Photo Editing Application Round Up

The use of Adobe Photoshop® to edit photographs is so ubiquitous that to photoshop became a verb. Photoshop is an incredibly powerful image manipulation program for which the only limit is your imagination, or possibly your knowledge of how to drive it. Given then the maturity of the market, a surprising number of new applications have appeared in the last 18 months. Many of these delineate themselves from the metaphorical 800lb gorilla by providing a very different user-interface paradigm to that of Photoshop, often the “filters” approach popularised by Instagram. This has enabled them to appeal to the large and rapidly growing market of casual photographers for whom the cost of Photoshop’s monthly subscription model is unsuited.

Of the applications I have tried, each one has its strengths and are continuously improving. Consequently I now have a toolbox of different apps I use when when editing a photos but fortunately Apple’s makes it very easy to call upon each one as the situation demands.

DxO OpticsPro for Photos: A specialist application with just three functions that earns its place for its tremendous noise reduction. The lens correction and haze removal can also be very useful, and the small number of functions make it quick and easy to use.

RAW Power: I have previously written about this application and continue to find it indispensable for adding advanced RAW editing facilities to

On1 Photo RAW: This is currently my primary tool for comparing and culling photos prior to loading into, and occasionally when selecting for publication too. It has a great “Compare Mode” for comparing an arbitrary group of multiple images side-by-side full-screen—a feature that Apple removed from iPhoto in 2010 and still has not been restored in This is also the only tool to provide an edge-detecting brush for creating masks.1 The filter-based editing approach can produce some impressive images but knowing which filters will achieve the desired result requires considerable retained knowledge acquired through experimentation or watching On1’s excellent and extensive selection of tutorial videos.

Luminar: Similar in concept to the Effects module On1 Photo RAW this provides editing through the paradigm of tuneable filters, which can be masked and stacked to produce an output that ranges from subtle enhancement to heavy stylisation.2 Luminar wins its place in my toolbox because the filters and presets are more accessible than those in On1—it is easy to see what needs to be done to a photo to improve it and choose the appropriate filter to achieve that. Another reason to like Luminar is that while it is now available on multiple operating systems, its native Mac origin means it seems to integrate much better with the MacOS than On1.3

Polarr's approach to editing is closer to that of a series of sliders grouped into adjustment blocks of a technical theme. The controls are significantly more sophisticated than those in and it also allows some adjustments to be applied to selected areas (masking). There are some interesting presets of the “highly stylised” variety. The face detection is impressive but the automatic enhancement is completely over the top to the point where it noticeably changes the features of the subject. Overall it is an impressive app, but except for the presets and face detection it requires technical skill to understand how to get the best out of it and I do not find myself reaching for it very often.

All of these apps, except RAW Power and DxO OpticsPro for Photos, are available for Windows as well as MacOS.

  1. Disappointingly the previous version, On1 Photo 10, had even more powerful masking tools. [back]
  2. Both Luminar and On1 also have an object removal tool that makes automatic what, a few years ago, would have taken hours of careful cloning and puts the repair tool in to shame. [back]
  3. Specifically, On1 uses a Windows-style installer instead of just being copied to the Applications folder. This became tedious when they were releasing monthly updates. I also suffered a few months where the extension just failed to work with an “Unknown Error”. [back]

Repairing broken links on this site

Whilst browsing the Google Search Console for this site I noticed that some of my older image galleries were returning errors. This gallery is run by 15 year old PHP code that I occasionally have to hack to keep running on newer versions of PHP so it was not a complete surprise that it might need some fixing. I should pay more attention to webserver upgrade notices though as the logs indicate it has been broken since 1st October.

The error was a bit puzzling at first:
PHP Parse error: syntax error, unexpected end of file
but eventually a helpful StackOverflow page made me realise that I needed to replace all instances of <? with <?php and the problem was solved.

During testing of the fix I found a more serious problem. All my links to picasaweb albums where I had hosted my photos from 2008 and 2009 were dead. This was unexpected since Picasa was run by Google and even though they replaced the service with Google Plus/Photos, I knew all my photos and albums were still online at the latest incarnation of Google’s service and I had trusted that Google, a company who place high importance on links for generating their search results, would not break links. It turns out that my trust was mis-placed as Google had broken some links but not others. Any link containing a username was broken but a userid would still work. So, if I could find my user id I could restore the links. Fortunately my Picasa user id turned out to be the same as my Google Plus user id, and because this was only a small number of posts over a 2 year period I could work through each one and replace the user name with that id to repair the link. There were a few direct links to photos that I was unable to repair because the URL did not contain my username.

These problems make me want to reconsider whether my current photo hosting solution with Flickr is the right one. While WordPress has improved since 2015, and has add-on features to make photograph-heavy websites go faster, those add-ons are still third-party integrations so these potential problems of what is known as “link rot” remain. I have recently been thinking about some of the other disadvantages of using WordPress, but I shall leave those for another post.