Filter
1. Photoshop CS2 Noise Reduction Filter
The noise reduction filter is another tool taken from Photoshop Elements 3. This tool helps reduce the granular noise in photos taken under weak or high ISO values. It also helps to remove noise from JPEG image compression. The tool chooses to use from the menu "Filter > Noise > Noise Reduction". As you can see, there are adjustment tools to adjust the concentration of noise removal, the percentage of detail protection, and the number of details that will be sharpened. There is also an option to help reduce the JPEG noise that is too high compression rate. In advanced mode, users can also perform noise reduction on each channel. Users can also save specific settings as preset values.
JPEG noise options, single channel noise reduction, save presets are more features than the noise reduction filter in Photoshop Elements 3.
2. The result of using Photoshop CS2 new noise Filter
The upper and lower halves of the diagonal split are compared with the effect before and after the noise reduction
Here you can see the contrast between the results of the noisy image in Photoshop CS2 using the noise filter. In this sample, the JPEG noise removal option is also used.