![]() ![]() Blur is the spread of a point of light into a disc. ![]() To sharpen edges the computer first determines what is an edge – it usually does this by looking for differences, pixel by pixel, between the original image and a slightly blurred copy, an “unsharp mask” – and then alongside each edge it darkens dark pixels and lightens light ones. The usual method exaggerates the contrast at edges, but it is often preferable to sharpen the image optically. There are many ways to sharpen a picture. Sharpen either the entire picture or selected parts of it.I usually need to convert the fringes to grey. Unfortunately, most of the colour fringing I encounter has other causes and is too irregular to remove this way. This kind of fringing can be removed with a chromatic aberration control that enlarges colours differentially. Some colour fringing is caused by lenses’ magnifying different wavelengths different amounts – chromatic aberration. Here, in no particular order, is a list of what I want one to do. Photo Editor Requirements - Before I talk any more about specific products, it would be sensible to describe my expectations of a photo editor. Unfortunately, its documentation is so meagre that for many people, its advanced functions are likely to be inaccessible. It is not quite so fast and stable as CS2, but its speed and stability appear to be respectable. It is comparable to Photoshop CS2 in its powers to create and confuse, but it is priced like Adobe Photoshop Elements. I have also found a cheaper camel, PhotoLine. I have not yet found one that I want to buy – Shift+Gain is difficult to replace – but I have found a couple that look interesting. For this reason, I have been keeping my eye out for a horse. Their plug-ins work well with today’s versions of Photoshop but will not be recompiled for Intel-based Macs. I personally find Photoshop indispensable, not so much because of what it can do itself as because it is necessary to run some plug-ins by Asiva, particularly Shift+Gain. It is remarkably useful – no other photo editor will do so much – but it is not an easy beast to ride. #1642: How to identify phishing attacks, new iPhone and iPad passcode requirementsĬamels and Horses: Alternatives to PhotoshopĪdobe Photoshop reminds me of a camel: a horse designed by a committee.#1643: New Mac mini and MacBook Pro models, new second-gen HomePod, security-focused OS updates, industry layoffs.#1644: Explaining Mastodon and the Fediverse, HomePod Software 16.3 and tvOS 16.3, GoTo breach.#1645: AirPlay iPhone to Mac for remote video, Siri learns to restart iPhones, Apple's Q1 2023 financials.1646: Security-focused OS updates, Photos Workbench review, Mastodon client wishlist, Apple-related conferences. ![]()
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