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The following other wikis use this file: Usage on ar.wikipedia.org خداع بصري; خداع الشبكة; قائمة الخدع البصرية
A grid applied within an image (instead of a page) using additional angular lines to guide proportions. In graphic design , a grid is a structure (usually two-dimensional ) made up of a series of intersecting straight (vertical, horizontal, and angular) or curved lines ( grid lines ) used to structure content.
Any kind of grid that deceives a person's vision. The two most common types of grid illusions are the Hermann grid illusion (1870) and the scintillating grid illusion (1994). The first is characterized by "ghostlike" grey blobs perceived at the intersections of a white (or light-colored) grid on a black background.
The grid was developed by Marc Amsler, a Swiss ophthalmologist. It is a diagnostic tool that aids in the detection of visual disturbances caused by changes in the retina , particularly the macula (e.g. macular degeneration , Epiretinal membrane ), as well as the optic nerve and the visual pathway to the brain.
1. Sign in to Desktop Gold. 2. Click the Settings button. 3. Click Personalization. 4. Click the Sounds tab. 5. Click Customize My Sounds. 6. Search for a sound or select a category from the "All" menu at the top-right.
Find and select the file or image you'd like to attach. Click Open. The file or image will be attached below the body of the email. If you'd like to insert an image directly into the body of an email, check out the steps in the "Insert images into an email" section of this article.