Nidelva river through Trondheim Norway

Nidelva river through Trondheim Norway
by Saaru Lindestokke                

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2

To concentrate on what you should do, I suggest you stick to the raw+jpeg. Worst case you need another card and storage is cheap. Do you actually ever get close to filling all your cards? If not, you don't need to worry. My reasoning is that, like you (by the sound of things) I like to print or otherwise use a lot of my pictures as shot. But sometimes a ...


4

Although the context is different, this is fundamentally a question of the difference in compression levels. ImageMagick identifies them as 81 and 95 — that's not a standard number, but it's generally true that 95 is "pretty high quality" and 81 is "medium-low quality". The issue of RAW vs. JPEG is a red herring here; it just happens that the embedded ...


5

What you are seeing in your example is not random noise. It is what is referred to as compression artifacts and is what happens when an image is compressed too much to make the file size smaller. Instead of trying to use noise removal, simply use a levels or curves layer. Or even try just boosting the contrast. You have a white background and dark text ...


2

I believe MacAdam Ellipses would shed some light on what you're looking for. Another link which also contains a graphical representation: http://www.kurabo.co.jp/el/world/en/room/color/page1_3.html Long story short: changing color X by "percentage" a can cause it to be perceived differently, while changing color Y by the same percentage would not.


0

If I understand your question correctly, you are asking whether digital photographic camera can produce colors invisible to the human eye. If that's the case, images produced by digital cameras can after processing in a raw converter contain colors that are invisible to the human eye, if you convert using color space with a large color gamut like the ...



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