Suppress Noise on a Rendered Image Using AKVIS Noise Buster
 

 
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Tutorial: AKVIS Noise Buster

Suppress Noise on a Rendered Image

 

Questa pagina al momento è usufruibile solo in lingua inglese.
Se desideri ottenere la licenza per la traduzione dei nostri testi (3-4) scrivici a team@akvis.com.
 

The author of the design project is Innokenti Chtchavrovski.

Original image Result

The picture below is the result of rendering a 3D interior design model in 3DS MAX.

A design project

Rendering is a complex process of transforming a 3D vector model into a 2D bitmap image taking into account the visual angle, illumination, materials, texture overlay, etc.

Everyone engaged in the creation of interior design models knows that a quality rendering requires a lot of time and resources; it may take hours and hours.

And what if the customer is already on the doorstep and you do not have time for a high quality rendering?

The only way out is to render the picture with the average settings and then process the image in a photo editor, for example in Adobe Photoshop. It will save you time.

The image above has been rendered with the average settings and in a relatively short period of time. But this affected the quality of the result: you can see noise in shadows and on the metal surface of the bar.

Open the image in Adobe Photoshop (or any other photo editor) and apply the initial correction with the tools Levels and Color Balance.

Correct lightness and color balance

Now comes the noise correction. We will apply the AKVIS Noise Buster plug-in compatible not only with Adobe Photoshop, but with many other photo editors as well (consult the Compatibility page).

On the metal surface of the bar the noise is especially pronounced.

Noise on the metal surface

Call the AKVIS Noise Buster plug-in. Do not complicate the task, just use the Auto Filtering preset.

The program will analyse the image, estimate the level of noise and offer its noise reduction settings.

The result will be shown in the preview area in the After tab.

Automatic Filtering

The result of the automatic filtration is good: now there is much less noise.

Before the noise reduction After the noise reduction
Before the noise reduction After the noise reduction

There is no need in removing the noise completely; the main idea is to improve the overall impression from the image. The image filtered with the automatic settings is good enough to be shown to the customer.

Automatic Filtering

If necessary, you can adjust the parameters manually. The method is intuitive — if you notice that the small details (the wood texture, for instance) disappear with the noise, drag the sliders to the left. If you want a smoother picture drag the sliders to the right. Read the hints in the lower part of the Settings panel to understand the effect of every parameter.

Adjusting the parameters

The adjustment will take no more than 5 minutes. The result is a noise-free picture.

Adjusting the parameters

Now we will filter the whole image with the chosen settings. Maybe the final image is not very realistic, but it pleases the eye.

Noise-free picture

Afterword:
Nevertheless, the author took the "auto filtering" image to the customer. It's only a matter of taste though.

 

 
Funzionamento Funzionamento
   — Area di lavoro — Area di lavoro
   — Come usare il programma — Come usare il programma
   — Elaborazione batch — Elaborazione batch
   — Preferenze — Preferenze
Esempi Esempi
   — Ragazza da copertina — Ragazza da copertina
   — Rimozione dell'effetto moiré da scansioni — Rimozione dell'effetto moiré da scansioni
   — Riduzione del rumore da una foto di studio — Riduzione del rumore da una foto di studio
   — Eliminazione del rumore cromatico — Eliminazione del rumore cromatico
   — Sensibilità ISO e rumore digitale — Sensibilità ISO e rumore digitale

 

Noise Buster v. 9.0 - 10-giorni di prova gratuita:  Download

 

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