#White spots on photos when scanning software#
#White spots on photos when scanning professional#
#White spots on photos when scanning free#

Check to see that it's straight, that no part of the photo has been cut off, and that the photo appears free of dust and lint. Then hit 'prescan' or 'preview.' The scanner will take a quick pass of the image and display a rough version on your screen.

Carefully position your photo on the scanner face down on the glass, just like on a photocopy machine.

It's even better to do 600 dpi or greater if you plan to eventually store these photos on CD or DVD, and have space on your computer hard drive to handle such large images. A good rule of thumb is to scan your photos at a minimum of 300 dpi (dots per inch) to assure decent quality for enhancement and restoration techniques. The optimal resolution depends on how the image will be printed, saved, or displayed.

Determine the best scan resolution to assure the quality of your digital photos.

You'll have more manipulation options, and you can change a color photo to black and white (grayscale), but not the other way around. When scanning family photos, it is usually best to scan in color, even if the source photo is black and white. If you're scanning photos, you have a basic choice of color photo vs. When using your scanner or handling photographs, it is best to wear clean white cotton gloves (available from photo stores and hardware stores) to avoid leaving fingerprints on your scanner or photos. Household glass cleaner can be used to clean your scanner glass, as long as you're careful to spray it directly on the cloth before wiping, not directly on the glass surface. Use a lint-free pad or wipe to thoroughly clean the glass (basically anything that is sold as safe for cleaning camera lenses will also work for your scanner).

Check the scanner glass for lint, hair, fingerprints, or smudges.

Canned air, available at most office supply stores, helps to blast away dust and lint from photographic slides but is not recommended for heirloom print photos. Gently remove surface dust and dirt with a soft brush or lint-free photoВ wipe.

Check your photos for dirt, lint, or smudges.

He currently is an Assistant Professor at Stanford University at the Byers Eye Institute in Palo Alto, California. Louis and then completed a research and clinical fellowship at the Bascom Palmer Eye Institute at the University of Miami. Chang completed his ophthalmology training at Washington University in St.

Since optic nerve damage cannot be reversed by any current therapy, close surveillance with structural as well as functional testing, combined with early intervention while balancing the risk of side effects, is key to keeping glaucoma under control and to preserving sight.ДЄrticle by Robert Chang, MD. This sometimes makes the data less useful because it can be difficult to compare new versions with old ones.

#White spots on photos when scanning software#

However, every few years, the software is updated, and every decade the technology advances dramatically just like computers. Scans may also be better for determining when glaucoma is getting worse. Photographs do not get outdated, and the information contained in them can be very useful for demonstrating 'no change' years later.Д¬ompared with a photograph, optic nerve scans contains more objective, quantitative information for staging of disease progress. A color photograph provides a more accurate baseline for future comparison. Your doctor may document this assessment either with drawings or with optic disc photos. Viewing the optic nerve through lenses and a slit lamp is the best way for your doctor to assess the optic nerve for glaucoma. Scans can detect small nerve fiber layer changes of the optic nerve at the micron level.

#White spots on photos when scanning professional#

Two common imaging tests include a simple high-resolution color photograph with a very bright flash from a professional camera, and a quick laser scan of the optic nerve. In general, optic nerve imaging is more useful in glaucoma suspect and early-to-moderate glaucomatous patients rather than advanced disease. This is because imaging records the anatomy, or structural features of the eye, while visual fields assess what someone actually sees, or the function of the eye. Imaging of the optic nerve is complementary to visual field testing and using both together is more useful than each test alone. The goal of today's glaucoma therapy of lowering intraocular pressure is to slow progression, and imaging tests are an important tool for monitoring progression.

There are several types of pictures, and each one provides different information about the amount of optic nerve tissue lost as well as the rate of nerve fiber thinning or 'progression' that occurs when glaucoma is not controlled. Glaucoma specialists take pictures of the optic nerve in order to measure damage to this important cable that connects your eye to your brain. OCT вЂ“ Optical Coherence Tomography (Devices include: Cirrus HD-OCT, RTVue-100, Spectralis, Topcon 3D-OCT 2000, and others)Д¬SLO вЂ“ Confocal Scanning Laser Ophthalmoscopy (HRT) Types of Optic Nerve Scanning Technologies