| Almost every one of us, who have digital photo | | | | does. There are several noise reduction photoshop |
| camera, saw "grainy" photos at least once. That's | | | | plugins (for both windows and macOS) specially |
| thanking to colored pixels (so-called grains, speckles) | | | | designed to remove noise grains from digital |
| that are present on photos, but do not exist in the | | | | photographs: |
| reality. | | | | The utilities allow reduction of (together and |
| There are several causes why the noise happens to | | | | separately): luminance noise and color (chroma) noise. |
| digital photos: long exposure times, heating of the | | | | Additional options include fading, blurring and sharpening |
| camera sensor, high ISO settings, matrix defects, small | | | | edges. |
| pixel size etc. The effect is very frequent to the | | | | So, removing of the most unpleasant picture |
| consumer digital cameras that are built on CCD or | | | | imperfection - the digital noise - is possible and much |
| CMOS sensors. | | | | more easier than one can imagine. Due to modern |
| Digital noise is very unpleasant artefact that spoils | | | | image processing algorithms, the plugins can work |
| really good shots sometimes. Every shot corresponds | | | | almost automatically, so noise reduction does not |
| to a unique moment which will never happen again, and | | | | require any advanced computer skills from a |
| the only thing we have to do with a cool, but noisy | | | | photographer. |
| photo is to retouch it slightly to make it perfect. | | | | Noise reduction is made easy nowadays. |
| Does such a post-processing software exist? Yes it | | | | |