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  2. Line detection - Wikipedia

    en.wikipedia.org/wiki/Line_detection

    The Hough transform [3] can be used to detect lines and the output is a parametric description of the lines in an image, for example ρ = r cos(θ) + c sin(θ). [1] If there is a line in a row and column based image space, it can be defined ρ, the distance from the origin to the line along a perpendicular to the line, and θ, the angle of the perpendicular projection from the origin to the ...

  3. Frei-Chen operator - Wikipedia

    en.wikipedia.org/wiki/Frei-Chen_operator

    The image is convoled with each of the kernel. Thus, 9 results are obtained. Vectors ,... are used for edge subspace identification. Hence numerator in the formula will be = (). Similarly, for line subspace identification, the numerator will be = (). . Using formula, we compute , if it is above a certain threshold , we say that an edge is detected in the image sub-area. . Example comparisons ...

  4. Chessboard detection - Wikipedia

    en.wikipedia.org/wiki/Chessboard_detection

    The grid structure of a chessboard naturally defines two sets of parallel lines in an image of it. Therefore, one expects that line detection algorithms should successfully detect these lines in practice. Indeed, the following figure demonstrates Hough transform-based line detection applied to a perspective-transformed chessboard image. Clearly ...

  5. Download, install, or uninstall AOL Desktop Gold - AOL Help

    help.aol.com/articles/aol-desktop-downloading...

    1. Search your inbox for the subject line 'Get Started with AOL Desktop Gold'. 2. Open the email. 3. Click Download AOL Desktop Gold or Update Now. 4. Navigate to your Downloads folder and click Save. 5. Follow the installation steps listed below.

  6. AOL Products - AOL App

    www.aol.com/products/utilities/aol-app

    Enjoy an ad-free experience across all email accounts in your AOL mobile app. Select your default screen Customize the experience you see first when you open the AOL app.

  7. Comparison of free off-line satellite navigation software

    en.wikipedia.org/wiki/Comparison_of_free_off...

    A particular case-in-point is the Android software which can often be run on laptops or PCs (running Linux, Windows or Mac OS X) as well. This can be done using emulators. This can be done using emulators.

  8. 16 Tips for a Healthy & Safe Holiday Gathering for Your ...

    www.aol.com/16-tips-healthy-safe-holiday...

    Pre-Gathering Preparation. Before attending a holiday gathering, it’s important to ensure everything is set for a safe and enjoyable time. Key preparations include checking health status ...

  9. List of interactive geometry software - Wikipedia

    en.wikipedia.org/wiki/List_of_interactive...

    There are three main types of computer environments for studying school geometry: supposers [vague], dynamic geometry environments (DGEs) and Logo-based programs. [2] Most are DGEs: software that allows the user to manipulate ("drag") the geometric object into different shapes or positions.