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by Jakub

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visits member for 4 years, 8 months
seen 7 hours ago

Jun
26
comment How can I tell if a photo is B&W using a tool like GraphicsMagick?
@OneSolitaryNoob I've added a short section about sepia to my answer, it's still not perfect.
Jun
26
revised How can I tell if a photo is B&W using a tool like GraphicsMagick?
added 250 characters in body
Jun
26
answered How can I tell if a photo is B&W using a tool like GraphicsMagick?
Jun
26
comment How can I tell if a photo is B&W using a tool like GraphicsMagick?
I think this is not necessarily true. The RGB values should correlate perfectly, but this is not deducible from looking at the variance. What you really need to check is whether the color values lie within a one-dimensional subspace of R^3. This condition would capture grayscale and "colorscale" images like sepia.
Jun
8
awarded  Excavator
Jun
8
revised Can anyone recommend a good open-source photo management platforms for power users?
add DT features
Jun
8
suggested approved edit on Can anyone recommend a good open-source photo management platforms for power users?
May
8
awarded  Citizen Patrol
Apr
23
revised Is there a more affordable program than Lightroom?
added 30 characters in body
Apr
23
answered Is there a more affordable program than Lightroom?
Apr
19
comment How do I correctly enlarge thermographic images for web use?
Combining the low resolution thermo with high resolution visible light photos will enable you to create decent looking images with a high resolution; that's why the cameras take both. I just can't tell you how you do it, but you should be able to find out online.
Mar
23
answered How can I use tethering software together with a wireless trigger for my Nikon D5100?
Mar
12
comment What method is best to take backups of your digital photos?
Another general rule is also: The more copies you maintain, the more work you have. Then there is a rule: If you already have many copies, another one won't buy you much. The quintessence is that you have to find a balance between offered safety and workload, and the described plan does a good job at that.
Mar
9
comment What kind of lens is typically used for these type of night street shots?
I'm also wondering whether (and if, how) flash was used.
Feb
20
comment How can I get non-blurry photos of a wriggly baby with a point-and-shoot camera?
A flash is an alternative to a fast shutter speed – both achieving the same result of a brief exposure.
Feb
1
comment I've 'lost' a photo. I know I have it but I don't know where — how can I find it?
Does the facebook image still have the original meta data?
Oct
16
comment Is it possible to share albums privately on Flickr?
If all your pictures are public, then everyone can see all photos. You could create a new account for every album, that way it will be difficult to find the other pictures.
Oct
4
awarded  Teacher
Oct
4
answered Free program for editing pictures
Sep
4
comment Are Nikon DSLR sensors actually better than Canon's?
Then maybe one should try to process both raws with the same external noise reduction. Because maybe the difference we see on the current pictures is caused by a more aggressive reduction inside the Canon camera. If one applies enough external processing, the effect of the on chip reduction should be overplayed (unless they result in a truely better final result).