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  2. RGBA color model - Wikipedia

    en.wikipedia.org/wiki/RGBA_color_model

    Example of an RGBA image composited over a checkerboard background. alpha is 0% at the top and 100% at the bottom. RGBA stands for red green blue alpha.While it is sometimes described as a color space, it is actually a three-channel RGB color model supplemented with a fourth alpha channel.

  3. Alpha compositing - Wikipedia

    en.wikipedia.org/wiki/Alpha_compositing

    A color spectrum image with an alpha channel that falls off to zero at its base, where it is blended with the background color.. In computer graphics, alpha compositing or alpha blending is the process of combining one image with a background to create the appearance of partial or full transparency. [1]

  4. Transparency (graphic) - Wikipedia

    en.wikipedia.org/wiki/Transparency_(graphic)

    an image that is not rectangular can be filled to the required rectangle using transparent surroundings; the image can even have holes (e.g. be ring-shaped) in a run of text, a special symbol for which an image is used because it is not available in the character set, can be given a transparent background, resulting in a matching background.

  5. Template:Userbox - Wikipedia

    en.wikipedia.org/wiki/Template:Userbox

    Logo CSS classes: id-class: CSS class or classes for the logo; optional. Default (none) String: optional: Extra logo styling: id-op logo-other-param: Add additional arbitrary CSS styling to the logo. Example opacity: 0.25: String: optional: Info: info 4: info text or image. Content: required: Info content horizontal alignment: info-a

  6. Deep image compositing - Wikipedia

    en.wikipedia.org/wiki/Deep_image_compositing

    Deep image compositing is a way of compositing and rendering digital images that emerged in the mid-2010s. In addition to the usual color and opacity channels a notion of spatial depth is created. This allows multiple samples in the depth of the image to make up the final resulting color.

  7. Live Clipboard - Wikipedia

    en.wikipedia.org/wiki/Live_Clipboard

    The control positions a transparent (opacity = 0) input element in a containing div element with a background .png image of the clipboard icon. When the user gives focus to the input by left- or right-clicking it, tabbing etc. the control script gets the data that should be copied by calling the OnGetLiveClipboardData function.

  8. Alpha mapping - Wikipedia

    en.wikipedia.org/wiki/Alpha_mapping

    Alpha mapping is used when the given object's transparency is not consistent: when the transparency amount is not the same for the entire object and/or when the object is not entirely transparent. If the object has the same level of transparency everywhere, one can either use a solid-color alpha texture or an integer value.

  9. CSS image replacement - Wikipedia

    en.wikipedia.org/wiki/CSS_image_replacement

    CSS image replacement is a Web design technique that uses Cascading Style Sheets to replace text on a Web page with an image containing that text. It is intended to keep the page accessible to users of screen readers, text-only web browsers, or other browsers where support for images or style sheets is either disabled or nonexistent, while allowing the image to differ between styles.