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

Started 2 months ago | Discussions thread
FingerPainter Veteran Member • Posts: 8,378
Re: Science To The Rescue Again
1

Video-vs-photo wrote:

You can try different way. Just put your lens cap on and shoot with different ISO values. This way you will shoot only the noise. Without messing with other light.
Then get pictures in RAW developer/PS and play with exposure and shadows.
Then you will see what exactly noise will look like and where it is. Like colors, pattern and so on.

Then you can consider how much of this you can tolerate .

Since most of the noise is in the light you capture, this proposed method won't show you most of the noise of a typical photograph.. It will only show you the small portion of noise that is added by the camera.

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