Noise is an extremely important factor in image quality, almost as significant as sharpness. It is closely related to dynamic range, which is the range of brightness that a camera can reproduce with a reasonable signal-to-noise ratio and contrast for the scene being photographed. Since noise is inherently linked to the quantum nature of light and thermal energy in fundamental physics, it is almost impossible to completely eliminate.

In digital single-lens reflex (DSLR) cameras with large pixels (4 microns or larger), noise is often so low that it is barely noticeable. However, in compact digital cameras with tiny pixels, noise can become quite significant, especially at high ISO speeds. Even with the use of noise reduction software, noise may still be apparent in certain scenes, and excessive noise reduction can have noticeable side effects.

ColorSpace Technology offers a range of testing equipment and analytical software for noise testing, supporting the following standards:

• · ISO 15739-2013: Photography - Electronic still-picture imaging - Noise measurements
• · ISO 14524: Photography - Electronic still-picture cameras - Methods for measuring optoelectronic conversion functions (OECFs) 

Related products include:

• · ISO 14524 Test Chart
• · ISO 15739 Test Chart

For more information, please contact: sales@colorspace.com.cn