Digital noise in your pictures is referred as aberrant pixels or tiny speckles which disrupt the exposure and look of your photo. It may cause due to various reasons like high ISO value, low light condition, long exposures, poor-camera quality etc. To avoid noise in your image you can follow some basic steps of the photography which are discussed here. Additionally, you can use built-in Photos App on Mac to remove noise from your images. Let’s talk about ways to avoid and remove noise from your images on Mac.
Follow General Settings While taking Pictures
Set ISO Settings Right:
In general terms, ISO settings is known to be a level of sensitivity of your camera device to the available light. Thus, setting ISO value right become important to take noise free pictures. High ISO value causes serious damage to picture quality when not supported adequately by the camera device. Usually, high ISO value while taking pictures create a group of pixels together which capture more light and cause more grain or noise in images.
ISO settings at right value as per your camera device play an important part to take noiseless pictures. Alternatively, you can opt “Auto ISO” feature on your device which helps you set ISO value as per shutter speed, light condition etc. The next important thing is to open camera aperture to its widest possible settings to avoid noise. Better lenses also help you take noise free pictures.
Check Camera Exposure:
Setting camera exposure at a right level may help you take smooth and fine pictures. Most recent camera devices are equipped with better techniques to provide advanced digital sensors to maintain and manage shadow of images and highlights as well. Latest technique in camera devices even allows you to overexpose a bit while taking pictures which you can further manage in post-processing. During post-processing of picture, you can put the highlights down at the right level and set shadow look brighter for improved image quality. Advanced camera sensors capture better details in picture highlights avoiding overexposure issue.
Shoot in RAW format:
RAW format is an effective way possible to get best out of your images. While taking pictures, you needn’t shoot at RAW format all the time but you can switch to this format when you find low light conditions or find it little too dark to take a picture. The reason behind switching to RAW format is that it provides you more flexibility to find and remove noise and increase exposure in post-processing of your pictures compared to JPEG format. As JPEG photos have some compression applied to them already, it has some noise in it called JPEG artefacts.
How to remove noise from images on a Mac:
Mac offers an impressive tool to help you edit your images in multiple ways in the form of Photos App. This effective photo editing app on Mac, even helps you denoise your images effectively. It helps you remove all graininess or speckles referred to as noise in photos with built-in feature. It even works with images in RAW file format. To remove noise in images on Mac using Photos app, follow these steps.
- Double-click on an image and then tap the Edit button in the toolbar or use the Touch bar.
- Click the Adjust button.
- Now in the Adjustment pane, tap on the Add button and select Noise Reduction.
- Drag the Noise Reduction slider until you are satisfied with the results.
Conclusion: You can follow some general techniques while taking pictures to reduce noise in your images. These techniques include setting ISO value right, checking camera exposure, shooting in RAW format, being careful with long exposures, precautions with available light, doing post-processing right and much more. Additionally, you can use built-in Photos app on Mac to reduce noise effectively