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Topaz Labs, LLC

A Video and Image Enhancement Company

TOPAZ DENOISE V2.1

Users Guide

October 2008

Copyright 2008 Topaz Labs, LLC. All rights reserved.

http://www.topazlabs.com
http://www.topazlabs.com/http://www.topazlabs.com/http://www.topazlabs.com/


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More information about Topaz DeNoise:http://www.topazlabs.com/topazlabs/03products/topaz_denoise/ 2

TABLE OF CONTENTS

Introduction ................................................................................................................... 3

Before You Start ............................................................................................................ 4

The DeNoise User Interface ................................................................................................................. 4

Other Host Programs............................................................................................................................ 5

Image Modes ........................................................................................................................................ 6

Using Presets ................................................................................................................ 7

Applying Presets ................................................................................................................................... 7

Defining Presets ................................................................................................................................... 7

Settings and Parameters .............................................................................................. 9

MAIN ......................................................................................................................................................... 9

ADVANCED ............................................................................................................................................ 10

Using Topaz DeNoise .................................................................................................. 12

http://www.topazlabs.com/topazlabs/03products/topaz_denoise/

for detailed tutorials, tips, and tricks
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Introduction

Topaz DeNoise is an advanced noise reduction plug-in for Adobe Photoshop. It uses a new and

powerful method of filtering noise a generation above the popular wavelet based algorithms that

Topaz Denoise V1.x and almost all other noise reduction products currently use. This new technology

that we've developed over the past year maximizes image details while reducing noise.

Topaz DeNoise's main focuses are:

1. Remove luma and chroma noise from photos quickly and efficiently.

2. Rescue underexposed images by removing the excessive noise that accompanies all

brightening exposure adjustments.

3. Keep image details intact and sharp and restore details previously obscured by noise.

4. Keep the noise reduction process simple, powerful, and repeatable by efficiently and

automatically detecting the amount of noise to be removed without requiring excessive user input.

Note that Topaz DeNoise always performs best on true RAW images, so be sure to turn off all

noise reduction and sharpening from your RAW converter.

In the following pages are explanations of the different functions and parameters in Topaz

DeNoise, as well as a few quick tutorials for certain common situations. Please visit the Topaz DeNoise

website athttp://www.topazlabs.com/topazlabs/03products/topaz_denoise/for more tutorials, tips, and

tricks! As always, if you have any questions regarding any of our software, feel free to contact us at our

support page:http://www.topazlabs.com/support.
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Before You Start

Topaz DeNoise is easy to use because it analyzes the image to detect the existing noise level

when you invoke the filter. Most of its parameters are relative to detected noise level. This means that a

setting of 1 removes the amount of noise that the filter believes to be correct. In most cases, user can get

good results by manipulating just that the main parameter slider. However, if you need extra functionality,

we'll be explaining every setting throughout the rest of this guide.

First, well go over the Topaz DeNoise user interface. Then, well go through what each

parameter in each tab does. Finally, well go through some common noise problems and how to solve

them using Topaz DeNoise.

The DeNoise User Interface

The Topaz DeNoise user interface is shown as follows:

All the GUI items, such as buttons and

parameter settings have context-sensitive help,

which is disabled by default. This means that if

you place a mouse cursor on an item for one

second, a help balloon will pop up and display

useful information regarding that item. To enable

context-sensitive help, uncheck Enable popup

help on each item box. For a link to online

Topaz DeNoise resources, click the bigger

Help button.

The Preview window always displays a portion of the filtered image by default.

To pan the preview image, click and hold the left mouse button on the preview image and drag it

around. When you let go of the mouse button, the new portion of image will be processed according to
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the current settings and the result will be displayed. The checkbox Pan faster controls the speed of the

pan action. Check it to pan around a large image.

There is an auto-brightening feature in Topaz DeNoise so you can see better how much noise

youre removing. Sometimes images are so dark that you cant see the noise too clearly, so this feature

allows you to see exactly what noise is being removed. Please note that only the preview will be

brightened, and if you press OK the resulting image will only have the noise reduction applied and will

retain its original brightness.

To compare the filtered and un-filtered images, click and hold the View Original Image

button to switch to the unfiltered image. Letting go of the button will switch back to the filtered image. You

can toggle the filtered and un-filtered image back and forth like this in order to see the before and after.

