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  2. Help : How to reduce colors for saving a JPEG as PNG

    en.wikipedia.org/wiki/Help:How_to_reduce_colors...

    First make sure your image has an alpha channel. Duplicate the original layer, but make it invisible. If the background should not be transparent when you are finished, create another new layer, and choose "Alpha to Selection" from the layer menu. Deselect any part that is supposed to remain transparent, and then shrink the selection by one.

  3. GIMP - Wikipedia

    en.wikipedia.org/wiki/GIMP

    GIMP also supports a quick mask mode where a user can use a brush to paint the area of a selection. Visibly this looks like a red colored overlay being added or removed. The foreground select tool is an implementation of Simple interactive object extraction (SIOX), a method used to perform the extraction of foreground elements, such as a person ...

  4. XCF (file format) - Wikipedia

    en.wikipedia.org/wiki/XCF_(file_format)

    XCF, short for eXperimental Computing Facility, [1] is the native image format of the GIMP image-editing program. It saves all of the data the program handles related to the image, including, among others, each layer, the current selection, channels, transparency, paths and guides.

  5. Image editing - Wikipedia

    en.wikipedia.org/wiki/Image_editing

    Once the image is selected, it may be copied and pasted into another section of the same file, or into a separate file. The selection may also be saved in what is known as an alpha channel. A popular way to create a composite image is to use transparent layers. The background image is used as the bottom layer, and the image with parts to be ...

  6. Blend modes - Wikipedia

    en.wikipedia.org/wiki/Blend_modes

    Most graphics editing programs, such as Adobe Photoshop and GIMP, allow users to modify the basic blend modes, for example by applying different levels of opacity to the top "layer". The top "layer" is not necessarily a layer in the application; it may be applied with a painting or editing tool.

  7. Wikipedia : Graphics Lab/Resources/QGIS/Shaded reliefs

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

    Concept: make the shaded relief whiter, or better transparent, so only the shadows appear. Make lighter background ("Avoid chartjunk/overload"). Specifics: Work on RGB files only. When opening the .tif file in GIMP, the landmass appear grey, northwest sides of hills appear white, while hills' south east side (shadow) appear black.

  8. Nationals OF Dylan Crews runs own race with spotlight on '23 ...

    www.aol.com/nationals-dylan-crews-runs-own...

    Washington Nationals outfielder Dylan Crews (3) scores a run during the second inning against the Philadelphia Phillies at Nationals Park. Mandatory Credit: James A. Pittman-Imagn Images (James A ...

  9. Marching ants - Wikipedia

    en.wikipedia.org/wiki/Marching_ants

    The marching ants effect is an animation technique often found in selection tools of computer graphics programs. It helps the user to distinguish the selection border from the image background by animating the border. The border is a dotted or dashed line where the dashes seem to move slowly sideways and up and down.