Tag: image processing

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Foveon Workflow: How to increase High-ISO headroom for color photography?

As I announced a couple of days ago, today I’ll present a workflow that further increases the High-ISO range of Merrill and Quattro Foveon sensors when taking color pictures. In contrast to the blue channel workflow, which is able to improve noise performance in black-and-white images almost without any side-effects, this particular workflow is a ...

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More pictures and some thoughts on post processing and future blog entries

The comparison of noise reduction algorithms in X3F Tools and SPP 6.3 (part 1 and 2) helped me understand how great the additional potential in Foveon images that can be released with relatively easy post-processing actually is. Currently, I’m testing a number of editing steps (noise reduction and sharpening) which I’ve come across in the ...

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Fascinating: experimental algorithm removes reflections and distracting elements in the image foreground

Even though there are ways and means to remove annoying reflections in photos that have been taken through glass (e.g. with a polarisation filter), there is nothing wrong with having the possibility to get rid of them later on with a fully automatic image editing algorithm. The software filter, which is being developed by a ...

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SPP 6.3 vs. X3F Tools (Kalpanika): coloured vignetting and noise performance

Yesterday I uploaded a couple of photos which I had taken with the DP2 Quattro as X3Fs, then converted into the DNG format with X3F Tools (Kalpanika), and edited in Lightroom 5.7. Most of these photos are nothing out of the ordinary, but in two shots, taken only seconds apart, it is possible to see ...

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New photos taken with the DP2 and more insights into the Kalpanika alias X3F Tools

If you have never heard about Kalpanika, aka the X3F Tools, then you should have a go at this blog entry. In short, it is a X3F to DNG converter with excellent noise reduction, but at the moment there is still a long row to hoe. One of the current issues is the “Italian Flag” ...

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X3F Tools: a cumbersome but very effective X3F-to-DNG converter

The X3F-to-DNG converter which was developed under the codename “Kalpanika” has now been released as “X3F Tools 0.53”. As far as I understood it, it was originally planned to make Kalpanika into a full-fledged RAW converter. This task was now abandoned as, according to the four-men-strong programming-team, there was no way to get rich with ...

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A three-minute-long video shows the restoration and coloration of a badly damaged photo

Almost two years ago I wrote about the ColorizedHistory Community on Reddit, whose 85,000 members have devoted themselves to colourising historic black-and-white photographs. In order to give anyone who might be curious an idea of how much work is involved in this, I included a video tutorial by Mads Madsen, who was one of the ...

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Lightroom 6 and the GPU deceleration

When I updated from Lightroom 3.5 to 5.6 at the start of last year, I noticed after just a few photos that the new version is running more slowly on my PC. In fact, a new version of an image editing software should be optimized and perform better than the old one. At least, if ...

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Are You Satisfied with the Performance of Your Image Editing Software?

Today, I read that Adobe will stop supporting 32bit operation systems in Lightroom 6. Allegedly it isn’t possible to use all features of current OS’s, as long as you support old 32bit operation systems. Despite the actual alpha phase – open beta is apparently scheduled for later – there is already much speculation about the performance ...

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Optimizing color processing in SPP

In the past few days I have tried to further optimize my SPP 6.2 color processing workflow, I introduced in this blog entry. What I particularly like about those settings is that they deliver reproducible results for photos taken in sunny conditions, cloudy skies and light shadows and that the colors appear very vibrant. In ...