You can zoom in orout of the preview image clicking the +, or- buttons below the preview

image, and you can resize the window as well. The 100% button will zoom back out to true 100% view.

All the filters parameters are in the tabbed panel under the image preview. The following

sections will explain each tab in detail.

The About tab contains some information about the plug-in. We appreciate any suggestions or

comments and would really love to hear from you, so be sure to get in touch! (Your email address will be

kept strictly confidential.) Also make sure to subscribe to our newsletter on our homepage

http://www.topazlabs.comto receive new tutorials and free product updates.

Other Host Programs

In Windows, Topaz DeNoise is supported by most host applications that support Photoshop plug-

ins. This includes Irfanview and Paint Shop Pro, although other host programs may also support Topaz

Adjust.

For both Irfanview and Paint Shop Pro, first download and install Topaz DeNoise to the default

location.

To install Topaz Adjust in Irfanview, make sure youve downloaded and installed the 8bf plug-

in add-on, available on the Irfanview webpage. If so, in Irfanview go to Image -> Effects -> Adobe 8BF

filters. In the screen that pops up, select Add 8BF fliters and navigate to the C:\Program Files\Topaz
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Labs\Topaz DeNoise\Plugins folder and click OK. Youll then see it in the Available/Loadable 8BF Filters

section. To use Topaz DeNoise in the future, simply go to Image -> Effects > Adobe 8BF filters again and

select Topaz DeNoise.

To install Topaz DeNoise in Paint Shop Pro or PhotoImpact, first lauch PaintShop Pro or

PhotoImpact. Go to menu File -> Preferences -> File Locations. Select Plug-ins in the File Types list and

click Add. Choose C:\Program Files\Topaz Labs\Topaz DeNoise\Plug-ins and click OK. The plug-ins will

be available to use from Effects -> Plugins.

Image Modes

Photoshop and other host software support many image modes including as Grayscale, RGB,

LAB, CMYK, etc. Images can also be 8, 16, or 32 bits per channel. Topaz DeNoise supports both8 bits

per channel and 16 bits per channel.

Topaz DeNoise supports RGB mode only. To work on black-and-white images, first convert them

to RGB mode.


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Using Presets

Presets are a great way to speed up and simplify the whole process of using Topaz DeNoise.

They function as snapshots of your current Topaz DeNoise parameter settings that you can recall and

reapply at any time in the future. There are a few default presets and you may save more, but experiment

with the sliders to get best results for each photo.

Applying Presets

Applying a previously defined preset is easy and intuitive. Simply click on a preset and the preset

description will display on the left. Clicking the Apply Preset button on the right will change all the

settings in Topaz DeNoise to match the preset. You can also double-click on a preset if you prefer. At this

point you may still go through the tabs and tweak the parameters before you apply the filter to the image.

Defining Presets

Sometimes its convenient to be able to define presets and save your best settings for later use.

First, adjust the Topaz DeNoise parameters until youre satisfied with the result and want to create a

snapshot of the settings. Then, click on the Presets tab and click the Save As button.

Enter a preset name and optional description and click OK. Please note that if the name youve

entered is the same as a preset youve already defined, instead of creating a new preset Topaz DeNoise

will just override the first one.


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For Windows, in the Save As dialog box, you must save to the Topaz DeNoise Presets folder or

else the filter wont detect the preset. Its usually located in C:\Program Files\Topaz Labs\Topaz

DeNoise\Presets unless youve opted to

install Topaz DeNoise into a different

directory. To finalize the preset, simply

name the filename whatever you like and

save a new .tpp Topaz preset file.

If youre using a Mac, you may

skip this step. It will automatically save

into the correct folder.

Your new preset is automatically saved into the Topaz DeNoise presets menu. To apply it later,

just select it and click Apply Preset. You may then go through the sliders and tweak them until youre

satisfied with the settings for that particular image. Then, press OK on the upper right corner of the filter

to apply the DeNoise on your image.


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Settings and Parameters

Topaz DeNoise has parameters that are in two tabs: Main and Advanced. Although you can get

a great result by just using the Main tab, on some rare occasions fine-tuning may be desirable. What

follows are some guidelines to follow and some tips to keep in mind for each of the parameters.

MAIN

The Main tab consists of just two sliders, but usually these two are sufficient for most noise reduction

purposes.

