The resulting combined images will display greatly reduced image noise, often going beyond what could be achieved with a camera’s base ISO. Each image is compared and any irregularities – including image noise – are excluded from the blend.
After shooting several frames, you can use Affinity Photo’s Stacking command ( File>New Stack) to automatically align and blend the set (Photoshop has a similar feature, too). This technique is particularly effective for extremely high-ISO shooting scenarios such as astrophotography. Photo Sometimes shooting a set of photos and stacking them afterwards can lead to beautifully noise-free photos. We simply use Layer>New Live Filter Layer to add the effect, choose a radius setting to control the intensity of the sharpening effect, then set the Live Filter Blend Mode to – in order of intensity – either Soft Light, Overlay or Linear Light. By using Live Filters in Affinity Photo, High Pass sharpening can be applied with ease. It’s especially effective when an image has out-of- focus areas, as it lets us sharpen up the important details but leaves the low-frequency soft areas untouched. One of the most popular techniques for sharpening details involves using the High Pass filter. As such, every image is automatically optimised to correct for lens softness, so you might find that the image looks sharper before you even begin making edits.Ĭredit: James Paterson Refined High Pass sharpening The editor can call upon DxO’s extensive database of lens/camera combinations and their associated pitfalls. PhotoLab 2 has another ace up its sleeve when it comes to image sharpness. The only downside is that it takes slightly longer – up to several minutes – to process the image upon exporting it, but that’s a small price to pay for noise reduction this refined. If you regularly shoot at high ISOs or at night, the results of using the PRIME noise tool – which intelligently distinguishes between noise and fine details – can be astonishingly good. It’s arguably the best noise-reduction tool you can get in any software currently. The jewel in the crown here is PRIME Noise Reduction (available in the PhotoLab 2 Elite edition). Long renowned for its noise-reducing technology and extensive lens database, DxO offers a range of powerful raw-editing tools in the latest version of PhotoLab (previously known as Optics Pro). Of course, if you want finer control over your output sharpening then you can open the image into Photoshop instead for further edits.Ĭredit: James Paterson DxO PhotoLab 2’s amazing noise-reduction tool You can choose from three strength settings, and set whether the image is intended to be presented on-screen or as a matt/glossy print. So if, for example, you’ve chosen to export a 12x8in print at 300dpi, then the Output Sharpening controls will be tailored towards that specific size. The level of sharpening applied will vary depending on the resolution of the image. Lightroom’s Export Dialog (as well as the similar options in Camera Raw’s Save dialog) offers a set of simple Output Sharpening controls that, while seemingly basic, can be very powerful. Here, we’ll explore some of the best tools and techniques that these apps have to offer. There’s also the intriguing new ‘Enhance Details’ command in Lightroom and Photoshop. When it comes to choosing your sharpening and noise-reduction tools there are plenty of options out there, from the powerful Detail Panel in Lightroom (and identical panel in Photoshop’s Camera Raw) to the advanced noise-crunching algorithms in DxO PhotoLab or the excellent sharpening controls in Affinity Photo.
#FREE PHOTO NOISE REDUCTION SOFTWARE FOR MAC ISO#
With the right noise-reduction techniques, you needn’t worry about pushing your camera’s ISO to its upper reaches. Likewise, noise reduction is another important step for images captured with a high ISO. Not only does it allow you to crisp up details and enhance the important areas of an image, it also lets you optimise the image for specific types of output, such as a particular print size or for viewing on screen. Sharpening is a crucial part of the image-editing process.
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