<p><em>Grayscale</em> images measure only the intensity of light, like for images that appear black-and white with monochromatic shades of gray.</p>
<p><em>Gray level</em> refers to the actual level.  e.g.: A pixel might be given a coded gray level of 128 where values range from 0 to 255.</p>
<p>There are terminology analogs to a temperature scale like <em>Celsius</em>.  <em>Grayscale</em> could be like the word <em>Celsius</em> itself that tells you what you are measuring (temperature), but a <em>gray level</em> would be analogous to an actual temperature, e.g.: 37°C.</p>

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2021-07-14T15:01:14.383Z
2021-07-14T15:01:14.383Z
Wyck
<p>What's the difference between the terms Gray-Level &amp; Gray-Scale ?<br />
I think that Gray-Level refers to the matrix of light-intensities of the Black-White digital image itself whilst Gray-Scale refers to a Black-White Image only ( without reference to the matrix )</p>

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Difference between Gray-Level and Gray-Scale?
hazelnut_116
# Difference between Gray-Level and Gray-Scale?

(Asked by: username_0 on 2021-07-14)

What's the difference between the terms Gray-Level & Gray-Scale ?  
I think that Gray-Level refers to the matrix of light-intensities of the Black-White digital image itself whilst Gray-Scale refers to a Black-White Image only ( without reference to the matrix )

**Tags:** image-processing, image


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## 1 answers

### Answer by username_1 on 2021-07-14. Score: 2 | Accepted answer

*Grayscale* images measure only the intensity of light, like for images that appear black-and white with monochromatic shades of gray.

*Gray level* refers to the actual level. e.g.: A pixel might be given a coded gray level of 128 where values range from 0 to 255.

There are terminology analogs to a temperature scale like *Celsius*. *Grayscale* could be like the word *Celsius* itself that tells you what you are measuring (temperature), but a *gray level* would be analogous to an actual temperature, e.g.: 37°C.


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