Generate a gamma curve with values

In summary, a gamma curve is a mathematical function used to adjust the brightness and contrast of an image, generated by plotting a graph with input signal values and output luminance values. It is important for improving image quality and ensuring accurate color representation. The values for a gamma curve can be determined through measurement or software programs, and it can be adjusted after generation for different images and display devices. Common applications for generating a gamma curve include image processing, video production, and printing.
  • #1
wildonion
5
2
TL;DR Summary
How to generate a gamma curve with values
I would like to use a known area and values on the x-axis to generate a gamma curve to obtain y values. Please point me in the right direction.

A = 0.07 m^2

Values on x axis
0.5
0.6
0.7
0.8
0.9
1.0
1.2
1.3
1.4
1.5
1.6
1.7

Thank you!
 
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  • #2
Do you mean like a Gamma Correction Curve for Optics? What is the context of your question?

https://ronsholidaylights.files.wordpress.com/2015/10/gamma-curve.png
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1. What is a gamma curve?

A gamma curve is a mathematical function used to describe the relationship between the input and output values of an imaging system. It is commonly used in digital imaging to correct for the non-linear response of a camera's sensor.

2. How is a gamma curve generated?

A gamma curve is generated by applying a mathematical formula to the input values. This formula typically involves raising the input values to a power and then scaling them to fit within a specific range.

3. What values are used to generate a gamma curve?

The values used to generate a gamma curve depend on the specific imaging system and its desired output. Generally, they include the input values, the desired output values, and the gamma value, which determines the shape of the curve.

4. Why is a gamma curve necessary?

A gamma curve is necessary to correct for the non-linear response of a camera's sensor. Without it, images may appear too dark or too bright, and colors may be distorted. Gamma correction ensures that the output values are proportional to the input values, resulting in a more accurate representation of the original scene.

5. Can a gamma curve be adjusted or customized?

Yes, a gamma curve can be adjusted or customized to fit specific needs. The gamma value can be changed to alter the shape of the curve, and the input and output values can be adjusted to achieve the desired output. Some imaging systems also allow for the creation of custom gamma curves for more precise control.

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