posts by jo

local laplacian pyramids

improving contrast with the local laplacian filter

sometimes difficult lighting situations arise which, when taking photographs, result in unappealing pictures. for instance very uniform lighting on a cloudy day may give dull results, while very contrasty illumination (such as back lit) may require to compress the contrast to embrace both …

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colour manipulation with the colour checker lut module

[update 2016/07/31: there was a section about intermediate export to csv and manually changing that file. this is no longer needed, exporting the style directly from darktable-chart is fine now.]

motivation

for raw photography there exist great presets for nice colour rendition:

  • in-camera colour processing such as canon …

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second release candidate for darktable 2.0

we’re proud to announce the second release candidate in the new feature release of darktable, 2.0~rc2.

as always, please don’t use the autogenerated tarball provided by github, but only our tar.xz.

the release notes and relevant downloads can be found attached to this git tag …

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determining focus in lighttable

wouldn’t it be great if you could judge sharpness of your images in lighttable mode? this mode is limited to small and medium sized thumbnails of your images, so we can deliver the required speed to browse a lot of them.

to tell whether or not you got the …

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about basecurves

the purpose of the basecurve is to make the otherwise scene-referred linear (linear raw rgb) color look good on your output devices. this is done independently of any color managed transforms which are also done in the pipeline, so we can establish a certain look independent of the devices. this …

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have your lens calibrated!

just a quick plug for torsten’s great new service which allows you to calibrate your lens for lensfun. this will enable you to use darktable’s lens correction module with your lens if it hasn’t been calibrated by others for you yet.

all you need to do is …

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