Often when taking photos, photos are overexposed, underexposed, washed out or noisy. Noise is a consequence of insufficient sensitivity of the camera sensor. They are especially noticeable in dark areas of the image. The degree of noisiness directly depends on the model and class of the camera and the exposure mode of the matrix (ISO). The lower the resolution of the matrix and the cheaper it is, the more noise will be expressed on it, even at the lowest ISO. Here are some ways to deal with them.
It is necessary
Adobe Photoshop program
Instructions
Step 1
Filter "Dust & Scratches" (dirt and scratches) removes some small part of the noise from the photo.
In order to apply the filter, open the photo in Photoshop, go to the menu Filter - Noise (noise) - Dust & Scratches.
Try different settings. Increase the radius parameter.
The larger the radius, the softer the image becomes. It is important to find a compromise: remove noise as much as possible, but not turn the photo into something blurry.
Step 2
To apply the "Reduce Noise" filter, open the photo in Photoshop, go to Filter> Noise> Reduce Noise. Turn the settings again, drag the sliders, look at the result, as soon as you like it, click OK.
As with the "Dust & Scratches" filter, this filter also softens the image, but does it a little differently. It is possible to use both filters at once.
Step 3
Removing noise from a photo can be done with artistic blur. Go to the menu Filter - Blur - Smart Blur. This will reduce noise in uniform areas of the photo where it is conspicuous, and retain detail where noise is less visible. This method is applicable for portraits.
Step 4
Noise can be removed manually by restoring details with a suitable brush. This method is applicable if you know exactly what you are doing, you have a tablet (to track the force of pressing the brush, without which it will be very difficult to work), and you can afford to spend a lot of time and energy on the photo.