Noise Suppression

The main parameter in the filter. This is a relative parameter, which means that Topaz Denoise

automatically tries to detect and eliminate the correct amount of noise when its set at 1. A setting

of less than 1 removes less, and a setting of more than 1 removes more noise but may also

soften the image.

Topaz DeNoise can detect ISO noise fairly accurately from RAW or high quality JPEG images,

but its not always accurate. This is the parameter that youll be working with the most.

Blur Reduction

An intelligent de-blur function that uses de-convolution technology rather than simple sharpening

techniques. If you get blurry or soft edges after removing noise, try bumping up this parameter.

Dont set this parameter higher than necessary because excessively high values often result in

ringing at strong edges.


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ADVANCED

The Advanced tab gives some advanced parameters that you can use to fine-tune the noise reduction

processing.

Mode

There are four modes that you may use in Topaz DeNoise: Fast, Normal, Better,and Best.

These go in order from fastest to best-quality. The default setting is set to Better. If your image

only has very minor noise, Fast orNormal mode should do fine. If you want the absolute best

quality and dont care about processing speed, try Best quality.

Color Noise

Controls the amount of color noise to reduce. If youre finding that your image contains random

bits of color that wasnt there in the original, consider increasing this value. If parts of your image

become desaturated, decrease the value of this parameter.

Smoothness

Controls the smoothness of the image. This parameter is an edge-preserving smoothing filter. Its

best used to remove occasional artifacts caused by the regular noise suppression slider. You can

also creatively overapply it for an over-smoothed or oversimplified effect.

JPEG Fixer

Reduces JPEG compression artifacts effectively. Set at 0 if youre not using JPEG images, or if

you cant see any noticeable artifacting like checkerboarding or mosquito noise.


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Add Grain

Adds some random grain back into the image to make it look more natural. Set at 0 if you dont

want any grain added. The default setting here is 0.05.


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Using Topaz DeNoise

Topaz DeNoise is quite easy to use, but heres a simple workflow to get you started on your noisy

images:

1. Open up the image in Photoshop. If its a RAW file, make sure that your Camera RAW isnt applying

any noise reduction or sharpening to the image. By default it does, so make sure you go into the third tab

and set the Amount and Luminance, Color noise reduction to 0. The Camera RAW sharpening and noise

reduction options are located here:

2. After you bring the image into Photoshop, make a duplicate layer of the background by pressing

Ctrl/Cmd-J while the Background layer is selected. Well be working on the duplicate layer. Although this

isnt necessary, its good Photoshop practice.

3. With the new layer selected, go to Filter -> Topaz Labs -> Topaz DeNoise. The default settings should

look alright, but adjust the parameters until youre happy with the result.


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4. As the very first step, adjust the Noise Suppression parameter to the point where the noise is gone but

the details are still intact. If the default settings look good then you can just leave this parameter as it is.

Many times, this step is all it will take to make the image look good, so if thats the case here you

can just press OK.

5. Second, look at the edges in your image and determine whether they could use some blur reduction.

Usually most photos will require some blur reduction, unless youve downscaled the image. A good range

to start out with for the Blur Reduction parameter is 0.25-0.50. Adjust as necessary until you see the

edges come into focus, but be sure not to overapply it or else youll get edge halos.

6. If necessary, go to the Advanced tab. If you see random color in the image that isnt actually part of the

photo, try increasing the Color Noise setting. On the other hand, if youre noticing that parts of your image

are being desaturated, its time to bring that setting down.

7. If you noticed some artifacts left over from your noise reduction, try increasing the Smoothness slider.

Dont increase it too much, though, because this will cause you to lose detail in the image. If the artifacts

are JPEG compression artifacts like mosquito noise or checkerboarding, increase the JPEG Fixer

parameter instead.

8. If you want to add a little bit of grain, increase the Add Grain parameter. Click OK and youre done.


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If youd like video tutorials and comparisons for Topaz DeNoise, theyre located at the Topaz DeNoise

product website. We update this site frequently with more tutorials, examples, and techniques. Its located

at:

http://www.topazlabs.com/topazlabs/03products/topaz_denoise/

Check there periodically for new Topaz DeNoise information, or follow us on Twitter at

http://twitter.com/topazlabsfor instant updates and new tutorials. If you ever have any questions,

suggestions, or comments, feel free to contact us athttp://www.topazlabs.com/support/.
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