I think NeatImage does that automatically but with its own algorithm. It won't de-noise the contour areas and it won't apply sharpening on low contrast parts of the image. I find it quite good and quite useful for batches of pictures when I need it.
12800 ISO. Screenshot from a Windows machine. Left: Topaz DeNoise AI test version v3.7.0 standard settings. Right: Neat Image v9.0.2 standard settings. Both processed from exactly the same tiff exported from darktable. Topaz provides a smoother image. Neat Image maybe a little more vivid an image.
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Better cameras generate less image noise. Neat Image processing minimizes the noise out of your photos. So your point-and-shoot camera can produce pro-quality results. Neat Image reduces image noise so that shots taken at faster shutter speeds and higher ISO become more usable with Neat Image post-processing.
Neat Image is programmed to filter noise more effectively, and preserving more image details, than current research has indicated is possible. A recent development in noise reduction that is usually regarded as state of the art is wavelet-based denoising. However, Neat Image uses an even more efficient proprietary approach to noise reduction. Our noise filtering method distinguishes more effectively between noise and details in noisy images than wavelet denoising. As a result, Neat Image reduces noise better and preserves more true details in digital photographs.
Neat Image provides you with direct control over all noise filter settings. You can adjust the noise level estimation and specify how much of the detected noise must be removed for every color channel component and spatial frequency component of input image. The default filter settings work very well for most images. But if you want to tweak the filter settings, then all the controls are directly available.
Neat Image provides an intelligent sharpening filter. This sharpening filter works together with the noise filter to avoid noise, and makes the actual image details look sharper without any degradation of image quality (which is usually inevitable with noisy images). Neat Image sharpening also has a halo-free mode which reduces halos that tend to appear along edges in images which are sharpened.
Besides regular 8-bit images (like most JPEGs), the Pro edition of Neat Image also supports 16-bit and 32-bit per channel format in both RGB and grayscale images. This allows Neat Image to process higher bitdepth images from modern DSLRs without loss of accuracy, support HDR workflow using 32-bit data, and integrate better with modern image editors like Photoshop CC.
When a ready-made profile set is available, Neat Image can automatically select the profile that best matches the input image based on its EXIF data with the help of the Auto Match feature. This capability is especially useful in batch processing and Photoshop actions.
Neat Image is also available as a plugin for Photoshop (or Photoshop Elements, or another compatible editor). Neat Image is fully integrated with Photoshop: you can apply noise reduction exactly where it is required: in a layer, channel or selection. Using Photoshop's selection tools, you can apply noise reduction with different strength to different parts of the image. You can use Neat Image Pro plug-in as a smart filter in Photoshop CS3 or newer.
Any file format supported by the plug-in host can be processed by the Neat Image plug-in. For example, you can open a PSD, TIFF, JPEG, JPEG2000, RAW, DNG, etc., image in Photoshop and then directly process it with the Neat Image plug-in. This streamlines the use of Neat Image noise reduction in your workflow.
Neat Image provides instant feedback of filtering results so you can achieve just the appearance you need. When adjusting the filter settings, you can immediately see the preview results in any area if the selected image or in the whole visible part of the image. You can manually select any area or just move across the image and zoom in to specific parts to get a better feeling of how the filtered image will look like as compared with the original.
Neat Image is an image noise reduction software by ABSoft. It is available for Windows (stand alone, or Photoshop plugin), Mac OS X (stand alone or Aperture or Photoshop plugin) and Linux (stand alone).
If you save an image in Neat Image at 100%, which will make the file bigger, I dont want to have to go BACK to photoshop to reduce it again. Doesnt make sense. If Neat Image is near the last step in the process, saving at 96% to 98% keeps the image near the file size you saved it at.
I have my editor permanently set to save/make jpg files at the highest setting which results in no reduction [ or very little ]. However when sending images by email or posting to my webpage I normally reduce them both in size [ 4500 across pixels down to around 750 pixels ] which reduces the file size from Mb to Kb but also apply compression which then reduces the say 400Kb file down to the quicker uploading/downloading 40
If you are posting to public sites I believe they automatically impose these changes on your file but as I organise my website myself it is up to me to think about the viewer. So long as the viewer doesn't enlarge their image it is normal for a 40Kb file to look 'good' as an e-mail image on a 'normal' screen. [ large lap-top?] 100Kb is PDG :-)
A pattern I noticed throughout my tests was that practically every image that DeNoise AI was applied on had a few areas that were either completely smudged due to excessive NR or had too much noise due to no/low NR. My theory is that DeNoise AI sometimes fails to separate areas of detail and noise in the image. The problem with this is that there is no opportunity to manually reduce/apply NR in those areas; it can only be done by the software.
Noise, it seems to be everywhere, no matter what ISO you pick, and how good your camera, noise can and will appear. In most cases, it will detract from your image. With Digital Cameras, in relation to noise, major improvements have been made over the last few years and continue to be made. Some of these improvements may make the issue of noise mute in certain cameras; however these improvements tend to be in the higher priced cameras. It also takes longer for improvements to filter down to the more moderate systems. In some cases, no matter how good the camera, you are still going to get noise. Examples are:
Sky or clouds will very often pick up more noise than is ideal. This happens for many reasons, the most common being you must underexpose the sky to get the correct exposure for the rest of the image. Since these portions of an image often lack other details to break up the area, the noise present will be more noticeable.
After reading some forum entries on new noise tools, one name kept coming up, Neatimage. I finally got interested enough to try the tool after reviewing some ISO 800 shots that had been posted. The results were most impressive. I started with Neatimage Demo, which the company still allows you to get as shareware, and after a couple of uses, I quickly sent them my check for the Home version of the tool. The results I was getting were excellent. Since I pulled down my first version, Neatimage has gone through many revisions and version changes. At the time of this writing, they offer two versions, Neatimage Home and Neatimage Pro both versions 2.1.x. For the subject of this review I will be using referencing Neatimage Pro. The main differences between the Pro & Home versions are that the Pro version will support 16 bit files.
The Neatimage software family is a standalone set of programs that were written for Windows. There is currently no Mac support. I have used it in Win98 & W2K and assume it works with XP. If you are a XP user you should either contract Absoft via email (parent company) or try the demo version first.
In the screen shot above you can see the basic layout of the tool. For the purpose of this review, I picked a random image that I took during one of my fall shoots. Neatimage has two main working areas. The first one is across the top with the 5 selection tabs (circled in red) and the other is down the right-hand side of the screen (circled in blue) where you will see image information and filter information. This right-hand side area is the main information portion of the tool. The selection tabs are from left to right:
You will note that for the purpose of this screen shot, I have the image view set so that you can see the whole image. If you wish to zoom in on the areas that have noise, then you simply go to the magnification tool right next to the right-hand column (circled in Black) and then select the up arrow. In this image, I want to clean up the blue sky in the upper right hand portion of the image. To start this process I will zoom up the image till I have the sky at 100% view.
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