Page 20 - DENOISE projects professional - User Manual
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2. Image Noise - what is it?

Image noise in digital image production occurs in many different ways.
One example is so-called low noise, a sensor-dependent noise caused by CDD and CMOS
sensors. An additional multiplier is the reading strength in digital cameras, which
produces read noise.

Hot pixels can appear with increased age of the camera or through image sensor
manufacturing defects. These are individual pixel sensors that were incorrectly
manufactured or have a significantly higher light sensitivity compared to the pixels
around them.

It generally the case, that the higher the ISO Number (the camera’s exposure setting) is,
the more visible the noise will be.

What types of image noise can you reduce or remove with DENOISE projects
professional?

    - Chroma Noise (colour noise)
         (Filter: Denoising - colour)

    - Luminance Noise (bright noise)
         (Filter: Denoising - HD)

    - Hot pixels
         (Filter: Denoising - hotpixel)

    - Salt & Pepper (individual defective pixels)
         (Filter: Denoising - hotpixel)

    - Gaps
         (Filter: Denoising - fill gaps)

    - Banding
         (Filter: Denoising - banding)

    - Colour Clouds
         (Filter: Denoising - colour clouds)

In most cases, the different types of image noise do not appear individually, but rather in
a mixed form. This is why it is important to remove noise in the correct order, as shown
above, to obtain optimal results.

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