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

Started 2 months ago | Discussions thread
tbcass
tbcass Forum Pro • Posts: 44,591
Re: How Do I Measure Noise Using Photoshop? And What Is A Significant Change?

57even wrote:

I'm still waiting for you to explain what characteristics you are referring to.

Chroma vs luminance? Banding?

I have compared thousands of images from different cameras over the years, and as long as the images are not heavily processed (for instance if we use the default Adobe profiles) the noise structure is basically similar at a pixel level.

Here's a comparison between 2 sensors that according to DXO are within 1DB of each other but the noise characteristics are completely different.

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Tom

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