How Do I Measure Noise Using Photoshop? And What Is A Significant Change?

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MrBrightSide
MrBrightSide Contributing Member • Posts: 696
How Do I Measure Noise Using Photoshop? And What Is A Significant Change?

Question 1: Long ago I remember reading that you could use the statistics tools in Photoshop to measure the noise in a photograph. There must be something in the program because it has noise reduction so it must be able to identify noise. How does it work?

Failing that, what other simple methods are there to measure noise in digital photos.

Question 2: Once the noise is measure what constitutes a significant difference in the noise level? Does it fall at 1 percent noisier? 10 percent? 100 percent?

Question 3:  There is no question 3. This is a reminder that no one has the patience for your thoughts about subjectivity and how everyone has a different pain threshold when it comes to noise.

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