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The sharpening tool lets you adjust how sharp or how soft the details are in your image. The Amount control adjusts the overall sharpness, while the Sensitivity limits what portions of your image are sharpened. |
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High Sensitivity values results in less of your image being sharpened. If sharpening your image makes noise or high-detailed areas too distracting or sharp, then try raising the Sensitivity value.
Note: Fine-detailed control tools, like Sharpening, should be applies and judged while looking at a 100% Zoom of the image, either in the main Preview window or in the Magnifier
Noise Ninja Registered - Pro Only Noise Ninja™ is a state-of-the-art noise reduction system developed by PictureCode Inc that can be used as a stand-alone product or through the Bibble. Noise Ninja technology achieves an unprecedented balance between noise suppression and detail preservation, providing natural-looking results without artifacts. To use the Noise Ninja Registered tool panel, you must be a registered user of Noise Ninja. For more information about Noise Ninja (or to purchase a licence), visit the PictureCode company web site at http://www.picturecode.com. |
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The Noise Ninja Registered tool includes the following controls:
| • | Enable: Quickly toggles Noise Ninja on or off |
| • | Coarse Noise: Removes low-frequency noise in the Chroma channel |
| • | Auto Profile: Create a noise profile for this image instead of using the default profiles. The profiles provided with Bibble 5 are built using controlled conditions and usually provide results superior to Auto Profiled results. |
| • | Turbo Mode: Perform faster noise reduction. Enabling this can degrade the quality of the noise reduction somewhat. |
The lower section of the tool has separate Strength, Contrast, and Smooth controls for Luma noise and Chroma noise. Luma noise is seen as bright or dark speckles in an image, which Chroma noise is seen as colored speckles. The following controls are included for both Luma and Chroma:
| • | Strength: Controls the overall level of noise reduction applied to the image |
| • | Contrast: Adjusts the noise detection procedure by controlling a scaling factor to edges |
| • | Smooth: Smoothness increases or decreases the noise levels estimated by the Noise Profile. Usually the default setting is adequate, but if you see isolated specks in smooth areas, try increasing the smoothness setting to see if they go away. |
All noise reduction technology causes at least a slight drop in sharpness; the Noise Ninja Registered tool contains its own sharpening tool on the USM tab to apply an unsharp mask sharpening procedure after applying noise reduction. The USM tab contains:
| • | Amount: Controls the strength of the sharpening |
| • | Radius: Adjusts how much of the images will be affected by the USM control |
The last tab contain tools to show what profile is being used in the noise reduction process, or to create new custom noise profiles.
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Lens distortion refers to any imperfection in the image that is projected on your camera's sensor at the time you press the shutter release. While zoom lenses with a large range of focal lengths show the greatest distortion, even fixed-focal length - or "prime" - lenses can exhibit some types of distortion. The three most common types of lens distortion can quickly and easily be corrected in Bibble 5.
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Barrel and Pin-Cushion distortion is commonly referred to simply as Lens Distortion. This is caused from non-uniform magnification of the image from the outside of the image (perimeter) to the center. Barrel distortion refers to magnification that diminished towards the edges of the image resulting in a image that looks rounded, like a barrel. Pin cushion appears as an image that looks pinched or narrowed at the sides. Each lens has its own Barrel and Pin- Cushion characteristics, and by analyzing a set of images from a lens at all focal lengths, this distortion can be removed. B5 included profiles for several hundred lens and camera combinations.
Chromatic Aberration distortion (known a CA distortion) is a result of non-uniform bending of light of varying color (wavelength) as it passes through a lens. Zoom lenses, particularly at their widest and longest focal lengths, exhibit the most severe distortion. This distortion appears most at image corners in high-contrast areas, like branches of a tree silhouetted against a bright sky, and is seen as uneven colors around the details of an image. This is typically called color fringing, and is mostly seen in purple colors. CA distortion can be removed by adjusting the data for the colors that show the most distortion.
Vignetting is the darkening of corners of an image due to light fall-off, and can be caused by optics (the lens itself), the sensor (many sensors are less sensitive to light that hits the sensor at an angle) or from other causes like a filter or lens hood that shades the corners of an image. Vignetting can be corrected by lightening the only the corners of an image. However, some photographers chose to add or enhance vignetting as an artistic effect. Thus Bibble allows you to darken the corners of an image, artificially adding vignetting. Adding a vignette is always performed on the cropped portion of the image, while correcting vignette is applied to the entire original frame.
The Lens Correction Tool contains the following controls:
The top section controls Barrel and Pin-Cushion distortion, and contains two tabs: the 'Database' is used when you want to correct your images based on camera and lens profiles built into Bibble 5.
| • | Enable correction: Quickly toggles Lens Correction on or off |
| • | Resize to Fit: Click to zoom in or out slightly to ensure the full image fills the image frame. Leave this unchecked to prevent Bibble from scaling your image if you want to fill in the empty sections of your image manually. |
| • | Manufacturer, Model, Lens: These drop-down menus show what camera and lens Bibble things your image was made with. Some cameras and lenses include data in the image file that allows B5 to determine exactly what camera and lens was used, but other times it must guess based on other data available. You can correct incorrect guesses by selecting the correct manufacturer, camera model, and lens here. These determine the Lens Distortion profile to use when removing distortion. |
| • | Focal Length: Shows the focal length the lens was set at when the photo was taken. You can set the focal length manually if the image file didn't contain this information. |
| • | Reload EXIF: Click this button to have Bibble re-read the EXIF data from the selected image, guess the camera and lens type, and select the appropriate entries in the drop-downs.1 |
The 'Manual' tab allows you to manually enter correction parameters instead of using correction parameters from profiles built into B5. This is useful for lenses that are not yet in the B5 lens correction database. Some details of these parameters and how to determine them can be found at http://wiki.panotools.org/Lens_correction_model
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The Chromatic Aberration section contains the following:
| • | Chromatic Aberration Correction: Quickly toggles Chromatic Aberration Correction on or off. This control is independent of Barrel and Pin-Cushion distortion correction and Vignette correction. |
| • | R / C: Controls the shift of colors along the Red / Cyan color axis. |
| • | B / Y: Controls the shift of colors along the Blue / Yellow color axis. |
The Vignette Correction section contains the following:
| • | Enable Vignetting: Quickly toggles Vignette control on or off. This control is independent of Barrel and Pin-Cushion distortion correction and Chromatic Aberration Correction. |
| • | Strength: Controls how light (positive or right) or dark (negative or left) the correction will be. |
| • | Radius: Controls how far into the image the correction should extend |
