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You own the world’s finest kitchen appliancesbychoosing Sub-Zero and Wolf appliances. Asan owner of Sub-Zero and Wolf brands, you have purchased apowerful combination of performance, design, and dependability. You nowdeserve to have the same best in class service experience. Why Prestigious Appliance?We offer superior knowledge and experience, sincewe specialize in only servicing the brand you own. We provide you with the most precise and professional servicefor an innovative,prestigious experience. We are Sub-Zero Repair in Birmingham Sub-Zero Repair in Mountain Brook wolf repair in Birmingham

Prestigious Appliance in repairs, service and maintenance of Sub-Zero refrigeration, Wolf cooking and ASKO dishwasher appliances.

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Prestigious Appliance was so easy to work with to repair my "classic" Sub Zero appliances. I was very concerned about their age and low performance. Ken was very reassuring and was able to have a team out quickly to service and repair them. 100% impressed with their knowledge and customer service!


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Image sharpening is a powerful tool for emphasizing texture and drawing viewer focus. It's also required of any digital photo at some point — whether you're aware it's been applied or not. Digital camera sensors and lenses always blur an image to some degree, for example, and this requires correction. However, not all sharpening techniques are created equal. When performed too aggressively, unsightly sharpening artifacts may appear. On the other hand, when done correctly, sharpening can often improve apparent image quality even more so than upgrading to a high-end camera lens.

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Most image sharpening software tools work by applying something called an "unsharp mask," which despite its name, actually acts to sharpen an image. Although this tool is thoroughly covered in the unsharp mask tutorial , in a nutshell it works by exaggerating the brightness difference along edges within an image:


Note that while the sharpening process isn't able to reconstruct the ideal image above, it is able to create the appearance of a more pronounced edge (see Zebra print sneakers Black Rick Owens G9hy37gopu
). The key to effective sharpening is walking the delicate balance between making edges appear sufficiently pronounced, while also minimizing visible under and overshoots (called "sharpening halos").

Soft Original
Mild Sharpening
Over Sharpening

note: all images shown at 200% zoom to improve visibility

Fortunately, most of the sharpening settings within image-editing software are reasonably standardized. One can usually adjust at least three settings:

It's generally advisable to first optimize the radius setting, then to adjust the amount, and then finally to fine-tune the results by adjusting the threshold/masking setting (and potentially other settings such as "detail"). Optimal results may require a few iterations.

Most photographers now agree that sharpening is most effective and flexible when it's applied more than once during image editing. Each stage of the sharpening process can be categorized as follows:

Capture Sharpening Accounts for your image's source device, along with any detail noise characteristics
Creative Sharpening Uniquely accounts for your image's content artistic intent
Output Sharpening Accounts for final output medium, after editing/resizing

(1) Capture sharpening aims to address any blurring caused by your image's source, while also taking image noise and detail into consideration. With digital cameras, such blurring is caused by the camera sensor's anti-aliasing filter and demosaicing process, in addition to your camera's lens. Capture sharpening is required for virtually all digital images, and may be applied automatically by the camera for photos which are saved as JPEG files. It also ensures the image will respond well to subsequent rounds of sharpening.


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*The museum and restaurant are open on select holiday Mondays; view the complete list on our Visit page .


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