. This would create a version of the file including any formatting, borders and conversion to the right color space and would then upload it to the blog. This worked okay for a long time but it had one significant limitation. If I tried to upload too many shots at once, it would fail and then lock me out of the blog for a while. I started searching for an alternative when my efforts to solve this problem went nowhere fast.

If you Google this topic, almost everything brings you to LR/Blog. However, recently I came across WP/LR Sync. It is a Lightroom plug in that makes use of the Publish services in Lightroom. Rather than uploading the images one time, you add the files to a collection that is then published to your blog. If you change the image, you can have the online version amended in sync with the original. If you go to http://apps.meow.fr/wplr-sync/ you can read more about it.

I decided to give this a go. However, in the guidance, Jordy provides a piece of information for people like me who have problems uploading lots of images. Apparently, my hosting service treats too many upload attempts in a short time as an attack and you get locked out. This was what was happening before. WP/LR Sync has a field that allows a small time delay between images which, if set just long enough, will prevent you getting treated as an attack. Something like this would also cure my LR/Blog issues I guess but that ship has sailed.

I am very happy with the new plug in. It works well and allows the same edits of the image before uploading as before. A benefit is that, if you drag images to the sync collection and they were already in there, you don’t end up with duplication on the blog. The one you previously uploaded is there. You just might have to scroll down a bit to try and find it. If you want to have a go with this add on to Lightroom, visit http://apps.meow.fr/wplr-sync/ and check it out.

Haze Filter

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The Creative Cloud version of Lightroom drops new features in to the software when the updates are installed. This is a nice thing to have happen but, unless you are paying attention, you might not be aware of some of the new features. It took me a while after the last update to learn that a new filter had been added that was designed to take haze out of images. This is a great idea. I have experimented with trying to remove the effect of haze in shots before but, because the effect varies by distance, it can be quite tricky to get something that doesn’t look totally wrong.

I have not played with the filter a lot but I did decide to try it out on a shot I took at Crater Lake a few years back. Wildfires had resulted in smoke in the air which meant the usual clear view across the lake was obscured. I thought I would see how the filter worked out. Above are the before and after shots. It is an improvement but obviously isn’t going to rescue a totally messed up shot. I did try a more aggressive setting but that looked wrong itself so this was the one I went with. We shall see if this has other uses for me over time.

Clever Feature of Lightroom CC

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This one is something that I can attribute to the Kelby media juggernaut. I did not discover this myself but, if you are a user of Lightroom CC and use either the HDR or the panorama functions, this could be of interest. One of my issues with them was that they took a while to bring up a preview. Once you had got this, the processing would work in the background.

It turns out, if you don’t need to tweak the settings and are happy with what you used previously, you can hold Shift and Ctrl and press either M for panorama or H for HDR and it will launch right into processing the whole thing in the background. You can set multiple versions off if you wish and they will all get to work out of sight while you do something else. While my feelings on the outcome of the processing are not universally great and I covered this in some previous posts, it does a reasonable job most of the time and this is an even better feature that is well concealed!

Experiences with Lightroom CC

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I have discussed some of the new functions of Lightroom CC here and here. Aside from those changes, how have things been with the program overall? To be honest, I am a bit underwhelmed by the new version. There have been a few minor functionality upgrades but nothing huge. I do like the ability to add images to a collection when importing them since that has saved a step for me. However, the presets do not seem happy remembering which collection it is so that is rather buggy. Many of the bugs in the previous version also exist so, if they have really recoded a lot, they have still reused a lot of the code.

The new version also seems to have a fair few bugs of its own. The crop tool seems to have developed some new quirks that result in it deciding you have finished selecting the area a short while after you actually do so, if you have moved the cursor away, you get some very odd effects. I still can’t get it to stop trying to create a backup copy of my files when I import new images. Nothing new was added for video which I think is daft. They give you the capability to import video and even trim and edit clips. However, with Photoshop having the ability to be a basic video editor (and now my default), there is no way to connect videos in Lightroom with Photoshop in the same way as you do for stills. That baffles me.

The big benefit is in processing speed. My workflow involves rendering 100% views to speed me through the culling process. The new version certainly renders them a lot faster. I did have to upgrade my graphics cards though. My vintage cards did not have the necessary version of OpenGL to let Lightroom take advantage of them. It also has lens profiles for two of my lenses that were not in the previous version which is nice to have.

Overall, I am okay but a bit underwhelmed. Since I pay for the subscription, I am paying for it but it does have the feel of being free so I am less concerned even if I can understand the truth. What I am hoping for is a bit more frequency in fixes to deal with the bugs and maybe bring some extra capabilities.