How to remove noise in Photoshop? How to reduce noise in a photo: noisy

To reduce the noise in any photo or image has now become realistic with the version of Photoshop CS2. This program has a function called "Reduce noise". You will not be able to completely remove it without hooking the important details of the picture object, but there is a real opportunity to significantly improve the sharpness of the photo. In this article, we will discuss the main ways to remove noise in Photoshop: colors, brightness and other artifacts of JPEG images .

Why do photos show artifacts? The fact is that not every camera is capable of capturing a quality image in the gloomy time. Even if the building is poorly lit, the photo created by a poor-quality camera is obtained with noises that need to be removed. This is exactly what Shumodav is doing for Photoshop, without causing damage to the photo.

The main types of noise in a photo

As already mentioned above, there are three main types of noise in the image. It is a noise of brightness, color and other image defects of the JPEG resolution. Approaching the captured object in some photos, you can see the blue, green and red pixels on its contours. Such an artifact is a color noise that can be reduced with the help of a specially designed "Photoshop" filter. Consider how it works. In the menu we are looking for the "Filter" item, clicking on it, select "Noise" -> "Reduce noise ..." from the drop-down list and proceed to the photo editing settings.

Filter - this is not a program for photoshop photos, but the usual additional built-in function. It is necessary to examine in more detail the dialog box that you will encounter when editing the snapshot.

Settings window

The noise reduction filter contains a large enough preview area on the left side and several sections with settings for various noise levels on the right. As in the "Photoshop" workspace, you can immediately see the changes made to the image in the settings window.

The settings contain four main scales:

• Intensity;
• Reducing noise of colors;
• Sharpness;
• Level of the contour of the part.

Most of the settings are edited in percentages using the slider, and the intensity is edited on a ten-point scale. With such easy settings and an intuitive editing window, you can easily figure out how to remove noise in Photoshop. In order to get the best quality result for reducing noise, you first need to set all the sliders to zero level and check whether the tick near the removal of artifacts JPEG. After that you can start to adjust various noise effects to the optimal level of the photo.

The viewport can be zoomed in and out, increasing and decreasing the objects in the photo. So the changes made to the image are noticeable much better.

Editing color noise

Let's start editing the photo with a reduction in color noise. What is he like? These are blue, green and red pixels around the outline of the object. We will try to remove them, using only a noise reduction filter. So, let's get started.

1. After we uploaded the photo and selected the item "Reduce noise," a "Photoshop" window appears, in which we need to enlarge the photo so that red, green and blue dots are visible.
2. Next, proceed to remove them by dragging the slider on the ruler with the name reducing the noise of colors. During editing, we immediately look in the preview area to the result. Once the multi-colored dots disappear, you can immediately stop at the desired level of the slider and go on to edit the next type of noise. It is impossible to say specifically what percentage to choose, because each photo is unique and different for its artifacts.

How to reduce noise of brightness of a picture in Photoshop

After removing the color defect, you are still not happy with the result and are still wondering how in Photoshop to remove the noise from the photo? The next stage is the reduction in the noise of brightness. Unlike the previous defect, black, gray and white dots appear in the photo. This is the noise of brightness. To get rid of it, you need to do a two-stage adjustment of the settings. First of all, you need to set the intensity slider to zero level and then start the settings. It is important to remember that photography should remain as realistic as possible. To achieve this result, you need to look at the preview window and compare it with the original image. Along with the intensity settings it is important to save the details. Therefore, we follow not only the disappearance of noise, but also the safety of the object.

Advanced filter settings

If no photo editors on the computer are able to remove noise without significant loss of image details, then advanced noise filter settings will help. They are in the same window as the usual settings, the only difference is that you need to move the checkmark from the "Main" item to the "Advanced" item. A new setting appears to the right of the editing window. You need to click on the tab with the name "On the channel". How to remove noise in Photoshop with this small add-on? The bottom line is that you can get rid of defects separately for each channel. So, for example, there is one line reducing blue pixels, the other for removing green and separate for red dots. For each of them, you can edit the intensity of the noise of brightness and save the detail on each of the channels.

Why do you need to edit these three channels? The fact is that most images are created on the basis of blue, red and green colors. It can be assumed that it is on one single channel that there will be much more noise than on the other. That is why it is effective to suppress them separately. This leads to the fact that the details of objects in the image will be much better preserved.

How to remove noise in Photoshop using a noise filter, we disassembled, now you should pay some attention to artifacts of JPEG format while saving the photo.

JPEG format artifacts

What is this defect and why does it appear? No matter which image is used: fresh, just made by a high-quality camera, or already saved in a Photoshop graphics program with the extension .jpeg - during compression, noise appears on the picture. Even it does not matter which editors of photos on the computer you use, the JPEG image will always be less high-quality, it may even look like separate pixels. To get rid of such defects, you need to check the box next to the item to remove JPEG artifacts in the noise filter filter settings window. Such actions will lead to the solution of the question: "How to improve the photo in" Photoshop "?"

Useful tips for removing noise

• Set the initial parameters of the noise filter to the zero position by dragging all the sliders to the left side. Then make the adjustment, starting with the color noise.
• Watch the result immediately in the preview window. Zoom in and zoom out the image in it for the best quality effect.
• If you can not clear the photo of noise, go to the advanced filter settings and channel out the green, red and blue points around the object.

Other graphical photo editors on a computer for image enhancement

To date, there are many different programs to remove artifacts of photos, ripples and noises. And all in order to make your pictures as high-quality and beautiful. It is not necessary to use Photoshop to remove the noise of brightness and color from your photo. You can download a specially created program for these purposes, for example, such as Color Reconstructor. Or additionally install the plug-in Adobe Photoshop Camera Raw - this is a special program for Photoshop. Photos in it can handle a huge amount, and with any known graphic extension and compression type. But in order for your picture to look as good and beautiful as possible, it is necessary not only to be able to correctly process images, but also to select a high-quality camera.