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  2. Wikipedia:Removal of non-free images - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Removal_of_non...

    Instead, you can list the image without actually displaying it. For example, let's say this image was a fair use image: If it were a fair use image (it isn't, it is in the public domain as a work of the U.S. government), then displaying it on one's userspace (or here in the Wikipedia project space) would be against policy. So, alternatively one ...

  3. Image editing - Wikipedia

    en.wikipedia.org/wiki/Image_editing

    Image editors may feature a number of algorithms which can add or remove noise in an image. Some JPEG artifacts can be removed; dust and scratches can be removed and an image can be de-speckled. Noise reduction merely estimates the state of the scene without the noise and is not a substitute for obtaining a "cleaner" image.

  4. Diversity Immigrant Visa - Wikipedia

    en.wikipedia.org/wiki/Diversity_Immigrant_Visa

    The Immigration Act of 1990 established the current and permanent Diversity Visa (DV) program. The lottery is administered by the Department of State and conducted under the Immigration and Nationality Act (INA). It provides up to 55,000 immigrant visas annually and aims to diversify the immigrant population in the United States, by selecting ...

  5. Foreground detection - Wikipedia

    en.wikipedia.org/wiki/Foreground_detection

    Background image (left) and foreground image. All detection techniques are based on modelling the background of the image, i.e. set the background and detect which changes occur. Defining the background can be very difficult when it contains shapes, shadows, and moving objects.

  6. The visa lottery to win one of 55,000 U.S. green cards is ...

    www.aol.com/visa-lottery-win-one-55-195351897.html

    Science & Tech. Shopping. Sports

  7. 4K resolution - Wikipedia

    en.wikipedia.org/wiki/4K_resolution

    The terms "4K" and "Ultra HD" are used more widely in marketing than "2160p". While typically referring to motion pictures, some digital camera vendors have used the term "4K photo" for still photographs, making it appear like an especially high resolution even though 3840×2160 pixels equal approximately 8.3 megapixels, which is not considered ...