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Camera Math for computing photography values, EV, f/stops, shutt…
- https://www.scantips.com/lights/math.html#:~:text=Logarithms%20are%20used%20for%20many%20common%20purposes%20%28described,12th%20root%20of%202.%20...%20More%20items...%20
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Biology for Photographers: Why is the Aperture Scale …
- https://petapixel.com/2011/05/05/biology-for-photographers-why-is-the-aperture-scale-logarithmic/
- The logarithmic nature of human perception was known as early as the 1800s and was eventually summarized by German psychologists as the …
Understanding Log-Format Recording | B&H eXplora
- https://www.bhphotovideo.com/explora/video/tips-and-solutions/understanding-log-format-recording
- Once touted as a headlining feature on only the highest grade digital video/cinema cameras, such as the Sony CineAlta line, log (logarithmic) recording has become a mainstay on more affordable professional products, such as the Canon EOS-C series, and more accessible through prosumer products like the Sony α-series mirrorless cameras. One of the reasons log …
COMMON LOGARITHMS
- https://www.tpub.com/photographyadv/14.htm
- One of the main uses of logarithms in photographic quality assurance is to take the numbers used to indicate exposure in characteristic curves and reduce them to a manageable form. For example, the. Table 2-2_-Common Logarithms Between 1 and 10. ExT=H. When you convert exposure to logarithmic form, both density and exposure are on the same scale.
What is the significance of logarithm in image processing?
- https://www.quora.com/What-is-the-significance-of-logarithm-in-image-processing
- This belongs to a class of intensity transformations called the log transformation. s = clog (1+r), where. c is a constant, usually c = 1, r ≥ 0, r is the range of input image pixels, usually [0, 255] This maps a narrow range of low intensity values in the input into a wider range of output levels.
Camera Math for computing photography values, EV, …
- https://www.scantips.com/lights/math.html
- Logarithms are used for many common purposes (described as powers of 2 or 10 or e, etc): Photographic exposure increments: 2 EV = N²/t so EV = log₂(N²/t) Ph scale of acidity in chemistry: Ph = -log 10 (hydrogen ion concentration).
Black & White World: A Celebration of Photography. Photoshop …
- http://www.photogs.com/bwworld/testexposures.html
- The most important logarithms in photography are those of base b = 2. Logarithms of base b = 10 are known as common logarithms. Logarithms of base e = 2.71828… are known as natural logarithms. (E is the base of the natural logarithm function, derived from the series 2 + …
How to Write in Logarithmic Form – mathsathome.com
- https://mathsathome.com/logarithmic-form/
- The focal ratio in photography is a logarithmic scale The strength of a Wi-Fi signal is measured on a logarithmic scale Computer algorithm efficiency is measured on a logarithmic scale Radioactive decay and half-life is calculated using logarithms Calculating interest rates Calculating growth of populations How to Convert to Logarithmic Form
Logarithms — What, Why and How. Understanding the …
- https://towardsdatascience.com/logarithms-what-why-and-how-ff9d050d3fd7
- Note that logarithms are always calculated for a base. The examples provided above are for base-10 which is known as common logarithm. The other frequently used “bases” are 2(binary logarithm) and a very special number ‘e’ …
Introduction to Logarithms - Math is Fun
- https://www.mathsisfun.com/algebra/logarithms.html
- Sometimes a logarithm is written without a base, like this: log (100) This usually means that the base is really 10. It is called a "common logarithm". Engineers love to use it. On a calculator it is the "log" button. It is how many times we need to use 10 in a multiplication, to get our desired number. Example: log (1000) = log10(1000) = 3.
Logarithm - GeeksforGeeks
- https://www.geeksforgeeks.org/logarithm/
- Solution: Apply logarithm on both sides log (121/10) (121/10) x = log (121/10) 3 x = (log 3) / (log 121 – log 10) x = (log 3) / (2 log 11 – 1) Question 9: Solve log(2x 2 + 17)= log (x – 3) 2 Solution: log(2x 2 + 17)= log (x 2 – 6x + 9) 2x 2 + 17 = x 2 – 6x + 9 x 2 + 6x + 8 = 0 x 2 + 4x + 2x + 8 = 0 x(x + 4) + 2(x + 4) = 0 (x + 4)(x + 2)=0 x= -4,-2
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