Reducing noise


show more Reducing noise provides you with in-depth training on Photography. Taught by Tim Grey as part of the Photoshop CS6 Image Cleanup Workshop show less
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Reducing noise

Now, this is certainly a photo that could use a little bit of clean up. But I'm actually not worried about all the mud on the car. That's half the reason I took the picture in the first place, but rather the noise. This image was captured at a very high ISO setting, 6400 ISO in this case. And whenever you increase the ISO setting on your camera, you're not actually increasing the sensitivity of the image sensor, but rather you're applying amplification to the signal that's being captured. Amplification results in noise and if we zoom in, especially in some of the darker areas of the image, you'll see quite a bit of noise.

Noise appears as random variations in pixel values and at a pixel level. So we're seeing very, very tiny changes within the image. You might not even notice noise from a distance, for example. And that noise can appear either as color variations or as luminance or brightness variations, or in many cases, both. Here, we can see ...

Reducing noise
Video duration: 6m 16s 2h 13m Beginner

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Reducing noise provides you with in-depth training on Photography. Taught by Tim Grey as part of the Photoshop CS6 Image Cleanup Workshop

Subjects:
Photography video2brain
Software:
Photoshop
Author:
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